{"kind": "protocol", "major": "18", "item": {"slug": "bind-f", "name": "Bind", "name_zh": "", "category": "\u524d\u7aef\u6d88\u606f", "summary": "Bind \u662f\u524d\u7aef\u534f\u8bae\u6d88\u606f\uff0c\u8868\u793a Bind \u547d\u4ee4\u3002", "aliases": ["Bind", "Byte1('B')"], "content_hash": "1bc9bc4e8c9fbb03b212a84d1f0a0dbb5b8dbf68588e37f3223a2c41a2a323ce", "versions": {"10": {"facts": [{"label": "\u65b9\u5411", "value": "\u524d\u7aef \u2192 \u540e\u7aef"}, {"label": "\u9996\u4e2a\u7ebf\u4e0a\u534f\u8bae\u5b57\u6bb5", "value": "Byte1('B')"}, {"label": "\u5b57\u6bb5\u6761\u76ee", "value": "11"}, {"label": "\u624b\u518c\u4e2d\u7684\u4ea4\u4e92\u9636\u6bb5", "value": "\u6269\u5c55\u67e5\u8be2\uff1b\u51fd\u6570\u8c03\u7528"}], "fields": [{"format": "Byte1('B')", "description": "Identifies the message as a Bind command."}, {"format": "Int32", "description": "Length of message contents in bytes, including self."}, {"format": "String", "description": "The name of the destination portal (an empty string selects the unnamed portal)."}, {"format": "String", "description": "The name of the source prepared statement (an empty string selects the unnamed prepared statement)."}, {"format": "Int16", "description": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters."}, {"format": "Int16[ C ]", "description": "The parameter format codes. Each must presently be zero (text) or one (binary)."}, {"format": "Int16", "description": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query."}, {"format": "Int32", "description": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case."}, {"format": "Byte n", "description": "The value of the parameter, in the format indicated by the associated format code. n is the above length."}, {"format": "Int16", "description": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query."}, {"format": "Int16[ R ]", "description": "The result-column format codes. Each must presently be zero (text) or one (binary)."}], "tables": [{"key": "fields", "rows": [{"c0": "1", "c1": "Byte1('B')", "c2": "\u5c06\u8be5\u6d88\u606f\u6807\u8bc6\u4e3a Bind \u547d\u4ee4\u3002"}, {"c0": "2", "c1": "Int32", "c2": "\u6d88\u606f\u5185\u5bb9\u7684\u957f\u5ea6\uff08\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff09\uff0c\u5305\u62ec\u5176\u81ea\u8eab\u3002"}, {"c0": "3", "c1": "\u5b57\u7b26\u4e32", "c2": "\u76ee\u6807 portal \u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684 portal\uff09\u3002"}, {"c0": "4", "c1": "\u5b57\u7b26\u4e32", "c2": "\u6e90\u9884\u5907\u8bed\u53e5\u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684\u9884\u5907\u8bed\u53e5\uff09\u3002"}, {"c0": "5", "c1": "Int16", "c2": "\u540e\u7eed\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 C \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u53c2\u6570\uff0c\u6216\u8005\u6240\u6709\u53c2\u6570\u90fd\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u53c2\u6570\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u5b9e\u9645\u53c2\u6570\u6570\u91cf\u3002"}, {"c0": "6", "c1": "Int16[ C ]", "c2": "\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002"}, {"c0": "7", "c1": "Int16", "c2": "\u540e\u7eed\u53c2\u6570\u503c\u7684\u6570\u91cf\uff08\u53ef\u4ee5\u4e3a\u96f6\uff09\u3002\u5fc5\u987b\u4e0e\u67e5\u8be2\u6240\u9700\u7684\u53c2\u6570\u6570\u91cf\u4e00\u81f4\u3002"}, {"c0": "8", "c1": "Int32", "c2": "\u53c2\u6570\u503c\u7684\u957f\u5ea6\uff0c\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff08\u4e0d\u5305\u62ec\u6b64\u957f\u5ea6\u5b57\u6bb5\u672c\u8eab\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\u3002\u7279\u6b8a\u503c -1 \u8868\u793a NULL \u53c2\u6570\u503c\u3002\u4e3a NULL \u65f6\uff0c\u540e\u9762\u4e0d\u518d\u6709\u503c\u7684\u5b57\u8282\u3002"}, {"c0": "9", "c1": "Byte n", "c2": "\u53c2\u6570\u503c\uff0c\u683c\u5f0f\u7531\u5bf9\u5e94\u7684\u683c\u5f0f\u4ee3\u7801\u6307\u660e\u3002 n \u4e3a\u4e0a\u8ff0\u957f\u5ea6\u3002"}, {"c0": "10", "c1": "Int16", "c2": "\u540e\u7eed\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 R \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u7ed3\u679c\u5217\uff0c\u6216\u8005\u6240\u6709\u7ed3\u679c\u5217\u90fd\u5e94\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u7ed3\u679c\u5217\uff08\u5982\u679c\u6709\uff09\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u67e5\u8be2\u5b9e\u9645\u7684\u7ed3\u679c\u5217\u6570\u91cf\u3002"}, {"c0": "11", "c1": "Int16[ R ]", "c2": "\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002"}], "title": "\u6309\u624b\u518c\u987a\u5e8f\u6392\u5217\u7684\u7ebf\u4e0a\u534f\u8bae\u5b57\u6bb5", "columns": [{"key": "c0", "label": "\u4f4d\u7f6e"}, {"key": "c1", "label": "\u683c\u5f0f"}, {"key": "c2", "label": "\u542b\u4e49"}]}], "related": [{"url": "/docs/10/protocol-flow.html", "label": "\u534f\u8bae\u6d41\u7a0b\u4e0e\u4ea4\u4e92\u793a\u4f8b"}, {"url": "/docs/10/protocol-overview.html", "label": "\u534f\u8bae\u6982\u8ff0"}, {"url": "/docs/10/protocol-flow.html#PROTOCOL-FLOW-EXT-QUERY", "label": "\u6269\u5c55\u67e5\u8be2"}, {"url": "/docs/10/protocol-flow.html#id-1.10.5.7.7", "label": "\u51fd\u6570\u8c03\u7528"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v10.23/postgresql-10.23.tar.bz2", "label": "10.23", "major": "10", "channel": "stable", "revision": "94a4b2528372458e5662c18d406629266667c437198160a18cdfd2c4a4d6eee9"}, "sources": [{"url": "https://pg.center/docs/10/protocol-message-formats.html#PROTOCOL-MESSAGE-FORMATS", "path": "protocol-message-formats.html", "label": "PostgreSQL 10 English manual", "sha256": "b730a205dfc348a67edbc1e9687f2c2df69005fe30c062ef76e37b474538e4f8", "language": "en", "original_url": "/docs/10/protocol-message-formats.html#PROTOCOL-MESSAGE-FORMATS"}], "sections": [{"title": "\u6d88\u606f\u8fb9\u754c\u4e0e\u91cd\u590d\u5b57\u6bb5", "paragraphs": ["\u4e0b\u65b9\u5b8c\u6574\u5b9a\u4e49\u4fdd\u7559\u91cd\u590d\u9879\u3001\u8ba1\u6570\u4e0e\u6761\u4ef6\u5b57\u6bb5\u3002\u8868\u683c\u884c\u53f7\u8868\u793a\u6587\u6863\u4e2d\u7684\u5b57\u6bb5\u5b9a\u4e49\uff0c\u5e76\u975e\u56fa\u5b9a\u5b57\u8282\u504f\u79fb\u91cf\u3002\u6574\u6570\u7f16\u7801\u4e0e\u4ea4\u4e92\u6d41\u7a0b\u4ee5\u540c\u7248\u672c\u534f\u8bae\u7ae0\u8282\u4e3a\u51c6\u3002"]}], "direction": "F", "signature": "Bind (F)", "description": ["Bind \u662f\u524d\u7aef\u534f\u8bae\u6d88\u606f\uff0c\u8868\u793a Bind \u547d\u4ee4\u3002"], "manual_html": "
\n
\n
\n
Byte1('B')
\n
\n

\n

\u5c06\u8be5\u6d88\u606f\u6807\u8bc6\u4e3a Bind \u547d\u4ee4\u3002

\n

\n
\n
Int32
\n
\n

\n

\u6d88\u606f\u5185\u5bb9\u7684\u957f\u5ea6\uff08\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff09\uff0c\u5305\u62ec\u5176\u81ea\u8eab\u3002

\n

\n
\n
\u5b57\u7b26\u4e32
\n
\n

\n

\u76ee\u6807 portal \u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684 portal\uff09\u3002

\n

\n
\n
\u5b57\u7b26\u4e32
\n
\n

\n

\u6e90\u9884\u5907\u8bed\u53e5\u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684\u9884\u5907\u8bed\u53e5\uff09\u3002

\n

\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 C \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u53c2\u6570\uff0c\u6216\u8005\u6240\u6709\u53c2\u6570\u90fd\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u53c2\u6570\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u5b9e\u9645\u53c2\u6570\u6570\u91cf\u3002

\n

\n
\n
Int16[C]
\n
\n

\n

\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002

\n

\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u53c2\u6570\u503c\u7684\u6570\u91cf\uff08\u53ef\u4ee5\u4e3a\u96f6\uff09\u3002\u5fc5\u987b\u4e0e\u67e5\u8be2\u6240\u9700\u7684\u53c2\u6570\u6570\u91cf\u4e00\u81f4\u3002

\n

\n
\n
\n
\n

\u63a5\u4e0b\u6765\uff0c\u6bcf\u4e2a\u53c2\u6570\u90fd\u6709\u4ee5\u4e0b\u4e00\u5bf9\u5b57\u6bb5\uff1a

\n
\n
\n
Int32
\n
\n

\n

\u53c2\u6570\u503c\u7684\u957f\u5ea6\uff0c\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff08\u4e0d\u5305\u62ec\u6b64\u957f\u5ea6\u5b57\u6bb5\u672c\u8eab\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\u3002\u7279\u6b8a\u503c -1 \u8868\u793a NULL \u53c2\u6570\u503c\u3002\u4e3a NULL \u65f6\uff0c\u540e\u9762\u4e0d\u518d\u6709\u503c\u7684\u5b57\u8282\u3002

\n

\n
\n
Byte n
\n
\n

\n

\u53c2\u6570\u503c\uff0c\u683c\u5f0f\u7531\u5bf9\u5e94\u7684\u683c\u5f0f\u4ee3\u7801\u6307\u660e\u3002n \u4e3a\u4e0a\u8ff0\u957f\u5ea6\u3002

\n

\n
\n
\n
\n

\u6700\u540e\u4e00\u4e2a\u53c2\u6570\u4e4b\u540e\u662f\u4ee5\u4e0b\u5b57\u6bb5\uff1a

\n
\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 R \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u7ed3\u679c\u5217\uff0c\u6216\u8005\u6240\u6709\u7ed3\u679c\u5217\u90fd\u5e94\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u7ed3\u679c\u5217\uff08\u5982\u679c\u6709\uff09\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u67e5\u8be2\u5b9e\u9645\u7684\u7ed3\u679c\u5217\u6570\u91cf\u3002

\n

\n
\n
Int16[R]
\n
\n

\n

\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002

\n

\n
\n
\n
\n
", "manual_path": "/docs/10/protocol-message-formats.html", "localization": {"status": "complete", "sources": [{"url": "/docs/10/datatype-json.html", "method": "same-major semantic node", "sha256": "165b454cf9ff6825d21a4252844d43764fca541eafd0649170257d230e23425b", "language": "zh", "matched_nodes": ["#DATATYPE-JSON/div[18]/pre[23]/em[4]/code[0]"]}, {"url": "/docs/10/protocol-message-formats.html", "method": "same-major semantic node", "sha256": "fb3f5382c61e7fcc0eaa29589ac1811e59b1cc7a8bd23c1ebe5fc8f17c9819b2", "language": "zh", "matched_nodes": ["#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[1]/div[0]/dl[0]/dd[3]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[25]/div[0]/dl[0]/dd[11]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[25]/div[0]/dl[0]/dd[13]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[25]/div[0]/dl[0]/dd[1]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[25]/div[0]/dl[0]/dd[5]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[25]/div[0]/dl[0]/dd[7]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[25]/div[0]/dl[0]/dd[9]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[25]/div[2]/dl[0]/dd[1]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[25]/div[2]/dl[0]/dd[3]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[25]/div[4]/dl[0]/dd[1]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[25]/div[4]/dl[0]/dd[3]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[25]/p[1]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[25]/p[3]"]}], "language": "zh", "original_text": {"/versions/10/description/0": "Bind is a frontend protocol message. Identifies the message as a Bind command.", "/versions/10/facts/0/label": "Direction", "/versions/10/facts/0/value": "Frontend \u2192 backend", "/versions/10/facts/1/label": "First wire field", "/versions/10/facts/2/label": "Field entries", "/versions/10/facts/3/label": "Documented flow contexts", "/versions/10/facts/3/value": "Extended Query; Function Call", "/versions/10/tables/0/title": "Wire fields in documented order", "/versions/10/related/0/label": "Protocol flow and exchange examples", "/versions/10/related/1/label": "Protocol overview", "/versions/10/related/2/label": "Extended Query", "/versions/10/related/3/label": "Function Call", "/versions/10/sections/0/title": "Framing and repetition", "/versions/10/tables/0/rows/0/c2": "Identifies the message as a Bind command.", "/versions/10/tables/0/rows/1/c2": "Length of message contents in bytes, including self.", "/versions/10/tables/0/rows/2/c1": "String", "/versions/10/tables/0/rows/2/c2": "The name of the destination portal (an empty string selects the unnamed portal).", "/versions/10/tables/0/rows/3/c1": "String", "/versions/10/tables/0/rows/3/c2": "The name of the source prepared statement (an empty string selects the unnamed prepared statement).", "/versions/10/tables/0/rows/4/c2": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters.", "/versions/10/tables/0/rows/5/c2": "The parameter format codes. Each must presently be zero (text) or one (binary).", "/versions/10/tables/0/rows/6/c2": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query.", "/versions/10/tables/0/rows/7/c2": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case.", "/versions/10/tables/0/rows/8/c1": "Byte n", "/versions/10/tables/0/rows/8/c2": "The value of the parameter, in the format indicated by the associated format code. n is the above length.", "/versions/10/tables/0/rows/9/c2": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query.", "/versions/10/tables/0/rows/10/c2": "The result-column format codes. Each must presently be zero (text) or one (binary).", "/versions/10/sections/0/paragraphs/0": "The complete definition below retains repetition, counts and conditional fields. A numbered table row is a documented field definition, not a fixed byte offset. Integer encodings and flow rules follow the same-version protocol chapter.", "/versions/10/tables/0/columns/0/label": "Position", "/versions/10/tables/0/columns/1/label": "Format", "/versions/10/tables/0/columns/2/label": "Meaning"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "7ccd8b2c8e0088a60908d4c05f8383ce7580e8f1050c405f622064ae53add7c5"}, "comparison_data": {"fields": [{"format": "Byte1('B')", "description": "Identifies the message as a Bind command."}, {"format": "Int32", "description": "Length of message contents in bytes, including self."}, {"format": "String", "description": "The name of the destination portal (an empty string selects the unnamed portal)."}, {"format": "String", "description": "The name of the source prepared statement (an empty string selects the unnamed prepared statement)."}, {"format": "Int16", "description": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters."}, {"format": "Int16[ C ]", "description": "The parameter format codes. Each must presently be zero (text) or one (binary)."}, {"format": "Int16", "description": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query."}, {"format": "Int32", "description": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. 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This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters."}, {"format": "Int16[ C ]", "description": "The parameter format codes. Each must presently be zero (text) or one (binary)."}, {"format": "Int16", "description": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query."}, {"format": "Int32", "description": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case."}, {"format": "Byte n", "description": "The value of the parameter, in the format indicated by the associated format code. n is the above length."}, {"format": "Int16", "description": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query."}, {"format": "Int16[ R ]", "description": "The result-column format codes. Each must presently be zero (text) or one (binary)."}], "tables": [{"key": "fields", "rows": [{"c0": "1", "c1": "Byte1('B')", "c2": "\u5c06\u8be5\u6d88\u606f\u6807\u8bc6\u4e3a Bind \u547d\u4ee4\u3002"}, {"c0": "2", "c1": "Int32", "c2": "\u6d88\u606f\u5185\u5bb9\u7684\u957f\u5ea6\uff08\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff09\uff0c\u5305\u62ec\u5176\u81ea\u8eab\u3002"}, {"c0": "3", "c1": "\u5b57\u7b26\u4e32", "c2": "\u76ee\u6807 portal \u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684 portal\uff09\u3002"}, {"c0": "4", "c1": "\u5b57\u7b26\u4e32", "c2": "\u6e90\u9884\u5907\u8bed\u53e5\u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684\u9884\u5907\u8bed\u53e5\uff09\u3002"}, {"c0": "5", "c1": "Int16", "c2": "\u540e\u7eed\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 C \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u53c2\u6570\uff0c\u6216\u8005\u6240\u6709\u53c2\u6570\u90fd\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u53c2\u6570\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u5b9e\u9645\u53c2\u6570\u6570\u91cf\u3002"}, {"c0": "6", "c1": "Int16[ C ]", "c2": "\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002"}, {"c0": "7", "c1": "Int16", "c2": "\u540e\u7eed\u53c2\u6570\u503c\u7684\u6570\u91cf\uff08\u53ef\u4ee5\u4e3a\u96f6\uff09\u3002\u5fc5\u987b\u4e0e\u67e5\u8be2\u6240\u9700\u7684\u53c2\u6570\u6570\u91cf\u4e00\u81f4\u3002"}, {"c0": "8", "c1": "Int32", "c2": "\u53c2\u6570\u503c\u7684\u957f\u5ea6\uff0c\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff08\u4e0d\u5305\u62ec\u6b64\u957f\u5ea6\u5b57\u6bb5\u672c\u8eab\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\u3002\u7279\u6b8a\u503c -1 \u8868\u793a NULL \u53c2\u6570\u503c\u3002\u4e3a NULL \u65f6\uff0c\u540e\u9762\u4e0d\u518d\u6709\u503c\u7684\u5b57\u8282\u3002"}, {"c0": "9", "c1": "Byte n", "c2": "\u53c2\u6570\u503c\uff0c\u683c\u5f0f\u7531\u5bf9\u5e94\u7684\u683c\u5f0f\u4ee3\u7801\u6307\u660e\u3002 n \u4e3a\u4e0a\u8ff0\u957f\u5ea6\u3002"}, {"c0": "10", "c1": "Int16", "c2": "\u540e\u7eed\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 R \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u7ed3\u679c\u5217\uff0c\u6216\u8005\u6240\u6709\u7ed3\u679c\u5217\u90fd\u5e94\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u7ed3\u679c\u5217\uff08\u5982\u679c\u6709\uff09\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u67e5\u8be2\u5b9e\u9645\u7684\u7ed3\u679c\u5217\u6570\u91cf\u3002"}, {"c0": "11", "c1": "Int16[ R ]", "c2": "\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002"}], "title": "\u6309\u624b\u518c\u987a\u5e8f\u6392\u5217\u7684\u7ebf\u4e0a\u534f\u8bae\u5b57\u6bb5", "columns": [{"key": "c0", "label": "\u4f4d\u7f6e"}, {"key": "c1", "label": "\u683c\u5f0f"}, {"key": "c2", "label": "\u542b\u4e49"}]}], "related": [{"url": "/docs/11/protocol-flow.html", "label": "\u534f\u8bae\u6d41\u7a0b\u4e0e\u4ea4\u4e92\u793a\u4f8b"}, {"url": "/docs/11/protocol-overview.html", "label": "\u534f\u8bae\u6982\u8ff0"}, {"url": "/docs/11/protocol-flow.html#PROTOCOL-FLOW-EXT-QUERY", "label": "\u6269\u5c55\u67e5\u8be2"}, {"url": "/docs/11/protocol-flow.html#id-1.10.5.7.7", "label": "\u51fd\u6570\u8c03\u7528"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v11.22/postgresql-11.22.tar.bz2", "label": "11.22", "major": "11", "channel": "stable", "revision": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"}, "sources": [{"url": "https://pg.center/docs/11/protocol-message-formats.html#PROTOCOL-MESSAGE-FORMATS", "path": "protocol-message-formats.html", "label": "PostgreSQL 11 English manual", "sha256": "a6087693de687f5a6582bfa6529356ecb8a089e2d56694482352a55eb6ccfdf1", "language": "en", "original_url": "/docs/11/protocol-message-formats.html#PROTOCOL-MESSAGE-FORMATS"}], "sections": [{"title": "\u6d88\u606f\u8fb9\u754c\u4e0e\u91cd\u590d\u5b57\u6bb5", "paragraphs": ["\u4e0b\u65b9\u5b8c\u6574\u5b9a\u4e49\u4fdd\u7559\u91cd\u590d\u9879\u3001\u8ba1\u6570\u4e0e\u6761\u4ef6\u5b57\u6bb5\u3002\u8868\u683c\u884c\u53f7\u8868\u793a\u6587\u6863\u4e2d\u7684\u5b57\u6bb5\u5b9a\u4e49\uff0c\u5e76\u975e\u56fa\u5b9a\u5b57\u8282\u504f\u79fb\u91cf\u3002\u6574\u6570\u7f16\u7801\u4e0e\u4ea4\u4e92\u6d41\u7a0b\u4ee5\u540c\u7248\u672c\u534f\u8bae\u7ae0\u8282\u4e3a\u51c6\u3002"]}], "direction": "F", "signature": "Bind (F)", "description": ["Bind \u662f\u524d\u7aef\u534f\u8bae\u6d88\u606f\uff0c\u8868\u793a Bind \u547d\u4ee4\u3002"], "manual_html": "
\n
\n
\n
Byte1('B')
\n
\n

\n

\u5c06\u8be5\u6d88\u606f\u6807\u8bc6\u4e3a Bind \u547d\u4ee4\u3002

\n

\n
\n
Int32
\n
\n

\n

\u6d88\u606f\u5185\u5bb9\u7684\u957f\u5ea6\uff08\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff09\uff0c\u5305\u62ec\u5176\u81ea\u8eab\u3002

\n

\n
\n
\u5b57\u7b26\u4e32
\n
\n

\n

\u76ee\u6807 portal \u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684 portal\uff09\u3002

\n

\n
\n
\u5b57\u7b26\u4e32
\n
\n

\n

\u6e90\u9884\u5907\u8bed\u53e5\u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684\u9884\u5907\u8bed\u53e5\uff09\u3002

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\n
\n
Int16
\n
\n

\n

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\n

\n
\n
Int16[C]
\n
\n

\n

\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002

\n

\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u53c2\u6570\u503c\u7684\u6570\u91cf\uff08\u53ef\u4ee5\u4e3a\u96f6\uff09\u3002\u5fc5\u987b\u4e0e\u67e5\u8be2\u6240\u9700\u7684\u53c2\u6570\u6570\u91cf\u4e00\u81f4\u3002

\n

\n
\n
\n
\n

\u63a5\u4e0b\u6765\uff0c\u6bcf\u4e2a\u53c2\u6570\u90fd\u6709\u4ee5\u4e0b\u4e00\u5bf9\u5b57\u6bb5\uff1a

\n
\n
\n
Int32
\n
\n

\n

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\n

\n
\n
Byte n
\n
\n

\n

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\n

\n
\n
\n
\n

\u6700\u540e\u4e00\u4e2a\u53c2\u6570\u4e4b\u540e\u662f\u4ee5\u4e0b\u5b57\u6bb5\uff1a

\n
\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 R \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u7ed3\u679c\u5217\uff0c\u6216\u8005\u6240\u6709\u7ed3\u679c\u5217\u90fd\u5e94\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u7ed3\u679c\u5217\uff08\u5982\u679c\u6709\uff09\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u67e5\u8be2\u5b9e\u9645\u7684\u7ed3\u679c\u5217\u6570\u91cf\u3002

\n

\n
\n
Int16[R]
\n
\n

\n

\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002

\n

\n
\n
\n
\n
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Identifies the message as a Bind command.", "/versions/11/facts/0/label": "Direction", "/versions/11/facts/0/value": "Frontend \u2192 backend", "/versions/11/facts/1/label": "First wire field", "/versions/11/facts/2/label": "Field entries", "/versions/11/facts/3/label": "Documented flow contexts", "/versions/11/facts/3/value": "Extended Query; Function Call", "/versions/11/tables/0/title": "Wire fields in documented order", "/versions/11/related/0/label": "Protocol flow and exchange examples", "/versions/11/related/1/label": "Protocol overview", "/versions/11/related/2/label": "Extended Query", "/versions/11/related/3/label": "Function Call", "/versions/11/sections/0/title": "Framing and repetition", "/versions/11/tables/0/rows/0/c2": "Identifies the message as a Bind command.", "/versions/11/tables/0/rows/1/c2": "Length of message contents in bytes, including self.", "/versions/11/tables/0/rows/2/c1": "String", "/versions/11/tables/0/rows/2/c2": "The name of the destination portal (an empty string selects the unnamed portal).", "/versions/11/tables/0/rows/3/c1": "String", "/versions/11/tables/0/rows/3/c2": "The name of the source prepared statement (an empty string selects the unnamed prepared statement).", "/versions/11/tables/0/rows/4/c2": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters.", "/versions/11/tables/0/rows/5/c2": "The parameter format codes. Each must presently be zero (text) or one (binary).", "/versions/11/tables/0/rows/6/c2": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query.", "/versions/11/tables/0/rows/7/c2": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case.", "/versions/11/tables/0/rows/8/c1": "Byte n", "/versions/11/tables/0/rows/8/c2": "The value of the parameter, in the format indicated by the associated format code. n is the above length.", "/versions/11/tables/0/rows/9/c2": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query.", "/versions/11/tables/0/rows/10/c2": "The result-column format codes. Each must presently be zero (text) or one (binary).", "/versions/11/sections/0/paragraphs/0": "The complete definition below retains repetition, counts and conditional fields. A numbered table row is a documented field definition, not a fixed byte offset. Integer encodings and flow rules follow the same-version protocol chapter.", "/versions/11/tables/0/columns/0/label": "Position", "/versions/11/tables/0/columns/1/label": "Format", "/versions/11/tables/0/columns/2/label": "Meaning"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "5d479fe7ce67aaf53b78396df5d0d0c0c5c1f90bff29159b0ed06210bc854ddc"}, "comparison_data": {"fields": [{"format": "Byte1('B')", "description": "Identifies the message as a Bind command."}, {"format": "Int32", "description": "Length of message contents in bytes, including self."}, {"format": "String", "description": "The name of the destination portal (an empty string selects the unnamed portal)."}, {"format": "String", "description": "The name of the source prepared statement (an empty string selects the unnamed prepared statement)."}, {"format": "Int16", "description": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters."}, {"format": "Int16[ C ]", "description": "The parameter format codes. Each must presently be zero (text) or one (binary)."}, {"format": "Int16", "description": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query."}, {"format": "Int32", "description": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case."}, {"format": "Byte n", "description": "The value of the parameter, in the format indicated by the associated format code. n is the above length."}, {"format": "Int16", "description": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query."}, {"format": "Int16[ R ]", "description": "The result-column format codes. Each must presently be zero (text) or one (binary)."}], "direction": "F"}, "comparison_hash": "c8b0c2d1702e2be51f0c868a6594754e9fee7debc6c10c6dab9aee46235c1a22", "manual_language": "zh"}, "12": {"facts": [{"label": "\u65b9\u5411", "value": "\u524d\u7aef \u2192 \u540e\u7aef"}, {"label": "\u9996\u4e2a\u7ebf\u4e0a\u534f\u8bae\u5b57\u6bb5", "value": "Byte1('B')"}, {"label": "\u5b57\u6bb5\u6761\u76ee", "value": "11"}, {"label": "\u624b\u518c\u4e2d\u7684\u4ea4\u4e92\u9636\u6bb5", "value": "\u6269\u5c55\u67e5\u8be2\uff1b\u51fd\u6570\u8c03\u7528"}], "fields": [{"format": "Byte1('B')", "description": "Identifies the message as a Bind command."}, {"format": "Int32", "description": "Length of message contents in bytes, including self."}, {"format": "String", "description": "The name of the destination portal (an empty string selects the unnamed portal)."}, {"format": "String", "description": "The name of the source prepared statement (an empty string selects the unnamed prepared statement)."}, {"format": "Int16", "description": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters."}, {"format": "Int16[ C ]", "description": "The parameter format codes. Each must presently be zero (text) or one (binary)."}, {"format": "Int16", "description": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query."}, {"format": "Int32", "description": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case."}, {"format": "Byte n", "description": "The value of the parameter, in the format indicated by the associated format code. n is the above length."}, {"format": "Int16", "description": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query."}, {"format": "Int16[ R ]", "description": "The result-column format codes. Each must presently be zero (text) or one (binary)."}], "tables": [{"key": "fields", "rows": [{"c0": "1", "c1": "Byte1('B')", "c2": "\u5c06\u8be5\u6d88\u606f\u6807\u8bc6\u4e3a Bind \u547d\u4ee4\u3002"}, {"c0": "2", "c1": "Int32", "c2": "\u6d88\u606f\u5185\u5bb9\u7684\u957f\u5ea6\uff08\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff09\uff0c\u5305\u62ec\u5176\u81ea\u8eab\u3002"}, {"c0": "3", "c1": "\u5b57\u7b26\u4e32", "c2": "\u76ee\u6807 portal \u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684 portal\uff09\u3002"}, {"c0": "4", "c1": "\u5b57\u7b26\u4e32", "c2": "\u6e90\u9884\u5907\u8bed\u53e5\u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684\u9884\u5907\u8bed\u53e5\uff09\u3002"}, {"c0": "5", "c1": "Int16", "c2": "\u540e\u7eed\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 C \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u53c2\u6570\uff0c\u6216\u8005\u6240\u6709\u53c2\u6570\u90fd\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u53c2\u6570\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u5b9e\u9645\u53c2\u6570\u6570\u91cf\u3002"}, {"c0": "6", "c1": "Int16[ C ]", "c2": "\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002"}, {"c0": "7", "c1": "Int16", "c2": "\u540e\u7eed\u53c2\u6570\u503c\u7684\u6570\u91cf\uff08\u53ef\u4ee5\u4e3a\u96f6\uff09\u3002\u5fc5\u987b\u4e0e\u67e5\u8be2\u6240\u9700\u7684\u53c2\u6570\u6570\u91cf\u4e00\u81f4\u3002"}, {"c0": "8", "c1": "Int32", "c2": "\u53c2\u6570\u503c\u7684\u957f\u5ea6\uff0c\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff08\u4e0d\u5305\u62ec\u6b64\u957f\u5ea6\u5b57\u6bb5\u672c\u8eab\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\u3002\u7279\u6b8a\u503c -1 \u8868\u793a NULL \u53c2\u6570\u503c\u3002\u4e3a NULL \u65f6\uff0c\u540e\u9762\u4e0d\u518d\u6709\u503c\u7684\u5b57\u8282\u3002"}, {"c0": "9", "c1": "Byte n", "c2": "\u53c2\u6570\u503c\uff0c\u683c\u5f0f\u7531\u5bf9\u5e94\u7684\u683c\u5f0f\u4ee3\u7801\u6307\u660e\u3002 n \u4e3a\u4e0a\u8ff0\u957f\u5ea6\u3002"}, {"c0": "10", "c1": "Int16", "c2": "\u540e\u7eed\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 R \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u7ed3\u679c\u5217\uff0c\u6216\u8005\u6240\u6709\u7ed3\u679c\u5217\u90fd\u5e94\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u7ed3\u679c\u5217\uff08\u5982\u679c\u6709\uff09\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u67e5\u8be2\u5b9e\u9645\u7684\u7ed3\u679c\u5217\u6570\u91cf\u3002"}, {"c0": "11", "c1": "Int16[ R ]", "c2": "\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002"}], "title": "\u6309\u624b\u518c\u987a\u5e8f\u6392\u5217\u7684\u7ebf\u4e0a\u534f\u8bae\u5b57\u6bb5", "columns": [{"key": "c0", "label": "\u4f4d\u7f6e"}, {"key": "c1", "label": "\u683c\u5f0f"}, {"key": "c2", "label": "\u542b\u4e49"}]}], "related": [{"url": 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"\u6d88\u606f\u8fb9\u754c\u4e0e\u91cd\u590d\u5b57\u6bb5", "paragraphs": ["\u4e0b\u65b9\u5b8c\u6574\u5b9a\u4e49\u4fdd\u7559\u91cd\u590d\u9879\u3001\u8ba1\u6570\u4e0e\u6761\u4ef6\u5b57\u6bb5\u3002\u8868\u683c\u884c\u53f7\u8868\u793a\u6587\u6863\u4e2d\u7684\u5b57\u6bb5\u5b9a\u4e49\uff0c\u5e76\u975e\u56fa\u5b9a\u5b57\u8282\u504f\u79fb\u91cf\u3002\u6574\u6570\u7f16\u7801\u4e0e\u4ea4\u4e92\u6d41\u7a0b\u4ee5\u540c\u7248\u672c\u534f\u8bae\u7ae0\u8282\u4e3a\u51c6\u3002"]}], "direction": "F", "signature": "Bind (F)", "description": ["Bind \u662f\u524d\u7aef\u534f\u8bae\u6d88\u606f\uff0c\u8868\u793a Bind \u547d\u4ee4\u3002"], "manual_html": "
\n
\n
\n
Byte1('B')
\n
\n

\n

\u5c06\u8be5\u6d88\u606f\u6807\u8bc6\u4e3a Bind \u547d\u4ee4\u3002

\n

\n
\n
Int32
\n
\n

\n

\u6d88\u606f\u5185\u5bb9\u7684\u957f\u5ea6\uff08\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff09\uff0c\u5305\u62ec\u5176\u81ea\u8eab\u3002

\n

\n
\n
\u5b57\u7b26\u4e32
\n
\n

\n

\u76ee\u6807 portal \u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684 portal\uff09\u3002

\n

\n
\n
\u5b57\u7b26\u4e32
\n
\n

\n

\u6e90\u9884\u5907\u8bed\u53e5\u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684\u9884\u5907\u8bed\u53e5\uff09\u3002

\n

\n
\n
Int16
\n
\n

\n

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\n

\n
\n
Int16[C]
\n
\n

\n

\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002

\n

\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u53c2\u6570\u503c\u7684\u6570\u91cf\uff08\u53ef\u4ee5\u4e3a\u96f6\uff09\u3002\u5fc5\u987b\u4e0e\u67e5\u8be2\u6240\u9700\u7684\u53c2\u6570\u6570\u91cf\u4e00\u81f4\u3002

\n

\n
\n
\n
\n

\u63a5\u4e0b\u6765\uff0c\u6bcf\u4e2a\u53c2\u6570\u90fd\u6709\u4ee5\u4e0b\u4e00\u5bf9\u5b57\u6bb5\uff1a

\n
\n
\n
Int32
\n
\n

\n

\u53c2\u6570\u503c\u7684\u957f\u5ea6\uff0c\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff08\u4e0d\u5305\u62ec\u6b64\u957f\u5ea6\u5b57\u6bb5\u672c\u8eab\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\u3002\u7279\u6b8a\u503c -1 \u8868\u793a NULL \u53c2\u6570\u503c\u3002\u4e3a NULL \u65f6\uff0c\u540e\u9762\u4e0d\u518d\u6709\u503c\u7684\u5b57\u8282\u3002

\n

\n
\n
Byte n
\n
\n

\n

\u53c2\u6570\u503c\uff0c\u683c\u5f0f\u7531\u5bf9\u5e94\u7684\u683c\u5f0f\u4ee3\u7801\u6307\u660e\u3002n \u4e3a\u4e0a\u8ff0\u957f\u5ea6\u3002

\n

\n
\n
\n
\n

\u6700\u540e\u4e00\u4e2a\u53c2\u6570\u4e4b\u540e\u662f\u4ee5\u4e0b\u5b57\u6bb5\uff1a

\n
\n
\n
Int16
\n
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\n
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Int16[R]
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\n

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\n

\n
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Identifies the message as a Bind command.", "/versions/12/facts/0/label": "Direction", "/versions/12/facts/0/value": "Frontend \u2192 backend", "/versions/12/facts/1/label": "First wire field", "/versions/12/facts/2/label": "Field entries", "/versions/12/facts/3/label": "Documented flow contexts", "/versions/12/facts/3/value": "Extended Query; Function Call", "/versions/12/tables/0/title": "Wire fields in documented order", "/versions/12/related/0/label": "Protocol flow and exchange examples", "/versions/12/related/1/label": "Protocol overview", "/versions/12/related/2/label": "Extended Query", "/versions/12/related/3/label": "Function Call", "/versions/12/sections/0/title": "Framing and repetition", "/versions/12/tables/0/rows/0/c2": "Identifies the message as a Bind command.", "/versions/12/tables/0/rows/1/c2": "Length of message contents in bytes, including self.", "/versions/12/tables/0/rows/2/c1": "String", "/versions/12/tables/0/rows/2/c2": "The name of the destination portal (an empty string selects the unnamed portal).", "/versions/12/tables/0/rows/3/c1": "String", "/versions/12/tables/0/rows/3/c2": "The name of the source prepared statement (an empty string selects the unnamed prepared statement).", "/versions/12/tables/0/rows/4/c2": "The number of parameter format codes that follow (denoted C below). 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\u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u53c2\u6570\uff0c\u6216\u8005\u6240\u6709\u53c2\u6570\u90fd\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u53c2\u6570\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u5b9e\u9645\u53c2\u6570\u6570\u91cf\u3002"}, {"c0": "6", "c1": "Int16[ C ]", "c2": "\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002"}, {"c0": "7", "c1": "Int16", "c2": "\u540e\u7eed\u53c2\u6570\u503c\u7684\u6570\u91cf\uff08\u53ef\u4ee5\u4e3a\u96f6\uff09\u3002\u5fc5\u987b\u4e0e\u67e5\u8be2\u6240\u9700\u7684\u53c2\u6570\u6570\u91cf\u4e00\u81f4\u3002"}, {"c0": "8", "c1": "Int32", "c2": "\u53c2\u6570\u503c\u7684\u957f\u5ea6\uff0c\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff08\u4e0d\u5305\u62ec\u6b64\u957f\u5ea6\u5b57\u6bb5\u672c\u8eab\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\u3002\u7279\u6b8a\u503c -1 \u8868\u793a NULL \u53c2\u6570\u503c\u3002\u4e3a NULL \u65f6\uff0c\u540e\u9762\u4e0d\u518d\u6709\u503c\u7684\u5b57\u8282\u3002"}, {"c0": "9", "c1": "Byte n", "c2": "\u53c2\u6570\u503c\uff0c\u683c\u5f0f\u7531\u5bf9\u5e94\u7684\u683c\u5f0f\u4ee3\u7801\u6307\u660e\u3002 n \u4e3a\u4e0a\u8ff0\u957f\u5ea6\u3002"}, {"c0": "10", "c1": "Int16", "c2": "\u540e\u7eed\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 R \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u7ed3\u679c\u5217\uff0c\u6216\u8005\u6240\u6709\u7ed3\u679c\u5217\u90fd\u5e94\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u7ed3\u679c\u5217\uff08\u5982\u679c\u6709\uff09\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u67e5\u8be2\u5b9e\u9645\u7684\u7ed3\u679c\u5217\u6570\u91cf\u3002"}, {"c0": "11", "c1": "Int16[ R ]", "c2": "\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002"}], "title": "\u6309\u624b\u518c\u987a\u5e8f\u6392\u5217\u7684\u7ebf\u4e0a\u534f\u8bae\u5b57\u6bb5", "columns": [{"key": "c0", "label": "\u4f4d\u7f6e"}, {"key": "c1", "label": "\u683c\u5f0f"}, {"key": "c2", "label": "\u542b\u4e49"}]}], "related": [{"url": 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"\u6d88\u606f\u8fb9\u754c\u4e0e\u91cd\u590d\u5b57\u6bb5", "paragraphs": ["\u4e0b\u65b9\u5b8c\u6574\u5b9a\u4e49\u4fdd\u7559\u91cd\u590d\u9879\u3001\u8ba1\u6570\u4e0e\u6761\u4ef6\u5b57\u6bb5\u3002\u8868\u683c\u884c\u53f7\u8868\u793a\u6587\u6863\u4e2d\u7684\u5b57\u6bb5\u5b9a\u4e49\uff0c\u5e76\u975e\u56fa\u5b9a\u5b57\u8282\u504f\u79fb\u91cf\u3002\u6574\u6570\u7f16\u7801\u4e0e\u4ea4\u4e92\u6d41\u7a0b\u4ee5\u540c\u7248\u672c\u534f\u8bae\u7ae0\u8282\u4e3a\u51c6\u3002"]}], "direction": "F", "signature": "Bind (F)", "description": ["Bind \u662f\u524d\u7aef\u534f\u8bae\u6d88\u606f\uff0c\u8868\u793a Bind \u547d\u4ee4\u3002"], "manual_html": "
\n
\n
\n
Byte1('B')
\n
\n

\n

\u5c06\u8be5\u6d88\u606f\u6807\u8bc6\u4e3a Bind \u547d\u4ee4\u3002

\n

\n
\n
Int32
\n
\n

\n

\u6d88\u606f\u5185\u5bb9\u7684\u957f\u5ea6\uff08\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff09\uff0c\u5305\u62ec\u5176\u81ea\u8eab\u3002

\n

\n
\n
\u5b57\u7b26\u4e32
\n
\n

\n

\u76ee\u6807 portal \u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684 portal\uff09\u3002

\n

\n
\n
\u5b57\u7b26\u4e32
\n
\n

\n

\u6e90\u9884\u5907\u8bed\u53e5\u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684\u9884\u5907\u8bed\u53e5\uff09\u3002

\n

\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 C \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u53c2\u6570\uff0c\u6216\u8005\u6240\u6709\u53c2\u6570\u90fd\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u53c2\u6570\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u5b9e\u9645\u53c2\u6570\u6570\u91cf\u3002

\n

\n
\n
Int16[C]
\n
\n

\n

\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002

\n

\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u53c2\u6570\u503c\u7684\u6570\u91cf\uff08\u53ef\u4ee5\u4e3a\u96f6\uff09\u3002\u5fc5\u987b\u4e0e\u67e5\u8be2\u6240\u9700\u7684\u53c2\u6570\u6570\u91cf\u4e00\u81f4\u3002

\n

\n
\n
\n
\n

\u63a5\u4e0b\u6765\uff0c\u6bcf\u4e2a\u53c2\u6570\u90fd\u6709\u4ee5\u4e0b\u4e00\u5bf9\u5b57\u6bb5\uff1a

\n
\n
\n
Int32
\n
\n

\n

\u53c2\u6570\u503c\u7684\u957f\u5ea6\uff0c\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff08\u4e0d\u5305\u62ec\u6b64\u957f\u5ea6\u5b57\u6bb5\u672c\u8eab\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\u3002\u7279\u6b8a\u503c -1 \u8868\u793a NULL \u53c2\u6570\u503c\u3002\u4e3a NULL \u65f6\uff0c\u540e\u9762\u4e0d\u518d\u6709\u503c\u7684\u5b57\u8282\u3002

\n

\n
\n
Byte n
\n
\n

\n

\u53c2\u6570\u503c\uff0c\u683c\u5f0f\u7531\u5bf9\u5e94\u7684\u683c\u5f0f\u4ee3\u7801\u6307\u660e\u3002n \u4e3a\u4e0a\u8ff0\u957f\u5ea6\u3002

\n

\n
\n
\n
\n

\u6700\u540e\u4e00\u4e2a\u53c2\u6570\u4e4b\u540e\u662f\u4ee5\u4e0b\u5b57\u6bb5\uff1a

\n
\n
\n
Int16
\n
\n

\n

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\n

\n
\n
Int16[R]
\n
\n

\n

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\n

\n
\n
\n
\n
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Identifies the message as a Bind command.", "/versions/13/facts/0/label": "Direction", "/versions/13/facts/0/value": "Frontend \u2192 backend", "/versions/13/facts/1/label": "First wire field", "/versions/13/facts/2/label": "Field entries", "/versions/13/facts/3/label": "Documented flow contexts", "/versions/13/facts/3/value": "Extended Query; Function Call", "/versions/13/tables/0/title": "Wire fields in documented order", "/versions/13/related/0/label": "Protocol flow and exchange examples", "/versions/13/related/1/label": "Protocol overview", "/versions/13/related/2/label": "Extended Query", "/versions/13/related/3/label": "Function Call", "/versions/13/sections/0/title": "Framing and repetition", "/versions/13/tables/0/rows/0/c2": "Identifies the message as a Bind command.", "/versions/13/tables/0/rows/1/c2": "Length of message contents in bytes, including self.", "/versions/13/tables/0/rows/2/c1": "String", "/versions/13/tables/0/rows/2/c2": "The name of the destination portal (an empty string selects the unnamed portal).", "/versions/13/tables/0/rows/3/c1": "String", "/versions/13/tables/0/rows/3/c2": "The name of the source prepared statement (an empty string selects the unnamed prepared statement).", "/versions/13/tables/0/rows/4/c2": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters.", "/versions/13/tables/0/rows/5/c2": "The parameter format codes. Each must presently be zero (text) or one (binary).", "/versions/13/tables/0/rows/6/c2": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query.", "/versions/13/tables/0/rows/7/c2": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case.", "/versions/13/tables/0/rows/8/c1": "Byte n", "/versions/13/tables/0/rows/8/c2": "The value of the parameter, in the format indicated by the associated format code. n is the above length.", "/versions/13/tables/0/rows/9/c2": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query.", "/versions/13/tables/0/rows/10/c2": "The result-column format codes. Each must presently be zero (text) or one (binary).", "/versions/13/sections/0/paragraphs/0": "The complete definition below retains repetition, counts and conditional fields. A numbered table row is a documented field definition, not a fixed byte offset. Integer encodings and flow rules follow the same-version protocol chapter.", "/versions/13/tables/0/columns/0/label": "Position", "/versions/13/tables/0/columns/1/label": "Format", "/versions/13/tables/0/columns/2/label": "Meaning"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "456ea1de20714d668e93b0972a5874f37c2df9bf6676213b4b003585bcd57a3b"}, "comparison_data": {"fields": [{"format": "Byte1('B')", "description": "Identifies the message as a Bind command."}, {"format": "Int32", "description": "Length of message contents in bytes, including self."}, {"format": "String", "description": "The name of the destination portal (an empty string selects the unnamed portal)."}, {"format": "String", "description": "The name of the source prepared statement (an empty string selects the unnamed prepared statement)."}, {"format": "Int16", "description": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters."}, {"format": "Int16[ C ]", "description": "The parameter format codes. Each must presently be zero (text) or one (binary)."}, {"format": "Int16", "description": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query."}, {"format": "Int32", "description": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case."}, {"format": "Byte n", "description": "The value of the parameter, in the format indicated by the associated format code. n is the above length."}, {"format": "Int16", "description": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query."}, {"format": "Int16[ R ]", "description": "The result-column format codes. Each must presently be zero (text) or one (binary)."}], "direction": "F"}, "comparison_hash": "c8b0c2d1702e2be51f0c868a6594754e9fee7debc6c10c6dab9aee46235c1a22", "manual_language": "zh"}, "14": {"facts": [{"label": "\u65b9\u5411", "value": "\u524d\u7aef \u2192 \u540e\u7aef"}, {"label": "\u9996\u4e2a\u7ebf\u4e0a\u534f\u8bae\u5b57\u6bb5", "value": "Byte1('B')"}, {"label": "\u5b57\u6bb5\u6761\u76ee", "value": "11"}, {"label": "\u624b\u518c\u4e2d\u7684\u4ea4\u4e92\u9636\u6bb5", "value": "\u6269\u5c55\u67e5\u8be2\uff1b\u51fd\u6570\u8c03\u7528"}], "fields": [{"format": "Byte1('B')", "description": "Identifies the message as a Bind command."}, {"format": "Int32", "description": "Length of message contents in bytes, including self."}, {"format": "String", "description": "The name of the destination portal (an empty string selects the unnamed portal)."}, {"format": "String", "description": "The name of the source prepared statement (an empty string selects the unnamed prepared statement)."}, {"format": "Int16", "description": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters."}, {"format": "Int16[ C ]", "description": "The parameter format codes. Each must presently be zero (text) or one (binary)."}, {"format": "Int16", "description": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query."}, {"format": "Int32", "description": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. 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Each must presently be zero (text) or one (binary)."}], "tables": [{"key": "fields", "rows": [{"c0": "1", "c1": "Byte1('B')", "c2": "\u5c06\u8be5\u6d88\u606f\u6807\u8bc6\u4e3a Bind \u547d\u4ee4\u3002"}, {"c0": "2", "c1": "Int32", "c2": "\u6d88\u606f\u5185\u5bb9\u7684\u957f\u5ea6\uff08\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff09\uff0c\u5305\u62ec\u5176\u81ea\u8eab\u3002"}, {"c0": "3", "c1": "\u5b57\u7b26\u4e32", "c2": "\u76ee\u6807 portal \u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684 portal\uff09\u3002"}, {"c0": "4", "c1": "\u5b57\u7b26\u4e32", "c2": "\u6e90\u9884\u5907\u8bed\u53e5\u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684\u9884\u5907\u8bed\u53e5\uff09\u3002"}, {"c0": "5", "c1": "Int16", "c2": "\u540e\u7eed\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 C \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u53c2\u6570\uff0c\u6216\u8005\u6240\u6709\u53c2\u6570\u90fd\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u53c2\u6570\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u5b9e\u9645\u53c2\u6570\u6570\u91cf\u3002"}, {"c0": "6", "c1": "Int16[ C ]", "c2": "\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002"}, {"c0": "7", "c1": "Int16", "c2": "\u540e\u7eed\u53c2\u6570\u503c\u7684\u6570\u91cf\uff08\u53ef\u4ee5\u4e3a\u96f6\uff09\u3002\u5fc5\u987b\u4e0e\u67e5\u8be2\u6240\u9700\u7684\u53c2\u6570\u6570\u91cf\u4e00\u81f4\u3002"}, {"c0": "8", "c1": "Int32", "c2": "\u53c2\u6570\u503c\u7684\u957f\u5ea6\uff0c\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff08\u4e0d\u5305\u62ec\u6b64\u957f\u5ea6\u5b57\u6bb5\u672c\u8eab\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\u3002\u7279\u6b8a\u503c -1 \u8868\u793a NULL \u53c2\u6570\u503c\u3002\u4e3a NULL \u65f6\uff0c\u540e\u9762\u4e0d\u518d\u6709\u503c\u7684\u5b57\u8282\u3002"}, {"c0": "9", "c1": "Byte n", "c2": "\u53c2\u6570\u503c\uff0c\u683c\u5f0f\u7531\u5bf9\u5e94\u7684\u683c\u5f0f\u4ee3\u7801\u6307\u660e\u3002 n \u4e3a\u4e0a\u8ff0\u957f\u5ea6\u3002"}, {"c0": "10", "c1": "Int16", "c2": "\u540e\u7eed\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 R \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u7ed3\u679c\u5217\uff0c\u6216\u8005\u6240\u6709\u7ed3\u679c\u5217\u90fd\u5e94\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u7ed3\u679c\u5217\uff08\u5982\u679c\u6709\uff09\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u67e5\u8be2\u5b9e\u9645\u7684\u7ed3\u679c\u5217\u6570\u91cf\u3002"}, {"c0": "11", "c1": "Int16[ R ]", "c2": "\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002"}], "title": "\u6309\u624b\u518c\u987a\u5e8f\u6392\u5217\u7684\u7ebf\u4e0a\u534f\u8bae\u5b57\u6bb5", "columns": [{"key": "c0", "label": "\u4f4d\u7f6e"}, {"key": "c1", "label": "\u683c\u5f0f"}, {"key": "c2", "label": "\u542b\u4e49"}]}], "related": [{"url": "/docs/14/protocol-flow.html", "label": "\u534f\u8bae\u6d41\u7a0b\u4e0e\u4ea4\u4e92\u793a\u4f8b"}, {"url": "/docs/14/protocol-overview.html", "label": "\u534f\u8bae\u6982\u8ff0"}, {"url": "/docs/14/protocol-flow.html#PROTOCOL-FLOW-EXT-QUERY", "label": "\u6269\u5c55\u67e5\u8be2"}, {"url": "/docs/14/protocol-flow.html#id-1.10.5.7.7", "label": "\u51fd\u6570\u8c03\u7528"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v14.24/postgresql-14.24.tar.bz2", "label": "14.24", "major": "14", "channel": "stable", "revision": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"}, "sources": [{"url": "https://pg.center/docs/14/protocol-message-formats.html#PROTOCOL-MESSAGE-FORMATS", "path": "protocol-message-formats.html", "label": "PostgreSQL 14 English manual", "sha256": "250fd6a2529964948260a546f72931e259885bb222b62c3bdbf5ab402b72987b", "language": "en", "original_url": "/docs/14/protocol-message-formats.html#PROTOCOL-MESSAGE-FORMATS"}], "sections": [{"title": "\u6d88\u606f\u8fb9\u754c\u4e0e\u91cd\u590d\u5b57\u6bb5", "paragraphs": ["\u4e0b\u65b9\u5b8c\u6574\u5b9a\u4e49\u4fdd\u7559\u91cd\u590d\u9879\u3001\u8ba1\u6570\u4e0e\u6761\u4ef6\u5b57\u6bb5\u3002\u8868\u683c\u884c\u53f7\u8868\u793a\u6587\u6863\u4e2d\u7684\u5b57\u6bb5\u5b9a\u4e49\uff0c\u5e76\u975e\u56fa\u5b9a\u5b57\u8282\u504f\u79fb\u91cf\u3002\u6574\u6570\u7f16\u7801\u4e0e\u4ea4\u4e92\u6d41\u7a0b\u4ee5\u540c\u7248\u672c\u534f\u8bae\u7ae0\u8282\u4e3a\u51c6\u3002"]}], "direction": "F", "signature": "Bind (F)", "description": ["Bind \u662f\u524d\u7aef\u534f\u8bae\u6d88\u606f\uff0c\u8868\u793a Bind \u547d\u4ee4\u3002"], "manual_html": "
\n
\n
\n
Byte1('B')
\n
\n

\n

\u5c06\u8be5\u6d88\u606f\u6807\u8bc6\u4e3a Bind \u547d\u4ee4\u3002

\n

\n
\n
Int32
\n
\n

\n

\u6d88\u606f\u5185\u5bb9\u7684\u957f\u5ea6\uff08\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff09\uff0c\u5305\u62ec\u5176\u81ea\u8eab\u3002

\n

\n
\n
\u5b57\u7b26\u4e32
\n
\n

\n

\u76ee\u6807 portal \u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684 portal\uff09\u3002

\n

\n
\n
\u5b57\u7b26\u4e32
\n
\n

\n

\u6e90\u9884\u5907\u8bed\u53e5\u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684\u9884\u5907\u8bed\u53e5\uff09\u3002

\n

\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 C \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u53c2\u6570\uff0c\u6216\u8005\u6240\u6709\u53c2\u6570\u90fd\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u53c2\u6570\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u5b9e\u9645\u53c2\u6570\u6570\u91cf\u3002

\n

\n
\n
Int16[C]
\n
\n

\n

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\n

\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u53c2\u6570\u503c\u7684\u6570\u91cf\uff08\u53ef\u4ee5\u4e3a\u96f6\uff09\u3002\u5fc5\u987b\u4e0e\u67e5\u8be2\u6240\u9700\u7684\u53c2\u6570\u6570\u91cf\u4e00\u81f4\u3002

\n

\n
\n
\n
\n

\u63a5\u4e0b\u6765\uff0c\u6bcf\u4e2a\u53c2\u6570\u90fd\u6709\u4ee5\u4e0b\u4e00\u5bf9\u5b57\u6bb5\uff1a

\n
\n
\n
Int32
\n
\n

\n

\u53c2\u6570\u503c\u7684\u957f\u5ea6\uff0c\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff08\u4e0d\u5305\u62ec\u6b64\u957f\u5ea6\u5b57\u6bb5\u672c\u8eab\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\u3002\u7279\u6b8a\u503c -1 \u8868\u793a NULL \u53c2\u6570\u503c\u3002\u4e3a NULL \u65f6\uff0c\u540e\u9762\u4e0d\u518d\u6709\u503c\u7684\u5b57\u8282\u3002

\n

\n
\n
Byte n
\n
\n

\n

\u53c2\u6570\u503c\uff0c\u683c\u5f0f\u7531\u5bf9\u5e94\u7684\u683c\u5f0f\u4ee3\u7801\u6307\u660e\u3002n \u4e3a\u4e0a\u8ff0\u957f\u5ea6\u3002

\n

\n
\n
\n
\n

\u6700\u540e\u4e00\u4e2a\u53c2\u6570\u4e4b\u540e\u662f\u4ee5\u4e0b\u5b57\u6bb5\uff1a

\n
\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 R \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u7ed3\u679c\u5217\uff0c\u6216\u8005\u6240\u6709\u7ed3\u679c\u5217\u90fd\u5e94\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u7ed3\u679c\u5217\uff08\u5982\u679c\u6709\uff09\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u67e5\u8be2\u5b9e\u9645\u7684\u7ed3\u679c\u5217\u6570\u91cf\u3002

\n

\n
\n
Int16[R]
\n
\n

\n

\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002

\n

\n
\n
\n
\n
", "manual_path": "/docs/14/protocol-message-formats.html", "localization": {"status": "complete", "sources": [{"url": "/docs/14/datatype-json.html", "method": "same-major semantic node", "sha256": "6caaf22252a97833322c667923644122c2e880284c9f623b4ccbad4929b6ce66", "language": "zh", "matched_nodes": ["#DATATYPE-JSON/div[19]/pre[27]/em[4]/code[0]"]}, {"url": "/docs/14/protocol-message-formats.html", "method": "same-major semantic node", "sha256": "a125a259c8ea8299be50b5d5d8241c513d8b38df4c6f16cf53b7949a63e2f8aa", "language": "zh", "matched_nodes": ["#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[1]/div[0]/dl[0]/dd[3]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[25]/div[0]/dl[0]/dd[11]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[25]/div[0]/dl[0]/dd[13]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[25]/div[0]/dl[0]/dd[1]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[25]/div[0]/dl[0]/dd[5]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[25]/div[0]/dl[0]/dd[7]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[25]/div[0]/dl[0]/dd[9]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[25]/div[2]/dl[0]/dd[1]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[25]/div[2]/dl[0]/dd[3]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[25]/div[4]/dl[0]/dd[1]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[25]/div[4]/dl[0]/dd[3]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[25]/p[1]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[25]/p[3]"]}], "language": "zh", "original_text": {"/versions/14/description/0": "Bind is a frontend protocol message. Identifies the message as a Bind command.", "/versions/14/facts/0/label": "Direction", "/versions/14/facts/0/value": "Frontend \u2192 backend", "/versions/14/facts/1/label": "First wire field", "/versions/14/facts/2/label": "Field entries", "/versions/14/facts/3/label": "Documented flow contexts", "/versions/14/facts/3/value": "Extended Query; Function Call", "/versions/14/tables/0/title": "Wire fields in documented order", "/versions/14/related/0/label": "Protocol flow and exchange examples", "/versions/14/related/1/label": "Protocol overview", "/versions/14/related/2/label": "Extended Query", "/versions/14/related/3/label": "Function Call", "/versions/14/sections/0/title": "Framing and repetition", "/versions/14/tables/0/rows/0/c2": "Identifies the message as a Bind command.", "/versions/14/tables/0/rows/1/c2": "Length of message contents in bytes, including self.", "/versions/14/tables/0/rows/2/c1": "String", "/versions/14/tables/0/rows/2/c2": "The name of the destination portal (an empty string selects the unnamed portal).", "/versions/14/tables/0/rows/3/c1": "String", "/versions/14/tables/0/rows/3/c2": "The name of the source prepared statement (an empty string selects the unnamed prepared statement).", "/versions/14/tables/0/rows/4/c2": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters.", "/versions/14/tables/0/rows/5/c2": "The parameter format codes. Each must presently be zero (text) or one (binary).", "/versions/14/tables/0/rows/6/c2": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query.", "/versions/14/tables/0/rows/7/c2": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case.", "/versions/14/tables/0/rows/8/c1": "Byte n", "/versions/14/tables/0/rows/8/c2": "The value of the parameter, in the format indicated by the associated format code. n is the above length.", "/versions/14/tables/0/rows/9/c2": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query.", "/versions/14/tables/0/rows/10/c2": "The result-column format codes. Each must presently be zero (text) or one (binary).", "/versions/14/sections/0/paragraphs/0": "The complete definition below retains repetition, counts and conditional fields. A numbered table row is a documented field definition, not a fixed byte offset. Integer encodings and flow rules follow the same-version protocol chapter.", "/versions/14/tables/0/columns/0/label": "Position", "/versions/14/tables/0/columns/1/label": "Format", "/versions/14/tables/0/columns/2/label": "Meaning"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "ece5b9743e6171479c630d166370f7cb43934c56f5361c6bb2482d0c53e3bae5"}, "comparison_data": {"fields": [{"format": "Byte1('B')", "description": "Identifies the message as a Bind command."}, {"format": "Int32", "description": "Length of message contents in bytes, including self."}, {"format": "String", "description": "The name of the destination portal (an empty string selects the unnamed portal)."}, {"format": "String", "description": "The name of the source prepared statement (an empty string selects the unnamed prepared statement)."}, {"format": "Int16", "description": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters."}, {"format": "Int16[ C ]", "description": "The parameter format codes. Each must presently be zero (text) or one (binary)."}, {"format": "Int16", "description": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query."}, {"format": "Int32", "description": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case."}, {"format": "Byte n", "description": "The value of the parameter, in the format indicated by the associated format code. n is the above length."}, {"format": "Int16", "description": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query."}, {"format": "Int16[ R ]", "description": "The result-column format codes. Each must presently be zero (text) or one (binary)."}], "direction": "F"}, "comparison_hash": "c8b0c2d1702e2be51f0c868a6594754e9fee7debc6c10c6dab9aee46235c1a22", "manual_language": "zh"}, "15": {"facts": [{"label": "\u65b9\u5411", "value": "\u524d\u7aef \u2192 \u540e\u7aef"}, {"label": "\u9996\u4e2a\u7ebf\u4e0a\u534f\u8bae\u5b57\u6bb5", "value": "Byte1('B')"}, {"label": "\u5b57\u6bb5\u6761\u76ee", "value": "11"}, {"label": "\u624b\u518c\u4e2d\u7684\u4ea4\u4e92\u9636\u6bb5", "value": "\u6269\u5c55\u67e5\u8be2\uff1b\u51fd\u6570\u8c03\u7528"}], "fields": [{"format": "Byte1('B')", "description": "Identifies the message as a Bind command."}, {"format": "Int32", "description": "Length of message contents in bytes, including self."}, {"format": "String", "description": "The name of the destination portal (an empty string selects the unnamed portal)."}, {"format": "String", "description": "The name of the source prepared statement (an empty string selects the unnamed prepared statement)."}, {"format": "Int16", "description": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters."}, {"format": "Int16[ C ]", "description": "The parameter format codes. Each must presently be zero (text) or one (binary)."}, {"format": "Int16", "description": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query."}, {"format": "Int32", "description": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case."}, {"format": "Byte n", "description": "The value of the parameter, in the format indicated by the associated format code. n is the above length."}, {"format": "Int16", "description": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query."}, {"format": "Int16[ R ]", "description": "The result-column format codes. Each must presently be zero (text) or one (binary)."}], "tables": [{"key": "fields", "rows": [{"c0": "1", "c1": "Byte1('B')", "c2": "\u5c06\u8be5\u6d88\u606f\u6807\u8bc6\u4e3a Bind \u547d\u4ee4\u3002"}, {"c0": "2", "c1": "Int32", "c2": "\u6d88\u606f\u5185\u5bb9\u7684\u957f\u5ea6\uff08\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff09\uff0c\u5305\u62ec\u5176\u81ea\u8eab\u3002"}, {"c0": "3", "c1": "\u5b57\u7b26\u4e32", "c2": "\u76ee\u6807 portal \u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684 portal\uff09\u3002"}, {"c0": "4", "c1": "\u5b57\u7b26\u4e32", "c2": "\u6e90\u9884\u5907\u8bed\u53e5\u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684\u9884\u5907\u8bed\u53e5\uff09\u3002"}, {"c0": "5", "c1": "Int16", "c2": "\u540e\u7eed\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 C \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u53c2\u6570\uff0c\u6216\u8005\u6240\u6709\u53c2\u6570\u90fd\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u53c2\u6570\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u5b9e\u9645\u53c2\u6570\u6570\u91cf\u3002"}, {"c0": "6", "c1": "Int16[ C ]", "c2": "\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002"}, {"c0": "7", "c1": "Int16", "c2": "\u540e\u7eed\u53c2\u6570\u503c\u7684\u6570\u91cf\uff08\u53ef\u4ee5\u4e3a\u96f6\uff09\u3002\u5fc5\u987b\u4e0e\u67e5\u8be2\u6240\u9700\u7684\u53c2\u6570\u6570\u91cf\u4e00\u81f4\u3002"}, {"c0": "8", "c1": "Int32", "c2": "\u53c2\u6570\u503c\u7684\u957f\u5ea6\uff0c\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff08\u4e0d\u5305\u62ec\u6b64\u957f\u5ea6\u5b57\u6bb5\u672c\u8eab\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\u3002\u7279\u6b8a\u503c -1 \u8868\u793a NULL \u53c2\u6570\u503c\u3002\u4e3a NULL \u65f6\uff0c\u540e\u9762\u4e0d\u518d\u6709\u503c\u7684\u5b57\u8282\u3002"}, {"c0": "9", "c1": "Byte n", "c2": "\u53c2\u6570\u503c\uff0c\u683c\u5f0f\u7531\u5bf9\u5e94\u7684\u683c\u5f0f\u4ee3\u7801\u6307\u660e\u3002 n \u4e3a\u4e0a\u8ff0\u957f\u5ea6\u3002"}, {"c0": "10", "c1": "Int16", "c2": "\u540e\u7eed\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 R \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u7ed3\u679c\u5217\uff0c\u6216\u8005\u6240\u6709\u7ed3\u679c\u5217\u90fd\u5e94\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u7ed3\u679c\u5217\uff08\u5982\u679c\u6709\uff09\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u67e5\u8be2\u5b9e\u9645\u7684\u7ed3\u679c\u5217\u6570\u91cf\u3002"}, {"c0": "11", "c1": "Int16[ R ]", "c2": "\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002"}], "title": "\u6309\u624b\u518c\u987a\u5e8f\u6392\u5217\u7684\u7ebf\u4e0a\u534f\u8bae\u5b57\u6bb5", "columns": [{"key": "c0", "label": "\u4f4d\u7f6e"}, {"key": "c1", "label": "\u683c\u5f0f"}, {"key": "c2", "label": "\u542b\u4e49"}]}], "related": [{"url": "/docs/15/protocol-flow.html", "label": "\u534f\u8bae\u6d41\u7a0b\u4e0e\u4ea4\u4e92\u793a\u4f8b"}, {"url": "/docs/15/protocol-overview.html", "label": "\u534f\u8bae\u6982\u8ff0"}, {"url": "/docs/15/protocol-flow.html#PROTOCOL-FLOW-EXT-QUERY", "label": "\u6269\u5c55\u67e5\u8be2"}, {"url": "/docs/15/protocol-flow.html#id-1.10.6.7.7", "label": "\u51fd\u6570\u8c03\u7528"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v15.19/postgresql-15.19.tar.bz2", "label": "15.19", "major": "15", "channel": "stable", "revision": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89"}, "sources": [{"url": "https://pg.center/docs/15/protocol-message-formats.html#PROTOCOL-MESSAGE-FORMATS-BIND", "path": "protocol-message-formats.html", "label": "PostgreSQL 15 English manual", "sha256": "8c5c191eef74cd3249dabab5d6714b0f516b88c4658da4d6cce6c003bc45d919", "language": "en", "original_url": "/docs/15/protocol-message-formats.html#PROTOCOL-MESSAGE-FORMATS-BIND"}], "sections": [{"title": "\u6d88\u606f\u8fb9\u754c\u4e0e\u91cd\u590d\u5b57\u6bb5", "paragraphs": ["\u4e0b\u65b9\u5b8c\u6574\u5b9a\u4e49\u4fdd\u7559\u91cd\u590d\u9879\u3001\u8ba1\u6570\u4e0e\u6761\u4ef6\u5b57\u6bb5\u3002\u8868\u683c\u884c\u53f7\u8868\u793a\u6587\u6863\u4e2d\u7684\u5b57\u6bb5\u5b9a\u4e49\uff0c\u5e76\u975e\u56fa\u5b9a\u5b57\u8282\u504f\u79fb\u91cf\u3002\u6574\u6570\u7f16\u7801\u4e0e\u4ea4\u4e92\u6d41\u7a0b\u4ee5\u540c\u7248\u672c\u534f\u8bae\u7ae0\u8282\u4e3a\u51c6\u3002"]}], "direction": "F", "signature": "Bind (F)", "description": ["Bind \u662f\u524d\u7aef\u534f\u8bae\u6d88\u606f\uff0c\u8868\u793a Bind \u547d\u4ee4\u3002"], "manual_html": "
\n
\n
\n
Byte1('B')
\n
\n

\n

\u5c06\u8be5\u6d88\u606f\u6807\u8bc6\u4e3a Bind \u547d\u4ee4\u3002

\n

\n
\n
Int32
\n
\n

\n

\u6d88\u606f\u5185\u5bb9\u7684\u957f\u5ea6\uff08\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff09\uff0c\u5305\u62ec\u5176\u81ea\u8eab\u3002

\n

\n
\n
\u5b57\u7b26\u4e32
\n
\n

\n

\u76ee\u6807 portal \u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684 portal\uff09\u3002

\n

\n
\n
\u5b57\u7b26\u4e32
\n
\n

\n

\u6e90\u9884\u5907\u8bed\u53e5\u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684\u9884\u5907\u8bed\u53e5\uff09\u3002

\n

\n
\n
Int16
\n
\n

\n

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Int16[C]
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\n
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Int16
\n
\n

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\n

\n
\n
\n
\n

\u63a5\u4e0b\u6765\uff0c\u6bcf\u4e2a\u53c2\u6570\u90fd\u6709\u4ee5\u4e0b\u4e00\u5bf9\u5b57\u6bb5\uff1a

\n
\n
\n
Int32
\n
\n

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\n

\n
\n
Byte n
\n
\n

\n

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\n

\n
\n
\n
\n

\u6700\u540e\u4e00\u4e2a\u53c2\u6570\u4e4b\u540e\u662f\u4ee5\u4e0b\u5b57\u6bb5\uff1a

\n
\n
\n
Int16
\n
\n

\n

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\n

\n
\n
Int16[R]
\n
\n

\n

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\n

\n
\n
\n
\n
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Identifies the message as a Bind command.", "/versions/15/facts/0/label": "Direction", "/versions/15/facts/0/value": "Frontend \u2192 backend", "/versions/15/facts/1/label": "First wire field", "/versions/15/facts/2/label": "Field entries", "/versions/15/facts/3/label": "Documented flow contexts", "/versions/15/facts/3/value": "Extended Query; Function Call", "/versions/15/tables/0/title": "Wire fields in documented order", "/versions/15/related/0/label": "Protocol flow and exchange examples", "/versions/15/related/1/label": "Protocol overview", "/versions/15/related/2/label": "Extended Query", "/versions/15/related/3/label": "Function Call", "/versions/15/sections/0/title": "Framing and repetition", "/versions/15/tables/0/rows/0/c2": "Identifies the message as a Bind command.", "/versions/15/tables/0/rows/1/c2": "Length of message contents in bytes, including self.", "/versions/15/tables/0/rows/2/c1": "String", "/versions/15/tables/0/rows/2/c2": "The name of the destination portal (an empty string selects the unnamed portal).", "/versions/15/tables/0/rows/3/c1": "String", "/versions/15/tables/0/rows/3/c2": "The name of the source prepared statement (an empty string selects the unnamed prepared statement).", "/versions/15/tables/0/rows/4/c2": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters.", "/versions/15/tables/0/rows/5/c2": "The parameter format codes. Each must presently be zero (text) or one (binary).", "/versions/15/tables/0/rows/6/c2": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query.", "/versions/15/tables/0/rows/7/c2": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case.", "/versions/15/tables/0/rows/8/c1": "Byte n", "/versions/15/tables/0/rows/8/c2": "The value of the parameter, in the format indicated by the associated format code. n is the above length.", "/versions/15/tables/0/rows/9/c2": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query.", "/versions/15/tables/0/rows/10/c2": "The result-column format codes. Each must presently be zero (text) or one (binary).", "/versions/15/sections/0/paragraphs/0": "The complete definition below retains repetition, counts and conditional fields. A numbered table row is a documented field definition, not a fixed byte offset. Integer encodings and flow rules follow the same-version protocol chapter.", "/versions/15/tables/0/columns/0/label": "Position", "/versions/15/tables/0/columns/1/label": "Format", "/versions/15/tables/0/columns/2/label": "Meaning"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "ea42612eb3e8b321d9eb1b40942ea8be86b1154c9b1b82935fb7f0a6c9ee5e25"}, "comparison_data": {"fields": [{"format": "Byte1('B')", "description": "Identifies the message as a Bind command."}, {"format": "Int32", "description": "Length of message contents in bytes, including self."}, {"format": "String", "description": "The name of the destination portal (an empty string selects the unnamed portal)."}, {"format": "String", "description": "The name of the source prepared statement (an empty string selects the unnamed prepared statement)."}, {"format": "Int16", "description": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters."}, {"format": "Int16[ C ]", "description": "The parameter format codes. Each must presently be zero (text) or one (binary)."}, {"format": "Int16", "description": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query."}, {"format": "Int32", "description": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. 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\n
\n
\n
Byte1('B')
\n
\n

\n

\u5c06\u8be5\u6d88\u606f\u6807\u8bc6\u4e3a Bind \u547d\u4ee4\u3002

\n

\n
\n
Int32
\n
\n

\n

\u6d88\u606f\u5185\u5bb9\u7684\u957f\u5ea6\uff08\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff09\uff0c\u5305\u62ec\u5176\u81ea\u8eab\u3002

\n

\n
\n
\u5b57\u7b26\u4e32
\n
\n

\n

\u76ee\u6807 portal \u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684 portal\uff09\u3002

\n

\n
\n
\u5b57\u7b26\u4e32
\n
\n

\n

\u6e90\u9884\u5907\u8bed\u53e5\u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684\u9884\u5907\u8bed\u53e5\uff09\u3002

\n

\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 C \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u53c2\u6570\uff0c\u6216\u8005\u6240\u6709\u53c2\u6570\u90fd\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u53c2\u6570\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u5b9e\u9645\u53c2\u6570\u6570\u91cf\u3002

\n

\n
\n
Int16[C]
\n
\n

\n

\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002

\n

\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u53c2\u6570\u503c\u7684\u6570\u91cf\uff08\u53ef\u4ee5\u4e3a\u96f6\uff09\u3002\u5fc5\u987b\u4e0e\u67e5\u8be2\u6240\u9700\u7684\u53c2\u6570\u6570\u91cf\u4e00\u81f4\u3002

\n

\n
\n
\n
\n

\u63a5\u4e0b\u6765\uff0c\u6bcf\u4e2a\u53c2\u6570\u90fd\u6709\u4ee5\u4e0b\u4e00\u5bf9\u5b57\u6bb5\uff1a

\n
\n
\n
Int32
\n
\n

\n

\u53c2\u6570\u503c\u7684\u957f\u5ea6\uff0c\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff08\u4e0d\u5305\u62ec\u6b64\u957f\u5ea6\u5b57\u6bb5\u672c\u8eab\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\u3002\u7279\u6b8a\u503c -1 \u8868\u793a NULL \u53c2\u6570\u503c\u3002\u4e3a NULL \u65f6\uff0c\u540e\u9762\u4e0d\u518d\u6709\u503c\u7684\u5b57\u8282\u3002

\n

\n
\n
Byte n
\n
\n

\n

\u53c2\u6570\u503c\uff0c\u683c\u5f0f\u7531\u5bf9\u5e94\u7684\u683c\u5f0f\u4ee3\u7801\u6307\u660e\u3002n \u4e3a\u4e0a\u8ff0\u957f\u5ea6\u3002

\n

\n
\n
\n
\n

\u6700\u540e\u4e00\u4e2a\u53c2\u6570\u4e4b\u540e\u662f\u4ee5\u4e0b\u5b57\u6bb5\uff1a

\n
\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 R \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u7ed3\u679c\u5217\uff0c\u6216\u8005\u6240\u6709\u7ed3\u679c\u5217\u90fd\u5e94\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u7ed3\u679c\u5217\uff08\u5982\u679c\u6709\uff09\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u67e5\u8be2\u5b9e\u9645\u7684\u7ed3\u679c\u5217\u6570\u91cf\u3002

\n

\n
\n
Int16[R]
\n
\n

\n

\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002

\n

\n
\n
\n
\n
", "manual_path": "/docs/16/protocol-message-formats.html", "localization": {"status": "complete", "sources": [{"url": "/docs/16/datatype-json.html", "method": "same-major semantic node", "sha256": "4d3ca6065016169a03abc9b3a57654fda5765ebb94074fa4eb578485f6807205", "language": "zh", "matched_nodes": ["#DATATYPE-JSON/div[19]/pre[27]/em[4]/code[0]"]}, {"url": "/docs/16/protocol-message-formats.html", "method": "same-major semantic node", "sha256": "638e90eeb4ff3d56cd0c9c95e1203af6bb87aa147ec72623c9dd5eb4b9605ec3", "language": "zh", "matched_nodes": ["#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[1]/div[0]/dl[0]/dd[3]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[0]/dl[0]/dd[11]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[0]/dl[0]/dd[13]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[0]/dl[0]/dd[1]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[0]/dl[0]/dd[5]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[0]/dl[0]/dd[7]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[0]/dl[0]/dd[9]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[2]/dl[0]/dd[1]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[2]/dl[0]/dd[3]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[4]/dl[0]/dd[1]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[4]/dl[0]/dd[3]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/p[1]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/p[3]"]}], "language": "zh", "original_text": {"/versions/16/description/0": "Bind is a frontend protocol message. Identifies the message as a Bind command.", "/versions/16/facts/0/label": "Direction", "/versions/16/facts/0/value": "Frontend \u2192 backend", "/versions/16/facts/1/label": "First wire field", "/versions/16/facts/2/label": "Field entries", "/versions/16/facts/3/label": "Documented flow contexts", "/versions/16/facts/3/value": "Extended Query; Function Call", "/versions/16/tables/0/title": "Wire fields in documented order", "/versions/16/related/0/label": "Protocol flow and exchange examples", "/versions/16/related/1/label": "Protocol overview", "/versions/16/related/2/label": "Extended Query", "/versions/16/related/3/label": "Function Call", "/versions/16/sections/0/title": "Framing and repetition", "/versions/16/tables/0/rows/0/c2": "Identifies the message as a Bind command.", "/versions/16/tables/0/rows/1/c2": "Length of message contents in bytes, including self.", "/versions/16/tables/0/rows/2/c1": "String", "/versions/16/tables/0/rows/2/c2": "The name of the destination portal (an empty string selects the unnamed portal).", "/versions/16/tables/0/rows/3/c1": "String", "/versions/16/tables/0/rows/3/c2": "The name of the source prepared statement (an empty string selects the unnamed prepared statement).", "/versions/16/tables/0/rows/4/c2": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters.", "/versions/16/tables/0/rows/5/c2": "The parameter format codes. Each must presently be zero (text) or one (binary).", "/versions/16/tables/0/rows/6/c2": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query.", "/versions/16/tables/0/rows/7/c2": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case.", "/versions/16/tables/0/rows/8/c1": "Byte n", "/versions/16/tables/0/rows/8/c2": "The value of the parameter, in the format indicated by the associated format code. n is the above length.", "/versions/16/tables/0/rows/9/c2": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query.", "/versions/16/tables/0/rows/10/c2": "The result-column format codes. Each must presently be zero (text) or one (binary).", "/versions/16/sections/0/paragraphs/0": "The complete definition below retains repetition, counts and conditional fields. A numbered table row is a documented field definition, not a fixed byte offset. Integer encodings and flow rules follow the same-version protocol chapter.", "/versions/16/tables/0/columns/0/label": "Position", "/versions/16/tables/0/columns/1/label": "Format", "/versions/16/tables/0/columns/2/label": "Meaning"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "92ff9d29cbadb9e502c8bdcd1569a11ae9f246cf8400dce56277820efdf577f2"}, "comparison_data": {"fields": [{"format": "Byte1('B')", "description": "Identifies the message as a Bind command."}, {"format": "Int32", "description": "Length of message contents in bytes, including self."}, {"format": "String", "description": "The name of the destination portal (an empty string selects the unnamed portal)."}, {"format": "String", "description": "The name of the source prepared statement (an empty string selects the unnamed prepared statement)."}, {"format": "Int16", "description": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters."}, {"format": "Int16[ C ]", "description": "The parameter format codes. Each must presently be zero (text) or one (binary)."}, {"format": "Int16", "description": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query."}, {"format": "Int32", "description": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case."}, {"format": "Byte n", "description": "The value of the parameter, in the format indicated by the associated format code. n is the above length."}, {"format": "Int16", "description": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query."}, {"format": "Int16[ R ]", "description": "The result-column format codes. Each must presently be zero (text) or one (binary)."}], "direction": "F"}, "comparison_hash": "c8b0c2d1702e2be51f0c868a6594754e9fee7debc6c10c6dab9aee46235c1a22", "manual_language": "zh"}, "17": {"facts": [{"label": "\u65b9\u5411", "value": "\u524d\u7aef \u2192 \u540e\u7aef"}, {"label": "\u9996\u4e2a\u7ebf\u4e0a\u534f\u8bae\u5b57\u6bb5", "value": "Byte1('B')"}, {"label": "\u5b57\u6bb5\u6761\u76ee", "value": "11"}, {"label": "\u624b\u518c\u4e2d\u7684\u4ea4\u4e92\u9636\u6bb5", "value": "\u6269\u5c55\u67e5\u8be2\uff1b\u51fd\u6570\u8c03\u7528"}], "fields": [{"format": "Byte1('B')", "description": "Identifies the message as a Bind command."}, {"format": "Int32", "description": "Length of message contents in bytes, including self."}, {"format": "String", "description": "The name of the destination portal (an empty string selects the unnamed portal)."}, {"format": "String", "description": "The name of the source prepared statement (an empty string selects the unnamed prepared statement)."}, {"format": "Int16", "description": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters."}, {"format": "Int16[ C ]", "description": "The parameter format codes. Each must presently be zero (text) or one (binary)."}, {"format": "Int16", "description": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query."}, {"format": "Int32", "description": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. 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Each must presently be zero (text) or one (binary)."}], "tables": [{"key": "fields", "rows": [{"c0": "1", "c1": "Byte1('B')", "c2": "\u5c06\u8be5\u6d88\u606f\u6807\u8bc6\u4e3a Bind \u547d\u4ee4\u3002"}, {"c0": "2", "c1": "Int32", "c2": "\u6d88\u606f\u5185\u5bb9\u7684\u957f\u5ea6\uff08\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff09\uff0c\u5305\u62ec\u5176\u81ea\u8eab\u3002"}, {"c0": "3", "c1": "\u5b57\u7b26\u4e32", "c2": "\u76ee\u6807 portal \u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684 portal\uff09\u3002"}, {"c0": "4", "c1": "\u5b57\u7b26\u4e32", "c2": "\u6e90\u9884\u5907\u8bed\u53e5\u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684\u9884\u5907\u8bed\u53e5\uff09\u3002"}, {"c0": "5", "c1": "Int16", "c2": "\u540e\u7eed\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 C \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u53c2\u6570\uff0c\u6216\u8005\u6240\u6709\u53c2\u6570\u90fd\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u53c2\u6570\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u5b9e\u9645\u53c2\u6570\u6570\u91cf\u3002"}, {"c0": "6", "c1": "Int16[ C ]", "c2": "\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002"}, {"c0": "7", "c1": "Int16", "c2": "\u540e\u7eed\u53c2\u6570\u503c\u7684\u6570\u91cf\uff08\u53ef\u4ee5\u4e3a\u96f6\uff09\u3002\u5fc5\u987b\u4e0e\u67e5\u8be2\u6240\u9700\u7684\u53c2\u6570\u6570\u91cf\u4e00\u81f4\u3002"}, {"c0": "8", "c1": "Int32", "c2": "\u53c2\u6570\u503c\u7684\u957f\u5ea6\uff0c\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff08\u4e0d\u5305\u62ec\u6b64\u957f\u5ea6\u5b57\u6bb5\u672c\u8eab\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\u3002\u7279\u6b8a\u503c -1 \u8868\u793a NULL \u53c2\u6570\u503c\u3002\u4e3a NULL \u65f6\uff0c\u540e\u9762\u4e0d\u518d\u6709\u503c\u7684\u5b57\u8282\u3002"}, {"c0": "9", "c1": "Byte n", "c2": "\u53c2\u6570\u503c\uff0c\u683c\u5f0f\u7531\u5bf9\u5e94\u7684\u683c\u5f0f\u4ee3\u7801\u6307\u660e\u3002 n \u4e3a\u4e0a\u8ff0\u957f\u5ea6\u3002"}, {"c0": "10", "c1": "Int16", "c2": "\u540e\u7eed\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 R \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u7ed3\u679c\u5217\uff0c\u6216\u8005\u6240\u6709\u7ed3\u679c\u5217\u90fd\u5e94\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u7ed3\u679c\u5217\uff08\u5982\u679c\u6709\uff09\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u67e5\u8be2\u5b9e\u9645\u7684\u7ed3\u679c\u5217\u6570\u91cf\u3002"}, {"c0": "11", "c1": "Int16[ R ]", "c2": "\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002"}], "title": "\u6309\u624b\u518c\u987a\u5e8f\u6392\u5217\u7684\u7ebf\u4e0a\u534f\u8bae\u5b57\u6bb5", "columns": [{"key": "c0", "label": "\u4f4d\u7f6e"}, {"key": "c1", "label": "\u683c\u5f0f"}, {"key": "c2", "label": "\u542b\u4e49"}]}], "related": [{"url": "/docs/17/protocol-flow.html", "label": "\u534f\u8bae\u6d41\u7a0b\u4e0e\u4ea4\u4e92\u793a\u4f8b"}, {"url": "/docs/17/protocol-overview.html", "label": "\u534f\u8bae\u6982\u8ff0"}, {"url": "/docs/17/protocol-flow.html#PROTOCOL-FLOW-EXT-QUERY", "label": "\u6269\u5c55\u67e5\u8be2"}, {"url": "/docs/17/protocol-flow.html#PROTOCOL-FLOW-FUNCTION-CALL", "label": "\u51fd\u6570\u8c03\u7528"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v17.11/postgresql-17.11.tar.bz2", "label": "17.11", "major": "17", "channel": "stable", "revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "sources": [{"url": "https://pg.center/docs/17/protocol-message-formats.html#PROTOCOL-MESSAGE-FORMATS-BIND", "path": "protocol-message-formats.html", "label": "PostgreSQL 17 English manual", "sha256": "3c0e7b8a1a8f7ec5026226eab83d6704b7c5199ec9ba1aaaf91ea517609eed4e", "language": "en", "original_url": "/docs/17/protocol-message-formats.html#PROTOCOL-MESSAGE-FORMATS-BIND"}], "sections": [{"title": "\u6d88\u606f\u8fb9\u754c\u4e0e\u91cd\u590d\u5b57\u6bb5", "paragraphs": ["\u4e0b\u65b9\u5b8c\u6574\u5b9a\u4e49\u4fdd\u7559\u91cd\u590d\u9879\u3001\u8ba1\u6570\u4e0e\u6761\u4ef6\u5b57\u6bb5\u3002\u8868\u683c\u884c\u53f7\u8868\u793a\u6587\u6863\u4e2d\u7684\u5b57\u6bb5\u5b9a\u4e49\uff0c\u5e76\u975e\u56fa\u5b9a\u5b57\u8282\u504f\u79fb\u91cf\u3002\u6574\u6570\u7f16\u7801\u4e0e\u4ea4\u4e92\u6d41\u7a0b\u4ee5\u540c\u7248\u672c\u534f\u8bae\u7ae0\u8282\u4e3a\u51c6\u3002"]}], "direction": "F", "signature": "Bind (F)", "description": ["Bind \u662f\u524d\u7aef\u534f\u8bae\u6d88\u606f\uff0c\u8868\u793a Bind \u547d\u4ee4\u3002"], "manual_html": "
\n
\n
\n
Byte1('B')
\n
\n

\n

\u5c06\u8be5\u6d88\u606f\u6807\u8bc6\u4e3a Bind \u547d\u4ee4\u3002

\n

\n
\n
Int32
\n
\n

\n

\u6d88\u606f\u5185\u5bb9\u7684\u957f\u5ea6\uff08\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff09\uff0c\u5305\u62ec\u5176\u81ea\u8eab\u3002

\n

\n
\n
\u5b57\u7b26\u4e32
\n
\n

\n

\u76ee\u6807 portal \u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684 portal\uff09\u3002

\n

\n
\n
\u5b57\u7b26\u4e32
\n
\n

\n

\u6e90\u9884\u5907\u8bed\u53e5\u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684\u9884\u5907\u8bed\u53e5\uff09\u3002

\n

\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 C \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u53c2\u6570\uff0c\u6216\u8005\u6240\u6709\u53c2\u6570\u90fd\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u53c2\u6570\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u5b9e\u9645\u53c2\u6570\u6570\u91cf\u3002

\n

\n
\n
Int16[C]
\n
\n

\n

\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002

\n

\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u53c2\u6570\u503c\u7684\u6570\u91cf\uff08\u53ef\u4ee5\u4e3a\u96f6\uff09\u3002\u5fc5\u987b\u4e0e\u67e5\u8be2\u6240\u9700\u7684\u53c2\u6570\u6570\u91cf\u4e00\u81f4\u3002

\n

\n
\n
\n
\n

\u63a5\u4e0b\u6765\uff0c\u6bcf\u4e2a\u53c2\u6570\u90fd\u6709\u4ee5\u4e0b\u4e00\u5bf9\u5b57\u6bb5\uff1a

\n
\n
\n
Int32
\n
\n

\n

\u53c2\u6570\u503c\u7684\u957f\u5ea6\uff0c\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff08\u4e0d\u5305\u62ec\u6b64\u957f\u5ea6\u5b57\u6bb5\u672c\u8eab\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\u3002\u7279\u6b8a\u503c -1 \u8868\u793a NULL \u53c2\u6570\u503c\u3002\u4e3a NULL \u65f6\uff0c\u540e\u9762\u4e0d\u518d\u6709\u503c\u7684\u5b57\u8282\u3002

\n

\n
\n
Byte n
\n
\n

\n

\u53c2\u6570\u503c\uff0c\u683c\u5f0f\u7531\u5bf9\u5e94\u7684\u683c\u5f0f\u4ee3\u7801\u6307\u660e\u3002n \u4e3a\u4e0a\u8ff0\u957f\u5ea6\u3002

\n

\n
\n
\n
\n

\u6700\u540e\u4e00\u4e2a\u53c2\u6570\u4e4b\u540e\u662f\u4ee5\u4e0b\u5b57\u6bb5\uff1a

\n
\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 R \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u7ed3\u679c\u5217\uff0c\u6216\u8005\u6240\u6709\u7ed3\u679c\u5217\u90fd\u5e94\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u7ed3\u679c\u5217\uff08\u5982\u679c\u6709\uff09\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u67e5\u8be2\u5b9e\u9645\u7684\u7ed3\u679c\u5217\u6570\u91cf\u3002

\n

\n
\n
Int16[R]
\n
\n

\n

\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002

\n

\n
\n
\n
\n
", "manual_path": "/docs/17/protocol-message-formats.html", "localization": {"status": "complete", "sources": [{"url": "/docs/17/datatype-json.html", "method": "same-major semantic node", "sha256": "8d2627b39aa9ad8449221de824f0c89af32197e8db7972fbc03b43dfcd0e9a93", "language": "zh", "matched_nodes": ["#DATATYPE-JSON/div[19]/pre[27]/em[4]/code[0]"]}, {"url": "/docs/17/protocol-message-formats.html", "method": "same-major semantic node", "sha256": "d6412ab936b8b40cbe8abcad969c38c282e7039b7b2c6805eb126a28008f973d", "language": "zh", "matched_nodes": ["#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[1]/div[0]/dl[0]/dd[3]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[0]/dl[0]/dd[11]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[0]/dl[0]/dd[13]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[0]/dl[0]/dd[1]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[0]/dl[0]/dd[5]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[0]/dl[0]/dd[7]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[0]/dl[0]/dd[9]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[2]/dl[0]/dd[1]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[2]/dl[0]/dd[3]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[4]/dl[0]/dd[1]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[4]/dl[0]/dd[3]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/p[1]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/p[3]"]}], "language": "zh", "original_text": {"/versions/17/description/0": "Bind is a frontend protocol message. Identifies the message as a Bind command.", "/versions/17/facts/0/label": "Direction", "/versions/17/facts/0/value": "Frontend \u2192 backend", "/versions/17/facts/1/label": "First wire field", "/versions/17/facts/2/label": "Field entries", "/versions/17/facts/3/label": "Documented flow contexts", "/versions/17/facts/3/value": "Extended Query; Function Call", "/versions/17/tables/0/title": "Wire fields in documented order", "/versions/17/related/0/label": "Protocol flow and exchange examples", "/versions/17/related/1/label": "Protocol overview", "/versions/17/related/2/label": "Extended Query", "/versions/17/related/3/label": "Function Call", "/versions/17/sections/0/title": "Framing and repetition", "/versions/17/tables/0/rows/0/c2": "Identifies the message as a Bind command.", "/versions/17/tables/0/rows/1/c2": "Length of message contents in bytes, including self.", "/versions/17/tables/0/rows/2/c1": "String", "/versions/17/tables/0/rows/2/c2": "The name of the destination portal (an empty string selects the unnamed portal).", "/versions/17/tables/0/rows/3/c1": "String", "/versions/17/tables/0/rows/3/c2": "The name of the source prepared statement (an empty string selects the unnamed prepared statement).", "/versions/17/tables/0/rows/4/c2": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters.", "/versions/17/tables/0/rows/5/c2": "The parameter format codes. Each must presently be zero (text) or one (binary).", "/versions/17/tables/0/rows/6/c2": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query.", "/versions/17/tables/0/rows/7/c2": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case.", "/versions/17/tables/0/rows/8/c1": "Byte n", "/versions/17/tables/0/rows/8/c2": "The value of the parameter, in the format indicated by the associated format code. n is the above length.", "/versions/17/tables/0/rows/9/c2": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query.", "/versions/17/tables/0/rows/10/c2": "The result-column format codes. Each must presently be zero (text) or one (binary).", "/versions/17/sections/0/paragraphs/0": "The complete definition below retains repetition, counts and conditional fields. A numbered table row is a documented field definition, not a fixed byte offset. Integer encodings and flow rules follow the same-version protocol chapter.", "/versions/17/tables/0/columns/0/label": "Position", "/versions/17/tables/0/columns/1/label": "Format", "/versions/17/tables/0/columns/2/label": "Meaning"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "1fbc88d30a3d265edd0fddd5ab5526c6ad7e7709e71fb8bd8911018c3f461dc8"}, "comparison_data": {"fields": [{"format": "Byte1('B')", "description": "Identifies the message as a Bind command."}, {"format": "Int32", "description": "Length of message contents in bytes, including self."}, {"format": "String", "description": "The name of the destination portal (an empty string selects the unnamed portal)."}, {"format": "String", "description": "The name of the source prepared statement (an empty string selects the unnamed prepared statement)."}, {"format": "Int16", "description": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters."}, {"format": "Int16[ C ]", "description": "The parameter format codes. Each must presently be zero (text) or one (binary)."}, {"format": "Int16", "description": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query."}, {"format": "Int32", "description": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case."}, {"format": "Byte n", "description": "The value of the parameter, in the format indicated by the associated format code. n is the above length."}, {"format": "Int16", "description": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query."}, {"format": "Int16[ R ]", "description": "The result-column format codes. Each must presently be zero (text) or one (binary)."}], "direction": "F"}, "comparison_hash": "c8b0c2d1702e2be51f0c868a6594754e9fee7debc6c10c6dab9aee46235c1a22", "manual_language": "zh"}, "18": {"facts": [{"label": "\u65b9\u5411", "value": "\u524d\u7aef \u2192 \u540e\u7aef"}, {"label": "\u9996\u4e2a\u7ebf\u4e0a\u534f\u8bae\u5b57\u6bb5", "value": "Byte1('B')"}, {"label": "\u5b57\u6bb5\u6761\u76ee", "value": "11"}, {"label": "\u624b\u518c\u4e2d\u7684\u4ea4\u4e92\u9636\u6bb5", "value": "\u6269\u5c55\u67e5\u8be2\uff1b\u51fd\u6570\u8c03\u7528"}], "fields": [{"format": "Byte1('B')", "description": "Identifies the message as a Bind command."}, {"format": "Int32", "description": "Length of message contents in bytes, including self."}, {"format": "String", "description": "The name of the destination portal (an empty string selects the unnamed portal)."}, {"format": "String", "description": "The name of the source prepared statement (an empty string selects the unnamed prepared statement)."}, {"format": "Int16", "description": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters."}, {"format": "Int16[ C ]", "description": "The parameter format codes. Each must presently be zero (text) or one (binary)."}, {"format": "Int16", "description": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query."}, {"format": "Int32", "description": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case."}, {"format": "Byte n", "description": "The value of the parameter, in the format indicated by the associated format code. n is the above length."}, {"format": "Int16", "description": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query."}, {"format": "Int16[ R ]", "description": "The result-column format codes. Each must presently be zero (text) or one (binary)."}], "tables": [{"key": "fields", "rows": [{"c0": "1", "c1": "Byte1('B')", "c2": "\u5c06\u8be5\u6d88\u606f\u6807\u8bc6\u4e3a Bind \u547d\u4ee4\u3002"}, {"c0": "2", "c1": "Int32", "c2": "\u6d88\u606f\u5185\u5bb9\u7684\u957f\u5ea6\uff08\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff09\uff0c\u5305\u62ec\u5176\u81ea\u8eab\u3002"}, {"c0": "3", "c1": "\u5b57\u7b26\u4e32", "c2": "\u76ee\u6807 portal \u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684 portal\uff09\u3002"}, {"c0": "4", "c1": "\u5b57\u7b26\u4e32", "c2": "\u6e90\u9884\u5907\u8bed\u53e5\u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684\u9884\u5907\u8bed\u53e5\uff09\u3002"}, {"c0": "5", "c1": "Int16", "c2": "\u540e\u7eed\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 C \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u53c2\u6570\uff0c\u6216\u8005\u6240\u6709\u53c2\u6570\u90fd\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u53c2\u6570\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u5b9e\u9645\u53c2\u6570\u6570\u91cf\u3002"}, {"c0": "6", "c1": "Int16[ C ]", "c2": "\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002"}, {"c0": "7", "c1": "Int16", "c2": "\u540e\u7eed\u53c2\u6570\u503c\u7684\u6570\u91cf\uff08\u53ef\u4ee5\u4e3a\u96f6\uff09\u3002\u5fc5\u987b\u4e0e\u67e5\u8be2\u6240\u9700\u7684\u53c2\u6570\u6570\u91cf\u4e00\u81f4\u3002"}, {"c0": "8", "c1": "Int32", "c2": "\u53c2\u6570\u503c\u7684\u957f\u5ea6\uff0c\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff08\u4e0d\u5305\u62ec\u6b64\u957f\u5ea6\u5b57\u6bb5\u672c\u8eab\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\u3002\u7279\u6b8a\u503c -1 \u8868\u793a NULL \u53c2\u6570\u503c\u3002\u4e3a NULL \u65f6\uff0c\u540e\u9762\u4e0d\u518d\u6709\u503c\u7684\u5b57\u8282\u3002"}, {"c0": "9", "c1": "Byte n", "c2": "\u53c2\u6570\u503c\uff0c\u683c\u5f0f\u7531\u5bf9\u5e94\u7684\u683c\u5f0f\u4ee3\u7801\u6307\u660e\u3002 n \u4e3a\u4e0a\u8ff0\u957f\u5ea6\u3002"}, {"c0": "10", "c1": "Int16", "c2": "\u540e\u7eed\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 R \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u7ed3\u679c\u5217\uff0c\u6216\u8005\u6240\u6709\u7ed3\u679c\u5217\u90fd\u5e94\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u7ed3\u679c\u5217\uff08\u5982\u679c\u6709\uff09\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u67e5\u8be2\u5b9e\u9645\u7684\u7ed3\u679c\u5217\u6570\u91cf\u3002"}, {"c0": "11", "c1": "Int16[ R ]", "c2": "\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002"}], "title": "\u6309\u624b\u518c\u987a\u5e8f\u6392\u5217\u7684\u7ebf\u4e0a\u534f\u8bae\u5b57\u6bb5", "columns": [{"key": "c0", "label": "\u4f4d\u7f6e"}, {"key": "c1", "label": "\u683c\u5f0f"}, {"key": "c2", "label": "\u542b\u4e49"}]}], "related": [{"url": "/docs/18/protocol-flow.html", "label": "\u534f\u8bae\u6d41\u7a0b\u4e0e\u4ea4\u4e92\u793a\u4f8b"}, {"url": "/docs/18/protocol-overview.html", "label": "\u534f\u8bae\u6982\u8ff0"}, {"url": "/docs/18/protocol-flow.html#PROTOCOL-FLOW-EXT-QUERY", "label": "\u6269\u5c55\u67e5\u8be2"}, {"url": "/docs/18/protocol-flow.html#PROTOCOL-FLOW-FUNCTION-CALL", "label": "\u51fd\u6570\u8c03\u7528"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2", "label": "18.6", "major": "18", "channel": "stable", "revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "sources": [{"url": "https://pg.center/docs/18/protocol-message-formats.html#PROTOCOL-MESSAGE-FORMATS-BIND", "path": "protocol-message-formats.html", "label": "PostgreSQL 18 English manual", "sha256": "53f37652ac2c089e30ada87d8aee7bdd0f26695b03f275302e526a807d2a1f23", "language": "en", "original_url": "/docs/18/protocol-message-formats.html#PROTOCOL-MESSAGE-FORMATS-BIND"}], "sections": [{"title": "\u6d88\u606f\u8fb9\u754c\u4e0e\u91cd\u590d\u5b57\u6bb5", "paragraphs": ["\u4e0b\u65b9\u5b8c\u6574\u5b9a\u4e49\u4fdd\u7559\u91cd\u590d\u9879\u3001\u8ba1\u6570\u4e0e\u6761\u4ef6\u5b57\u6bb5\u3002\u8868\u683c\u884c\u53f7\u8868\u793a\u6587\u6863\u4e2d\u7684\u5b57\u6bb5\u5b9a\u4e49\uff0c\u5e76\u975e\u56fa\u5b9a\u5b57\u8282\u504f\u79fb\u91cf\u3002\u6574\u6570\u7f16\u7801\u4e0e\u4ea4\u4e92\u6d41\u7a0b\u4ee5\u540c\u7248\u672c\u534f\u8bae\u7ae0\u8282\u4e3a\u51c6\u3002"]}], "direction": "F", "signature": "Bind (F)", "description": ["Bind \u662f\u524d\u7aef\u534f\u8bae\u6d88\u606f\uff0c\u8868\u793a Bind \u547d\u4ee4\u3002"], "manual_html": "
\n
\n
\n
Byte1('B')
\n
\n

\n

\u5c06\u8be5\u6d88\u606f\u6807\u8bc6\u4e3a Bind \u547d\u4ee4\u3002

\n

\n
\n
Int32
\n
\n

\n

\u6d88\u606f\u5185\u5bb9\u7684\u957f\u5ea6\uff08\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff09\uff0c\u5305\u62ec\u5176\u81ea\u8eab\u3002

\n

\n
\n
\u5b57\u7b26\u4e32
\n
\n

\n

\u76ee\u6807 portal \u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684 portal\uff09\u3002

\n

\n
\n
\u5b57\u7b26\u4e32
\n
\n

\n

\u6e90\u9884\u5907\u8bed\u53e5\u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684\u9884\u5907\u8bed\u53e5\uff09\u3002

\n

\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 C \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u53c2\u6570\uff0c\u6216\u8005\u6240\u6709\u53c2\u6570\u90fd\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u53c2\u6570\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u5b9e\u9645\u53c2\u6570\u6570\u91cf\u3002

\n

\n
\n
Int16[C]
\n
\n

\n

\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002

\n

\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u53c2\u6570\u503c\u7684\u6570\u91cf\uff08\u53ef\u4ee5\u4e3a\u96f6\uff09\u3002\u5fc5\u987b\u4e0e\u67e5\u8be2\u6240\u9700\u7684\u53c2\u6570\u6570\u91cf\u4e00\u81f4\u3002

\n

\n
\n
\n
\n

\u63a5\u4e0b\u6765\uff0c\u6bcf\u4e2a\u53c2\u6570\u90fd\u6709\u4ee5\u4e0b\u4e00\u5bf9\u5b57\u6bb5\uff1a

\n
\n
\n
Int32
\n
\n

\n

\u53c2\u6570\u503c\u7684\u957f\u5ea6\uff0c\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff08\u4e0d\u5305\u62ec\u6b64\u957f\u5ea6\u5b57\u6bb5\u672c\u8eab\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\u3002\u7279\u6b8a\u503c -1 \u8868\u793a NULL \u53c2\u6570\u503c\u3002\u4e3a NULL \u65f6\uff0c\u540e\u9762\u4e0d\u518d\u6709\u503c\u7684\u5b57\u8282\u3002

\n

\n
\n
Byte n
\n
\n

\n

\u53c2\u6570\u503c\uff0c\u683c\u5f0f\u7531\u5bf9\u5e94\u7684\u683c\u5f0f\u4ee3\u7801\u6307\u660e\u3002n \u4e3a\u4e0a\u8ff0\u957f\u5ea6\u3002

\n

\n
\n
\n
\n

\u6700\u540e\u4e00\u4e2a\u53c2\u6570\u4e4b\u540e\u662f\u4ee5\u4e0b\u5b57\u6bb5\uff1a

\n
\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 R \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u7ed3\u679c\u5217\uff0c\u6216\u8005\u6240\u6709\u7ed3\u679c\u5217\u90fd\u5e94\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u7ed3\u679c\u5217\uff08\u5982\u679c\u6709\uff09\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u67e5\u8be2\u5b9e\u9645\u7684\u7ed3\u679c\u5217\u6570\u91cf\u3002

\n

\n
\n
Int16[R]
\n
\n

\n

\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002

\n

\n
\n
\n
\n
", "manual_path": "/docs/18/protocol-message-formats.html", "localization": {"status": "complete", "sources": [{"url": "/docs/18/datatype-json.html", "method": "same-major semantic node", "sha256": "b9e8f98a0b5f2a4ec7b5197d02ab40c0ac0635a678c32728aaadd43cb4cd3766", "language": "zh", "matched_nodes": ["#DATATYPE-JSON/div[19]/pre[27]/em[4]/code[0]"]}, {"url": "/docs/18/protocol-message-formats.html", "method": "same-major semantic node", "sha256": "add610bc3053cbc2f8d57b8a89e7e9d17dca8906d66221e9268c1dd1b390d0b5", "language": "zh", "matched_nodes": ["#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[1]/div[0]/dl[0]/dd[3]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[0]/dl[0]/dd[11]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[0]/dl[0]/dd[13]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[0]/dl[0]/dd[1]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[0]/dl[0]/dd[5]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[0]/dl[0]/dd[7]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[0]/dl[0]/dd[9]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[2]/dl[0]/dd[1]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[2]/dl[0]/dd[3]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[4]/dl[0]/dd[1]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[4]/dl[0]/dd[3]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/p[1]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/p[3]"]}], "language": "zh", "original_text": {"/versions/18/description/0": "Bind is a frontend protocol message. Identifies the message as a Bind command.", "/versions/18/facts/0/label": "Direction", "/versions/18/facts/0/value": "Frontend \u2192 backend", "/versions/18/facts/1/label": "First wire field", "/versions/18/facts/2/label": "Field entries", "/versions/18/facts/3/label": "Documented flow contexts", "/versions/18/facts/3/value": "Extended Query; Function Call", "/versions/18/tables/0/title": "Wire fields in documented order", "/versions/18/related/0/label": "Protocol flow and exchange examples", "/versions/18/related/1/label": "Protocol overview", "/versions/18/related/2/label": "Extended Query", "/versions/18/related/3/label": "Function Call", "/versions/18/sections/0/title": "Framing and repetition", "/versions/18/tables/0/rows/0/c2": "Identifies the message as a Bind command.", "/versions/18/tables/0/rows/1/c2": "Length of message contents in bytes, including self.", "/versions/18/tables/0/rows/2/c1": "String", "/versions/18/tables/0/rows/2/c2": "The name of the destination portal (an empty string selects the unnamed portal).", "/versions/18/tables/0/rows/3/c1": "String", "/versions/18/tables/0/rows/3/c2": "The name of the source prepared statement (an empty string selects the unnamed prepared statement).", "/versions/18/tables/0/rows/4/c2": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters.", "/versions/18/tables/0/rows/5/c2": "The parameter format codes. Each must presently be zero (text) or one (binary).", "/versions/18/tables/0/rows/6/c2": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query.", "/versions/18/tables/0/rows/7/c2": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case.", "/versions/18/tables/0/rows/8/c1": "Byte n", "/versions/18/tables/0/rows/8/c2": "The value of the parameter, in the format indicated by the associated format code. n is the above length.", "/versions/18/tables/0/rows/9/c2": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query.", "/versions/18/tables/0/rows/10/c2": "The result-column format codes. Each must presently be zero (text) or one (binary).", "/versions/18/sections/0/paragraphs/0": "The complete definition below retains repetition, counts and conditional fields. A numbered table row is a documented field definition, not a fixed byte offset. Integer encodings and flow rules follow the same-version protocol chapter.", "/versions/18/tables/0/columns/0/label": "Position", "/versions/18/tables/0/columns/1/label": "Format", "/versions/18/tables/0/columns/2/label": "Meaning"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "35bdfd77544d3cbf1f5490d94cd866bca5a3ede8e345a78221d0095c14628ef4"}, "comparison_data": {"fields": [{"format": "Byte1('B')", "description": "Identifies the message as a Bind command."}, {"format": "Int32", "description": "Length of message contents in bytes, including self."}, {"format": "String", "description": "The name of the destination portal (an empty string selects the unnamed portal)."}, {"format": "String", "description": "The name of the source prepared statement (an empty string selects the unnamed prepared statement)."}, {"format": "Int16", "description": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters."}, {"format": "Int16[ C ]", "description": "The parameter format codes. Each must presently be zero (text) or one (binary)."}, {"format": "Int16", "description": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query."}, {"format": "Int32", "description": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case."}, {"format": "Byte n", "description": "The value of the parameter, in the format indicated by the associated format code. n is the above length."}, {"format": "Int16", "description": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query."}, {"format": "Int16[ R ]", "description": "The result-column format codes. Each must presently be zero (text) or one (binary)."}], "direction": "F"}, "comparison_hash": "c8b0c2d1702e2be51f0c868a6594754e9fee7debc6c10c6dab9aee46235c1a22", "manual_language": "zh"}, "19": {"facts": [{"label": "\u65b9\u5411", "value": "\u524d\u7aef \u2192 \u540e\u7aef"}, {"label": "\u9996\u4e2a\u7ebf\u4e0a\u534f\u8bae\u5b57\u6bb5", "value": "Byte1('B')"}, {"label": "\u5b57\u6bb5\u6761\u76ee", "value": "11"}, {"label": "\u624b\u518c\u4e2d\u7684\u4ea4\u4e92\u9636\u6bb5", "value": "\u6269\u5c55\u67e5\u8be2\uff1b\u51fd\u6570\u8c03\u7528"}], "fields": [{"format": "Byte1('B')", "description": "Identifies the message as a Bind command."}, {"format": "Int32", "description": "Length of message contents in bytes, including self."}, {"format": "String", "description": "The name of the destination portal (an empty string selects the unnamed portal)."}, {"format": "String", "description": "The name of the source prepared statement (an empty string selects the unnamed prepared statement)."}, {"format": "Int16", "description": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters."}, {"format": "Int16[ C ]", "description": "The parameter format codes. Each must presently be zero (text) or one (binary)."}, {"format": "Int16", "description": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query."}, {"format": "Int32", "description": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case."}, {"format": "Byte n", "description": "The value of the parameter, in the format indicated by the associated format code. n is the above length."}, {"format": "Int16", "description": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query."}, {"format": "Int16[ R ]", "description": "The result-column format codes. Each must presently be zero (text) or one (binary)."}], "tables": [{"key": "fields", "rows": [{"c0": "1", "c1": "Byte1('B')", "c2": "\u5c06\u8be5\u6d88\u606f\u6807\u8bc6\u4e3a Bind \u547d\u4ee4\u3002"}, {"c0": "2", "c1": "Int32", "c2": "\u6d88\u606f\u5185\u5bb9\u7684\u957f\u5ea6\uff08\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff09\uff0c\u5305\u62ec\u5176\u81ea\u8eab\u3002"}, {"c0": "3", "c1": "\u5b57\u7b26\u4e32", "c2": "\u76ee\u6807 portal \u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684 portal\uff09\u3002"}, {"c0": "4", "c1": "\u5b57\u7b26\u4e32", "c2": "\u6e90\u9884\u5907\u8bed\u53e5\u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684\u9884\u5907\u8bed\u53e5\uff09\u3002"}, {"c0": "5", "c1": "Int16", "c2": "\u540e\u7eed\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 C \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u53c2\u6570\uff0c\u6216\u8005\u6240\u6709\u53c2\u6570\u90fd\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u53c2\u6570\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u5b9e\u9645\u53c2\u6570\u6570\u91cf\u3002"}, {"c0": "6", "c1": "Int16[ C ]", "c2": "\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002"}, {"c0": "7", "c1": "Int16", "c2": "\u540e\u7eed\u53c2\u6570\u503c\u7684\u6570\u91cf\uff08\u53ef\u4ee5\u4e3a\u96f6\uff09\u3002\u5fc5\u987b\u4e0e\u67e5\u8be2\u6240\u9700\u7684\u53c2\u6570\u6570\u91cf\u4e00\u81f4\u3002"}, {"c0": "8", "c1": "Int32", "c2": "\u53c2\u6570\u503c\u7684\u957f\u5ea6\uff0c\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff08\u4e0d\u5305\u62ec\u6b64\u957f\u5ea6\u5b57\u6bb5\u672c\u8eab\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\u3002\u7279\u6b8a\u503c -1 \u8868\u793a NULL \u53c2\u6570\u503c\u3002\u4e3a NULL \u65f6\uff0c\u540e\u9762\u4e0d\u518d\u6709\u503c\u7684\u5b57\u8282\u3002"}, {"c0": "9", "c1": "Byte n", "c2": "\u53c2\u6570\u503c\uff0c\u683c\u5f0f\u7531\u5bf9\u5e94\u7684\u683c\u5f0f\u4ee3\u7801\u6307\u660e\u3002 n \u4e3a\u4e0a\u8ff0\u957f\u5ea6\u3002"}, {"c0": "10", "c1": "Int16", "c2": "\u540e\u7eed\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 R \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u7ed3\u679c\u5217\uff0c\u6216\u8005\u6240\u6709\u7ed3\u679c\u5217\u90fd\u5e94\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u7ed3\u679c\u5217\uff08\u5982\u679c\u6709\uff09\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u67e5\u8be2\u5b9e\u9645\u7684\u7ed3\u679c\u5217\u6570\u91cf\u3002"}, {"c0": "11", "c1": "Int16[ R ]", "c2": "\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002"}], "title": "\u6309\u624b\u518c\u987a\u5e8f\u6392\u5217\u7684\u7ebf\u4e0a\u534f\u8bae\u5b57\u6bb5", "columns": [{"key": "c0", "label": "\u4f4d\u7f6e"}, {"key": "c1", "label": "\u683c\u5f0f"}, {"key": "c2", "label": "\u542b\u4e49"}]}], "related": [{"url": "/docs/19/protocol-flow.html", "label": "\u534f\u8bae\u6d41\u7a0b\u4e0e\u4ea4\u4e92\u793a\u4f8b"}, {"url": "/docs/19/protocol-overview.html", "label": "\u534f\u8bae\u6982\u8ff0"}, {"url": "/docs/19/protocol-flow.html#PROTOCOL-FLOW-EXT-QUERY", "label": "\u6269\u5c55\u67e5\u8be2"}, {"url": "/docs/19/protocol-flow.html#PROTOCOL-FLOW-FUNCTION-CALL", "label": "\u51fd\u6570\u8c03\u7528"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v19beta4/postgresql-19beta4.tar.bz2", "label": "19beta4", "major": "19", "channel": "preview", "revision": "83157ee9c599d03b2f7a3d73ef3a56ec24e0e79cc2b3501a64d1364f56398c86"}, "sources": [{"url": "https://pg.center/docs/19/protocol-message-formats.html#PROTOCOL-MESSAGE-FORMATS-BIND", "path": "protocol-message-formats.html", "label": "PostgreSQL 19 English manual", "sha256": "90ffd4417d4975d088424b23a513f1d79ac914225ad7e239a12f44d0dd2248e4", "language": "en", "original_url": "/docs/19/protocol-message-formats.html#PROTOCOL-MESSAGE-FORMATS-BIND"}], "sections": [{"title": "\u6d88\u606f\u8fb9\u754c\u4e0e\u91cd\u590d\u5b57\u6bb5", "paragraphs": ["\u4e0b\u65b9\u5b8c\u6574\u5b9a\u4e49\u4fdd\u7559\u91cd\u590d\u9879\u3001\u8ba1\u6570\u4e0e\u6761\u4ef6\u5b57\u6bb5\u3002\u8868\u683c\u884c\u53f7\u8868\u793a\u6587\u6863\u4e2d\u7684\u5b57\u6bb5\u5b9a\u4e49\uff0c\u5e76\u975e\u56fa\u5b9a\u5b57\u8282\u504f\u79fb\u91cf\u3002\u6574\u6570\u7f16\u7801\u4e0e\u4ea4\u4e92\u6d41\u7a0b\u4ee5\u540c\u7248\u672c\u534f\u8bae\u7ae0\u8282\u4e3a\u51c6\u3002"]}], "direction": "F", "signature": "Bind (F)", "description": ["Bind \u662f\u524d\u7aef\u534f\u8bae\u6d88\u606f\uff0c\u8868\u793a Bind \u547d\u4ee4\u3002"], "manual_html": "
\n
\n
\n
Byte1('B')
\n
\n

\n

\u5c06\u8be5\u6d88\u606f\u6807\u8bc6\u4e3a Bind \u547d\u4ee4\u3002

\n

\n
\n
Int32
\n
\n

\n

\u6d88\u606f\u5185\u5bb9\u7684\u957f\u5ea6\uff08\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff09\uff0c\u5305\u62ec\u5176\u81ea\u8eab\u3002

\n

\n
\n
\u5b57\u7b26\u4e32
\n
\n

\n

\u76ee\u6807 portal \u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684 portal\uff09\u3002

\n

\n
\n
\u5b57\u7b26\u4e32
\n
\n

\n

\u6e90\u9884\u5907\u8bed\u53e5\u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684\u9884\u5907\u8bed\u53e5\uff09\u3002

\n

\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 C \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u53c2\u6570\uff0c\u6216\u8005\u6240\u6709\u53c2\u6570\u90fd\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u53c2\u6570\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u5b9e\u9645\u53c2\u6570\u6570\u91cf\u3002

\n

\n
\n
Int16[C]
\n
\n

\n

\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002

\n

\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u53c2\u6570\u503c\u7684\u6570\u91cf\uff08\u53ef\u4ee5\u4e3a\u96f6\uff09\u3002\u5fc5\u987b\u4e0e\u67e5\u8be2\u6240\u9700\u7684\u53c2\u6570\u6570\u91cf\u4e00\u81f4\u3002

\n

\n
\n
\n
\n

\u63a5\u4e0b\u6765\uff0c\u6bcf\u4e2a\u53c2\u6570\u90fd\u6709\u4ee5\u4e0b\u4e00\u5bf9\u5b57\u6bb5\uff1a

\n
\n
\n
Int32
\n
\n

\n

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\n

\n
\n
Byte n
\n
\n

\n

\u53c2\u6570\u503c\uff0c\u683c\u5f0f\u7531\u5bf9\u5e94\u7684\u683c\u5f0f\u4ee3\u7801\u6307\u660e\u3002n \u4e3a\u4e0a\u8ff0\u957f\u5ea6\u3002

\n

\n
\n
\n
\n

\u6700\u540e\u4e00\u4e2a\u53c2\u6570\u4e4b\u540e\u662f\u4ee5\u4e0b\u5b57\u6bb5\uff1a

\n
\n
\n
Int16
\n
\n

\n

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\n

\n
\n
Int16[R]
\n
\n

\n

\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002

\n

\n
\n
\n
\n
", "manual_path": "/docs/19/protocol-message-formats.html", "localization": {"status": "complete", "sources": [{"url": "/docs/19/datatype-json.html", "method": "same-major semantic node", "sha256": "3e9557f5a65838e08890f25b0cc62147ef278263efb1c2462b7906308771ae60", "language": "zh", "matched_nodes": ["#DATATYPE-JSON/div[19]/pre[27]/em[4]/code[0]"]}, {"url": "/docs/19/protocol-message-formats.html", "method": "same-major semantic node", "sha256": "c1bf02758e5b347662df055d3c8807b753fab16fc7238ed640efe95863588bff", "language": "zh", "matched_nodes": ["#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[1]/div[0]/dl[0]/dd[3]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[0]/dl[0]/dd[11]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[0]/dl[0]/dd[13]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[0]/dl[0]/dd[1]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[0]/dl[0]/dd[5]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[0]/dl[0]/dd[7]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[0]/dl[0]/dd[9]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[2]/dl[0]/dd[1]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[2]/dl[0]/dd[3]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[4]/dl[0]/dd[1]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/div[4]/dl[0]/dd[3]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/p[1]", "#PROTOCOL-MESSAGE-FORMATS/div[2]/dl[0]/dd[23]/p[3]"]}], "language": "zh", "original_text": {"/versions/19/description/0": "Bind is a frontend protocol message. Identifies the message as a Bind command.", "/versions/19/facts/0/label": "Direction", "/versions/19/facts/0/value": "Frontend \u2192 backend", "/versions/19/facts/1/label": "First wire field", "/versions/19/facts/2/label": "Field entries", "/versions/19/facts/3/label": "Documented flow contexts", "/versions/19/facts/3/value": "Extended Query; Function Call", "/versions/19/tables/0/title": "Wire fields in documented order", "/versions/19/related/0/label": "Protocol flow and exchange examples", "/versions/19/related/1/label": "Protocol overview", "/versions/19/related/2/label": "Extended Query", "/versions/19/related/3/label": "Function Call", "/versions/19/sections/0/title": "Framing and repetition", "/versions/19/tables/0/rows/0/c2": "Identifies the message as a Bind command.", "/versions/19/tables/0/rows/1/c2": "Length of message contents in bytes, including self.", "/versions/19/tables/0/rows/2/c1": "String", "/versions/19/tables/0/rows/2/c2": "The name of the destination portal (an empty string selects the unnamed portal).", "/versions/19/tables/0/rows/3/c1": "String", "/versions/19/tables/0/rows/3/c2": "The name of the source prepared statement (an empty string selects the unnamed prepared statement).", "/versions/19/tables/0/rows/4/c2": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters.", "/versions/19/tables/0/rows/5/c2": "The parameter format codes. Each must presently be zero (text) or one (binary).", "/versions/19/tables/0/rows/6/c2": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query.", "/versions/19/tables/0/rows/7/c2": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case.", "/versions/19/tables/0/rows/8/c1": "Byte n", "/versions/19/tables/0/rows/8/c2": "The value of the parameter, in the format indicated by the associated format code. n is the above length.", "/versions/19/tables/0/rows/9/c2": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query.", "/versions/19/tables/0/rows/10/c2": "The result-column format codes. Each must presently be zero (text) or one (binary).", "/versions/19/sections/0/paragraphs/0": "The complete definition below retains repetition, counts and conditional fields. A numbered table row is a documented field definition, not a fixed byte offset. Integer encodings and flow rules follow the same-version protocol chapter.", "/versions/19/tables/0/columns/0/label": "Position", "/versions/19/tables/0/columns/1/label": "Format", "/versions/19/tables/0/columns/2/label": "Meaning"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "33845647b81e667c1f4d5b11504bec503a95a24ba0639ed3a0032d151943ece6"}, "comparison_data": {"fields": [{"format": "Byte1('B')", "description": "Identifies the message as a Bind command."}, {"format": "Int32", "description": "Length of message contents in bytes, including self."}, {"format": "String", "description": "The name of the destination portal (an empty string selects the unnamed portal)."}, {"format": "String", "description": "The name of the source prepared statement (an empty string selects the unnamed prepared statement)."}, {"format": "Int16", "description": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters."}, {"format": "Int16[ C ]", "description": "The parameter format codes. Each must presently be zero (text) or one (binary)."}, {"format": "Int16", "description": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query."}, {"format": "Int32", "description": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case."}, {"format": "Byte n", "description": "The value of the parameter, in the format indicated by the associated format code. n is the above length."}, {"format": "Int16", "description": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query."}, {"format": "Int16[ R ]", "description": "The result-column format codes. Each must presently be zero (text) or one (binary)."}], "direction": "F"}, "comparison_hash": "c8b0c2d1702e2be51f0c868a6594754e9fee7debc6c10c6dab9aee46235c1a22", "manual_language": "zh"}, "20": {"facts": [{"label": "\u65b9\u5411", "value": "\u524d\u7aef \u2192 \u540e\u7aef"}, {"label": "\u9996\u4e2a\u7ebf\u4e0a\u534f\u8bae\u5b57\u6bb5", "value": "Byte1('B')"}, {"label": "\u5b57\u6bb5\u6761\u76ee", "value": "11"}, {"label": "\u624b\u518c\u4e2d\u7684\u4ea4\u4e92\u9636\u6bb5", "value": "\u6269\u5c55\u67e5\u8be2\uff1b\u51fd\u6570\u8c03\u7528"}], "fields": [{"format": "Byte1('B')", "description": "Identifies the message as a Bind command."}, {"format": "Int32", "description": "Length of message contents in bytes, including self."}, {"format": "String", "description": "The name of the destination portal (an empty string selects the unnamed portal)."}, {"format": "String", "description": "The name of the source prepared statement (an empty string selects the unnamed prepared statement)."}, {"format": "Int16", "description": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters."}, {"format": "Int16[ C ]", "description": "The parameter format codes. Each must presently be zero (text) or one (binary)."}, {"format": "Int16", "description": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query."}, {"format": "Int32", "description": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case."}, {"format": "Byte n", "description": "The value of the parameter, in the format indicated by the associated format code. n is the above length."}, {"format": "Int16", "description": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query."}, {"format": "Int16[ R ]", "description": "The result-column format codes. Each must presently be zero (text) or one (binary)."}], "tables": [{"key": "fields", "rows": [{"c0": "1", "c1": "Byte1('B')", "c2": "\u5c06\u8be5\u6d88\u606f\u6807\u8bc6\u4e3a Bind \u547d\u4ee4\u3002"}, {"c0": "2", "c1": "Int32", "c2": "\u6d88\u606f\u5185\u5bb9\u7684\u957f\u5ea6\uff08\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff09\uff0c\u5305\u62ec\u5176\u81ea\u8eab\u3002"}, {"c0": "3", "c1": "\u5b57\u7b26\u4e32", "c2": "\u76ee\u6807 portal \u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684 portal\uff09\u3002"}, {"c0": "4", "c1": "\u5b57\u7b26\u4e32", "c2": "\u6e90\u9884\u5907\u8bed\u53e5\u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684\u9884\u5907\u8bed\u53e5\uff09\u3002"}, {"c0": "5", "c1": "Int16", "c2": "\u540e\u7eed\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 C \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u53c2\u6570\uff0c\u6216\u8005\u6240\u6709\u53c2\u6570\u90fd\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u53c2\u6570\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u5b9e\u9645\u53c2\u6570\u6570\u91cf\u3002"}, {"c0": "6", "c1": "Int16[ C ]", "c2": "\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002"}, {"c0": "7", "c1": "Int16", "c2": "\u540e\u7eed\u53c2\u6570\u503c\u7684\u6570\u91cf\uff08\u53ef\u4ee5\u4e3a\u96f6\uff09\u3002\u5fc5\u987b\u4e0e\u67e5\u8be2\u6240\u9700\u7684\u53c2\u6570\u6570\u91cf\u4e00\u81f4\u3002"}, {"c0": "8", "c1": "Int32", "c2": "\u53c2\u6570\u503c\u7684\u957f\u5ea6\uff0c\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff08\u4e0d\u5305\u62ec\u6b64\u957f\u5ea6\u5b57\u6bb5\u672c\u8eab\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\u3002\u7279\u6b8a\u503c -1 \u8868\u793a NULL \u53c2\u6570\u503c\u3002\u4e3a NULL \u65f6\uff0c\u540e\u9762\u4e0d\u518d\u6709\u503c\u7684\u5b57\u8282\u3002"}, {"c0": "9", "c1": "Byte n", "c2": "\u53c2\u6570\u503c\uff0c\u683c\u5f0f\u7531\u5bf9\u5e94\u7684\u683c\u5f0f\u4ee3\u7801\u6307\u660e\u3002 n \u4e3a\u4e0a\u8ff0\u957f\u5ea6\u3002"}, {"c0": "10", "c1": "Int16", "c2": "\u540e\u7eed\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 R \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u7ed3\u679c\u5217\uff0c\u6216\u8005\u6240\u6709\u7ed3\u679c\u5217\u90fd\u5e94\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u7ed3\u679c\u5217\uff08\u5982\u679c\u6709\uff09\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u67e5\u8be2\u5b9e\u9645\u7684\u7ed3\u679c\u5217\u6570\u91cf\u3002"}, {"c0": "11", "c1": "Int16[ R ]", "c2": "\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002"}], "title": "\u6309\u624b\u518c\u987a\u5e8f\u6392\u5217\u7684\u7ebf\u4e0a\u534f\u8bae\u5b57\u6bb5", "columns": [{"key": "c0", "label": "\u4f4d\u7f6e"}, {"key": "c1", "label": "\u683c\u5f0f"}, {"key": "c2", "label": "\u542b\u4e49"}]}], "related": [{"url": "/docs/devel/protocol-flow.html", "label": "\u534f\u8bae\u6d41\u7a0b\u4e0e\u4ea4\u4e92\u793a\u4f8b"}, {"url": "/docs/devel/protocol-overview.html", "label": "\u534f\u8bae\u6982\u8ff0"}, {"url": "/docs/devel/protocol-flow.html#PROTOCOL-FLOW-EXT-QUERY", "label": "\u6269\u5c55\u67e5\u8be2"}, {"url": "/docs/devel/protocol-flow.html#PROTOCOL-FLOW-FUNCTION-CALL", "label": "\u51fd\u6570\u8c03\u7528"}], "release": {"ref": "https://ftp.postgresql.org/pub/snapshot/dev/postgresql-snapshot.tar.bz2", "label": "20devel", "major": "20", "channel": "devel", "revision": "4d3346909b201ac1648232cf290462a7070c119326f56196f1f0253ed80fae41"}, "sources": [{"url": "https://pg.center/docs/devel/protocol-message-formats.html#PROTOCOL-MESSAGE-FORMATS-BIND", "path": "protocol-message-formats.html", "label": "PostgreSQL 20 English manual", "sha256": "4e786b7a3a7f6dbe6547ece35c3281e7f1a33816b0613d2cdc3beec827362d4e", "language": "en", "original_url": "/docs/devel/protocol-message-formats.html#PROTOCOL-MESSAGE-FORMATS-BIND"}], "sections": [{"title": "\u6d88\u606f\u8fb9\u754c\u4e0e\u91cd\u590d\u5b57\u6bb5", "paragraphs": ["\u4e0b\u65b9\u5b8c\u6574\u5b9a\u4e49\u4fdd\u7559\u91cd\u590d\u9879\u3001\u8ba1\u6570\u4e0e\u6761\u4ef6\u5b57\u6bb5\u3002\u8868\u683c\u884c\u53f7\u8868\u793a\u6587\u6863\u4e2d\u7684\u5b57\u6bb5\u5b9a\u4e49\uff0c\u5e76\u975e\u56fa\u5b9a\u5b57\u8282\u504f\u79fb\u91cf\u3002\u6574\u6570\u7f16\u7801\u4e0e\u4ea4\u4e92\u6d41\u7a0b\u4ee5\u540c\u7248\u672c\u534f\u8bae\u7ae0\u8282\u4e3a\u51c6\u3002"]}], "direction": "F", "signature": "Bind (F)", "description": ["Bind \u662f\u524d\u7aef\u534f\u8bae\u6d88\u606f\uff0c\u8868\u793a Bind \u547d\u4ee4\u3002"], "manual_html": "
\n
\n
\n
Byte1('B')
\n
\n

\n

\u5c06\u8be5\u6d88\u606f\u6807\u8bc6\u4e3a Bind \u547d\u4ee4\u3002

\n

\n
\n
Int32
\n
\n

\n

\u6d88\u606f\u5185\u5bb9\u7684\u957f\u5ea6\uff08\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff09\uff0c\u5305\u62ec\u5176\u81ea\u8eab\u3002

\n

\n
\n
\u5b57\u7b26\u4e32
\n
\n

\n

\u76ee\u6807 portal \u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684 portal\uff09\u3002

\n

\n
\n
\u5b57\u7b26\u4e32
\n
\n

\n

\u6e90\u9884\u5907\u8bed\u53e5\u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684\u9884\u5907\u8bed\u53e5\uff09\u3002

\n

\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 C \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u53c2\u6570\uff0c\u6216\u8005\u6240\u6709\u53c2\u6570\u90fd\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u53c2\u6570\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u5b9e\u9645\u53c2\u6570\u6570\u91cf\u3002

\n

\n
\n
Int16[C]
\n
\n

\n

\u53c2\u6570\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002

\n

\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u53c2\u6570\u503c\u7684\u6570\u91cf\uff08\u53ef\u4ee5\u4e3a\u96f6\uff09\u3002\u5fc5\u987b\u4e0e\u67e5\u8be2\u6240\u9700\u7684\u53c2\u6570\u6570\u91cf\u4e00\u81f4\u3002

\n

\n
\n
\n
\n

\u63a5\u4e0b\u6765\uff0c\u6bcf\u4e2a\u53c2\u6570\u90fd\u6709\u4ee5\u4e0b\u4e00\u5bf9\u5b57\u6bb5\uff1a

\n
\n
\n
Int32
\n
\n

\n

\u53c2\u6570\u503c\u7684\u957f\u5ea6\uff0c\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff08\u4e0d\u5305\u62ec\u6b64\u957f\u5ea6\u5b57\u6bb5\u672c\u8eab\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\u3002\u7279\u6b8a\u503c -1 \u8868\u793a NULL \u53c2\u6570\u503c\u3002\u4e3a NULL \u65f6\uff0c\u540e\u9762\u4e0d\u518d\u6709\u503c\u7684\u5b57\u8282\u3002

\n

\n
\n
Byte n
\n
\n

\n

\u53c2\u6570\u503c\uff0c\u683c\u5f0f\u7531\u5bf9\u5e94\u7684\u683c\u5f0f\u4ee3\u7801\u6307\u660e\u3002n \u4e3a\u4e0a\u8ff0\u957f\u5ea6\u3002

\n

\n
\n
\n
\n

\u6700\u540e\u4e00\u4e2a\u53c2\u6570\u4e4b\u540e\u662f\u4ee5\u4e0b\u5b57\u6bb5\uff1a

\n
\n
\n
Int16
\n
\n

\n

\u540e\u7eed\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 R \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u7ed3\u679c\u5217\uff0c\u6216\u8005\u6240\u6709\u7ed3\u679c\u5217\u90fd\u5e94\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u7ed3\u679c\u5217\uff08\u5982\u679c\u6709\uff09\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u67e5\u8be2\u5b9e\u9645\u7684\u7ed3\u679c\u5217\u6570\u91cf\u3002

\n

\n
\n
Int16[R]
\n
\n

\n

\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002

\n

\n
\n
\n
\n
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Identifies the message as a Bind command.", "/category": "Frontend messages", "/versions/20/description/0": "Bind is a frontend protocol message. Identifies the message as a Bind command.", "/versions/20/facts/0/label": "Direction", "/versions/20/facts/0/value": "Frontend \u2192 backend", "/versions/20/facts/1/label": "First wire field", "/versions/20/facts/2/label": "Field entries", "/versions/20/facts/3/label": "Documented flow contexts", "/versions/20/facts/3/value": "Extended Query; Function Call", "/versions/20/tables/0/title": "Wire fields in documented order", "/versions/20/related/0/label": "Protocol flow and exchange examples", "/versions/20/related/1/label": "Protocol overview", "/versions/20/related/2/label": "Extended Query", "/versions/20/related/3/label": "Function Call", "/versions/20/sections/0/title": "Framing and repetition", "/versions/20/tables/0/rows/0/c2": "Identifies the message as a Bind command.", "/versions/20/tables/0/rows/1/c2": "Length of message contents in bytes, including self.", "/versions/20/tables/0/rows/2/c1": "String", "/versions/20/tables/0/rows/2/c2": "The name of the destination portal (an empty string selects the unnamed portal).", "/versions/20/tables/0/rows/3/c1": "String", "/versions/20/tables/0/rows/3/c2": "The name of the source prepared statement (an empty string selects the unnamed prepared statement).", "/versions/20/tables/0/rows/4/c2": "The number of parameter format codes that follow (denoted C below). This can be zero to indicate that there are no parameters or that the parameters all use the default format (text); or one, in which case the specified format code is applied to all parameters; or it can equal the actual number of parameters.", "/versions/20/tables/0/rows/5/c2": "The parameter format codes. Each must presently be zero (text) or one (binary).", "/versions/20/tables/0/rows/6/c2": "The number of parameter values that follow (possibly zero). This must match the number of parameters needed by the query.", "/versions/20/tables/0/rows/7/c2": "The length of the parameter value, in bytes (this count does not include itself). Can be zero. As a special case, -1 indicates a NULL parameter value. No value bytes follow in the NULL case.", "/versions/20/tables/0/rows/8/c1": "Byte n", "/versions/20/tables/0/rows/8/c2": "The value of the parameter, in the format indicated by the associated format code. n is the above length.", "/versions/20/tables/0/rows/9/c2": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query.", "/versions/20/tables/0/rows/10/c2": "The result-column format codes. Each must presently be zero (text) or one (binary).", "/versions/20/sections/0/paragraphs/0": "The complete definition below retains repetition, counts and conditional fields. A numbered table row is a documented field definition, not a fixed byte offset. Integer encodings and flow rules follow the same-version protocol chapter.", "/versions/20/tables/0/columns/0/label": "Position", "/versions/20/tables/0/columns/1/label": "Format", "/versions/20/tables/0/columns/2/label": "Meaning"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "63341d1a4fc7c8e127dead28d80acd122621f86db5e1e1463d946ed50ceacb58"}, "comparison_data": {"fields": [{"format": "Byte1('B')", "description": "Identifies the message as a Bind command."}, {"format": "Int32", "description": "Length of message contents in bytes, including self."}, {"format": "String", "description": "The name of the destination portal (an empty string selects the unnamed portal)."}, {"format": "String", "description": "The name of the source prepared statement (an empty string selects the unnamed prepared statement)."}, {"format": "Int16", "description": "The number of parameter format codes that follow (denoted C below). 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[{"title": "\u6d88\u606f\u8fb9\u754c\u4e0e\u91cd\u590d\u5b57\u6bb5", "paragraphs": ["\u4e0b\u65b9\u5b8c\u6574\u5b9a\u4e49\u4fdd\u7559\u91cd\u590d\u9879\u3001\u8ba1\u6570\u4e0e\u6761\u4ef6\u5b57\u6bb5\u3002\u8868\u683c\u884c\u53f7\u8868\u793a\u6587\u6863\u4e2d\u7684\u5b57\u6bb5\u5b9a\u4e49\uff0c\u5e76\u975e\u56fa\u5b9a\u5b57\u8282\u504f\u79fb\u91cf\u3002\u6574\u6570\u7f16\u7801\u4e0e\u4ea4\u4e92\u6d41\u7a0b\u4ee5\u540c\u7248\u672c\u534f\u8bae\u7ae0\u8282\u4e3a\u51c6\u3002"]}], "direction": "F", "signature": "Bind (F)", "description": ["Bind \u662f\u524d\u7aef\u534f\u8bae\u6d88\u606f\uff0c\u8868\u793a Bind \u547d\u4ee4\u3002"], "manual_html": "
\n
\n
\n
Byte1('B')
\n
\n

\n

\u5c06\u8be5\u6d88\u606f\u6807\u8bc6\u4e3a Bind \u547d\u4ee4\u3002

\n

\n
\n
Int32
\n
\n

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\u6d88\u606f\u5185\u5bb9\u7684\u957f\u5ea6\uff08\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff09\uff0c\u5305\u62ec\u5176\u81ea\u8eab\u3002

\n

\n
\n
\u5b57\u7b26\u4e32
\n
\n

\n

\u76ee\u6807 portal \u7684\u540d\u79f0\uff08\u7a7a\u5b57\u7b26\u4e32\u9009\u62e9\u672a\u547d\u540d\u7684 portal\uff09\u3002

\n

\n
\n
\u5b57\u7b26\u4e32
\n
\n

\n

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\n

\n
\n
Int16
\n
\n

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\n

\n
\n
Int16[C]
\n
\n

\n

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\n

\n
\n
Int16
\n
\n

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\n

\n
\n
\n
\n

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\n
\n
\n
Int32
\n
\n

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\n

\n
\n
Byte n
\n
\n

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\n

\n
\n
\n
\n

\u6700\u540e\u4e00\u4e2a\u53c2\u6570\u4e4b\u540e\u662f\u4ee5\u4e0b\u5b57\u6bb5\uff1a

\n
\n
\n
Int16
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\n

\n

\u540e\u7eed\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u7684\u6570\u91cf\uff08\u4e0b\u6587\u4ee5 R \u8868\u793a\uff09\u3002\u53ef\u4ee5\u4e3a\u96f6\uff0c\u8868\u793a\u6ca1\u6709\u7ed3\u679c\u5217\uff0c\u6216\u8005\u6240\u6709\u7ed3\u679c\u5217\u90fd\u5e94\u4f7f\u7528\u9ed8\u8ba4\u683c\u5f0f\uff08\u6587\u672c\uff09\uff1b\u4e5f\u53ef\u4ee5\u4e3a\u4e00\uff0c\u6b64\u65f6\u6307\u5b9a\u7684\u683c\u5f0f\u4ee3\u7801\u5e94\u7528\u4e8e\u6240\u6709\u7ed3\u679c\u5217\uff08\u5982\u679c\u6709\uff09\uff1b\u8fd8\u53ef\u4ee5\u7b49\u4e8e\u67e5\u8be2\u5b9e\u9645\u7684\u7ed3\u679c\u5217\u6570\u91cf\u3002

\n

\n
\n
Int16[R]
\n
\n

\n

\u7ed3\u679c\u5217\u683c\u5f0f\u4ee3\u7801\u3002\u76ee\u524d\u6bcf\u4e2a\u683c\u5f0f\u4ee3\u7801\u5fc5\u987b\u4e3a\u96f6\uff08\u6587\u672c\uff09\u6216\u4e00\uff08\u4e8c\u8fdb\u5236\uff09\u3002

\n

\n
\n
\n
\n
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Identifies the message as a Bind command.", "/versions/18/facts/0/label": "Direction", "/versions/18/facts/0/value": "Frontend \u2192 backend", "/versions/18/facts/1/label": "First wire field", "/versions/18/facts/2/label": "Field entries", "/versions/18/facts/3/label": "Documented flow contexts", "/versions/18/facts/3/value": "Extended Query; Function Call", "/versions/18/tables/0/title": "Wire fields in documented order", "/versions/18/related/0/label": "Protocol flow and exchange examples", "/versions/18/related/1/label": "Protocol overview", "/versions/18/related/2/label": "Extended Query", "/versions/18/related/3/label": "Function Call", "/versions/18/sections/0/title": "Framing and repetition", "/versions/18/tables/0/rows/0/c2": "Identifies the message as a Bind command.", "/versions/18/tables/0/rows/1/c2": "Length of message contents in bytes, including self.", "/versions/18/tables/0/rows/2/c1": "String", "/versions/18/tables/0/rows/2/c2": "The name of the destination portal (an empty string selects the unnamed portal).", "/versions/18/tables/0/rows/3/c1": "String", "/versions/18/tables/0/rows/3/c2": "The name of the source prepared statement (an empty string selects the unnamed prepared statement).", "/versions/18/tables/0/rows/4/c2": "The number of parameter format codes that follow (denoted C below). 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No value bytes follow in the NULL case."}, {"format": "Byte n", "description": "The value of the parameter, in the format indicated by the associated format code. n is the above length."}, {"format": "Int16", "description": "The number of result-column format codes that follow (denoted R below). This can be zero to indicate that there are no result columns or that the result columns should all use the default format (text); or one, in which case the specified format code is applied to all result columns (if any); or it can equal the actual number of result columns of the query."}, {"format": "Int16[ R ]", "description": "The result-column format codes. Each must presently be zero (text) or one (binary)."}], "direction": "F"}, "comparison_hash": "c8b0c2d1702e2be51f0c868a6594754e9fee7debc6c10c6dab9aee46235c1a22", "manual_language": "zh"}, "comparison": {"left": "17", "right": "18", "status": "unchanged", "diff": ""}}