{"kind": "metric", "major": "18", "item": {"slug": "pg_stat_io-op_bytes", "name": "pg_stat_io.op_bytes", "name_zh": "", "category": "pg_stat_io", "summary": "\u6240\u9009\u7248\u672c\u672a\u6536\u5f55\u6b64\u6761\u76ee\u3002", "aliases": ["op_bytes", "pg_stat_io"], "content_hash": "aec37c019d44c3672e1aead5d7f2ed5021434e9ea4e121ad7b3132042df22a97", "versions": {"16": {"view": "pg_stat_io", "facts": [{"label": "\u89c6\u56fe", "value": "pg_stat_io"}, {"label": "\u5b57\u6bb5", "value": "op_bytes"}, {"label": "SQL \u7c7b\u578b", "value": "bigint"}, {"label": "\u5b57\u6bb5\u5b9a\u4e49\u8bb0\u8f7d\u7684\u5355\u4f4d", "value": "bytes"}, {"label": "\u91cd\u7f6e\u6761\u4ef6", "value": "\u8fd9\u4e9b\u7edf\u8ba1\u4fe1\u606f\u4e0a\u6b21\u88ab\u91cd\u7f6e\u7684\u65f6\u95f4\u3002"}], "field": "op_bytes", "tables": [], "related": [{"url": "/wiki/catalog/pg_stat_io/?v=16", "label": "pg_stat_io \u5b57\u6bb5"}, {"url": "/docs/16/monitoring-stats.html", "label": "\u7edf\u8ba1\u6536\u96c6\u4e0e\u91cd\u7f6e\u51fd\u6570"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v16.15/postgresql-16.15.tar.bz2", "label": "16.15", "major": "16", "channel": "stable", "revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "sources": [{"url": "/docs/16/monitoring-stats.html#PG-STAT-IO-VIEW", "path": "monitoring-stats.html", "label": "PostgreSQL 16 English manual", "sha256": "a4c274defe8a41ff2895040cd542b5499063b844669ff3336de1a1317c3fe086"}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/16/monitoring-stats.html#", "anchor": "", "column": "op_bytes", "locale": "zh-Hans", "version": "16", "build_id": 103, "page_key": "monitoring-stats.html", "extraction": "exact-catalog-field", "source_hash": "bc7073c776c27e13a8c84203c68f4913e8ee7601c38364f2b4e397c4851c8e08", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:80579a071736780f9c4022bb5148e1fb1256f1a33591306af67816e9e9bf3a9b"}, "body_sha256": "5a15d9c4410c5a647b8353118667288deaeac11be71ecaa76a2594c2def4bb7a", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "facts_zh": [{"label": "\u89c6\u56fe", "value": "pg_stat_io"}, {"label": "\u5b57\u6bb5", "value": "op_bytes"}, {"label": "SQL \u7c7b\u578b", "value": "bigint"}, {"label": "\u5b57\u6bb5\u5b9a\u4e49\u8bb0\u8f7d\u7684\u5355\u4f4d", "value": "bytes"}, {"label": "\u91cd\u7f6e\u6761\u4ef6", "value": "\u8fd9\u4e9b\u7edf\u8ba1\u4fe1\u606f\u4e0a\u6b21\u88ab\u91cd\u7f6e\u7684\u65f6\u95f4\u3002"}], "sections": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["pg_stat_io \u89c6\u56fe\u4e3a\u540e\u7aef\u7c7b\u578b\u3001\u76ee\u6807 I/O \u5bf9\u8c61\u548c I/O \u4e0a\u4e0b\u6587\u7684\u6bcf\u79cd\u7ec4\u5408\u63d0\u4f9b\u4e00\u884c\uff0c\u663e\u793a\u6574\u4e2a\u96c6\u7fa4\u7684 I/O \u7edf\u8ba1\u4fe1\u606f\uff1b\u65e0\u610f\u4e49\u7684\u7ec4\u5408\u4f1a\u7701\u7565\u3002\u76ee\u524d\u8ddf\u8e2a\u5173\u7cfb\uff08\u5982\u8868\u3001\u7d22\u5f15\uff09\u7684 I/O\uff0c\u4f46\u4e0d\u8ddf\u8e2a\u7ed5\u8fc7\u5171\u4eab\u7f13\u51b2\u533a\u7684\u5173\u7cfb I/O\uff08\u4f8b\u5982\u5c06\u8868\u4ece\u4e00\u4e2a\u8868\u7a7a\u95f4\u79fb\u52a8\u5230\u53e6\u4e00\u4e2a\u8868\u7a7a\u95f4\uff09\u3002"]}, {"title": "\u91c7\u96c6\u4e0e\u91cd\u7f6e\u8bed\u4e49", "paragraphs": ["\u91cd\u7f6e\u8303\u56f4\u548c\u53ef\u89c1\u6027\u8bf7\u53c2\u9605\u4e0b\u65b9\u540c\u7248\u672c\u7684\u7edf\u8ba1\u4fe1\u606f\u6536\u96c6\u4e0e\u89c6\u56fe\u6587\u6863\u3002\u4e0d\u6839\u636e\u5b57\u6bb5\u540d\u79f0\u63a8\u65ad\u5404\u5b57\u6bb5\u7684\u91cd\u7f6e\u89c4\u5219\u3002"]}, {"code": "SELECT op_bytes FROM pg_catalog.pg_stat_io;", "title": "\u67e5\u770b\u6b64\u5b57\u6bb5", 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"\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["pg_stat_io \u89c6\u56fe\u4e3a\u540e\u7aef\u7c7b\u578b\u3001\u76ee\u6807 I/O \u5bf9\u8c61\u548c I/O \u4e0a\u4e0b\u6587\u7684\u6bcf\u79cd\u7ec4\u5408\u63d0\u4f9b\u4e00\u884c\uff0c\u663e\u793a\u6574\u4e2a\u96c6\u7fa4\u7684 I/O \u7edf\u8ba1\u4fe1\u606f\uff1b\u65e0\u610f\u4e49\u7684\u7ec4\u5408\u4f1a\u7701\u7565\u3002\u76ee\u524d\u8ddf\u8e2a\u5173\u7cfb\uff08\u5982\u8868\u3001\u7d22\u5f15\uff09\u7684 I/O\uff0c\u4f46\u4e0d\u8ddf\u8e2a\u7ed5\u8fc7\u5171\u4eab\u7f13\u51b2\u533a\u7684\u5173\u7cfb I/O\uff08\u4f8b\u5982\u5c06\u8868\u4ece\u4e00\u4e2a\u8868\u7a7a\u95f4\u79fb\u52a8\u5230\u53e6\u4e00\u4e2a\u8868\u7a7a\u95f4\uff09\u3002"]}, {"title": "\u91c7\u96c6\u4e0e\u91cd\u7f6e\u8bed\u4e49", "paragraphs": ["\u91cd\u7f6e\u8303\u56f4\u548c\u53ef\u89c1\u6027\u8bf7\u53c2\u9605\u4e0b\u65b9\u540c\u7248\u672c\u7684\u7edf\u8ba1\u4fe1\u606f\u6536\u96c6\u4e0e\u89c6\u56fe\u6587\u6863\u3002\u4e0d\u6839\u636e\u5b57\u6bb5\u540d\u79f0\u63a8\u65ad\u5404\u5b57\u6bb5\u7684\u91cd\u7f6e\u89c4\u5219\u3002"]}, {"code": "SELECT op_bytes FROM pg_catalog.pg_stat_io;", "title": "\u67e5\u770b\u6b64\u5b57\u6bb5", "paragraphs": ["\u793a\u4f8b\u67e5\u8be2\uff1b\u4e0d\u8868\u793a\u5df2\u6267\u884c\uff0c\u4e5f\u4e0d\u63d0\u4f9b\u5b9e\u6d4b\u503c\u3002"]}], "description_zh": "\u6bcf\u4e2a I/O \u8bfb\u53d6\u3001\u5199\u5165\u6216\u6269\u5c55\u5355\u4f4d\u7684\u5b57\u8282\u6570\u3002\n\n\u5173\u7cfb\u6570\u636e\u7684\u8bfb\u53d6\u3001\u5199\u5165\u548c\u6269\u5c55\u4ee5 block_size \u4e3a\u5355\u4f4d\u8fdb\u884c\uff0c\u8be5\u503c\u6765\u81ea\u6784\u5efa\u65f6\u53c2\u6570 BLCKSZ\uff0c\u9ed8\u8ba4\u503c\u4e3a 8192\u3002", "description_zh_html": "<p>pg_stat_io.op_bytes \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_io</code></dd><dt>\u5b57\u6bb5</dt><dd><code>op_bytes</code></dd><dt>SQL \u7c7b\u578b</dt><dd><code>bigint</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><p>\u6bcf\u4e2a I/O \u8bfb\u53d6\u3001\u5199\u5165\u6216\u6269\u5c55\u5355\u4f4d\u7684\u5b57\u8282\u6570\u3002\n\n\u5173\u7cfb\u6570\u636e\u7684\u8bfb\u53d6\u3001\u5199\u5165\u548c\u6269\u5c55\u4ee5 block_size \u4e3a\u5355\u4f4d\u8fdb\u884c\uff0c\u8be5\u503c\u6765\u81ea\u6784\u5efa\u65f6\u53c2\u6570 BLCKSZ\uff0c\u9ed8\u8ba4\u503c\u4e3a 8192\u3002</p><p><a href=\"/zh/docs/16/monitoring-stats.html#\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "\u6bcf\u4e2a I/O \u8bfb\u53d6\u3001\u5199\u5165\u6216\u6269\u5c55\u5355\u4f4d\u7684\u5b57\u8282\u6570\u3002\n\n\u5173\u7cfb\u6570\u636e\u7684\u8bfb\u53d6\u3001\u5199\u5165\u548c\u6269\u5c55\u4ee5 block_size \u4e3a\u5355\u4f4d\u8fdb\u884c\uff0c\u8be5\u503c\u6765\u81ea\u6784\u5efa\u65f6\u53c2\u6570 BLCKSZ\uff0c\u9ed8\u8ba4\u503c\u4e3a 8192\u3002", "version": "16", "link_map": {"/zh/docs/16/monitoring-stats.html": "/docs/16/monitoring-stats.html"}, "body_html": "<p>pg_stat_io.op_bytes \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_io</code></dd><dt>\u5b57\u6bb5</dt><dd><code>op_bytes</code></dd><dt>SQL \u7c7b\u578b</dt><dd><code>bigint</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><p>\u6bcf\u4e2a I/O \u8bfb\u53d6\u3001\u5199\u5165\u6216\u6269\u5c55\u5355\u4f4d\u7684\u5b57\u8282\u6570\u3002\n\n\u5173\u7cfb\u6570\u636e\u7684\u8bfb\u53d6\u3001\u5199\u5165\u548c\u6269\u5c55\u4ee5 block_size \u4e3a\u5355\u4f4d\u8fdb\u884c\uff0c\u8be5\u503c\u6765\u81ea\u6784\u5efa\u65f6\u53c2\u6570 BLCKSZ\uff0c\u9ed8\u8ba4\u503c\u4e3a 8192\u3002</p><p><a href=\"/zh/docs/16/monitoring-stats.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "6d06874cad1db2fee5a1a7c83588b8a77cbfb8a98bca5dca0dec8db9259db05f", "content_hash": "45160865f58cabd809fc83dc376fd56db851ed3e3144120b0c8688ce29d78fd7", "source_database": "center", "source_revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "signature": "SELECT op_bytes FROM pg_catalog.pg_stat_io;", "tables_zh": [], "documented": true, "description": ["\u6bcf\u4e2a I/O \u8bfb\u53d6\u3001\u5199\u5165\u6216\u6269\u5c55\u5355\u4f4d\u7684\u5b57\u8282\u6570\u3002\n\n\u5173\u7cfb\u6570\u636e\u7684\u8bfb\u53d6\u3001\u5199\u5165\u548c\u6269\u5c55\u4ee5 block_size \u4e3a\u5355\u4f4d\u8fdb\u884c\uff0c\u8be5\u503c\u6765\u81ea\u6784\u5efa\u65f6\u53c2\u6570 BLCKSZ\uff0c\u9ed8\u8ba4\u503c\u4e3a 8192\u3002"], "manual_html": "", "manual_path": "/docs/16/monitoring-stats.html", "sections_zh": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["pg_stat_io \u89c6\u56fe\u4e3a\u540e\u7aef\u7c7b\u578b\u3001\u76ee\u6807 I/O \u5bf9\u8c61\u548c I/O \u4e0a\u4e0b\u6587\u7684\u6bcf\u79cd\u7ec4\u5408\u63d0\u4f9b\u4e00\u884c\uff0c\u663e\u793a\u6574\u4e2a\u96c6\u7fa4\u7684 I/O \u7edf\u8ba1\u4fe1\u606f\uff1b\u65e0\u610f\u4e49\u7684\u7ec4\u5408\u4f1a\u7701\u7565\u3002\u76ee\u524d\u8ddf\u8e2a\u5173\u7cfb\uff08\u5982\u8868\u3001\u7d22\u5f15\uff09\u7684 I/O\uff0c\u4f46\u4e0d\u8ddf\u8e2a\u7ed5\u8fc7\u5171\u4eab\u7f13\u51b2\u533a\u7684\u5173\u7cfb I/O\uff08\u4f8b\u5982\u5c06\u8868\u4ece\u4e00\u4e2a\u8868\u7a7a\u95f4\u79fb\u52a8\u5230\u53e6\u4e00\u4e2a\u8868\u7a7a\u95f4\uff09\u3002"]}, {"title": "\u91c7\u96c6\u4e0e\u91cd\u7f6e\u8bed\u4e49", "paragraphs": ["\u91cd\u7f6e\u8303\u56f4\u548c\u53ef\u89c1\u6027\u8bf7\u53c2\u9605\u4e0b\u65b9\u540c\u7248\u672c\u7684\u7edf\u8ba1\u4fe1\u606f\u6536\u96c6\u4e0e\u89c6\u56fe\u6587\u6863\u3002\u4e0d\u6839\u636e\u5b57\u6bb5\u540d\u79f0\u63a8\u65ad\u5404\u5b57\u6bb5\u7684\u91cd\u7f6e\u89c4\u5219\u3002"]}, {"code": "SELECT op_bytes FROM pg_catalog.pg_stat_io;", "title": "\u67e5\u770b\u6b64\u5b57\u6bb5", "paragraphs": ["\u793a\u4f8b\u67e5\u8be2\uff1b\u4e0d\u8868\u793a\u5df2\u6267\u884c\uff0c\u4e5f\u4e0d\u63d0\u4f9b\u5b9e\u6d4b\u503c\u3002"]}], "source_only": false, "localization": {"status": "complete", "sources": [{"url": "/docs/16/monitoring-stats.html", "method": "same-major semantic node", "sha256": "602e708943074767e7aad252e93938422e388dae22bd99fc583e93f7689395ba", "language": "zh", "matched_nodes": ["#MONITORING-STATS/div[17]/div[4]/div[1]/table[0]/tbody[2]/tr[17]/td[0]/p[1]"]}], "language": "zh", "original_text": {"/versions/16/description/0": "The number of bytes per unit of I/O read, written, or extended.\n\nRelation data reads, writes, and extends are done in block_size units, derived from the build-time parameter BLCKSZ, which is 8192 by default.", "/versions/16/facts/0/label": "View", "/versions/16/facts/1/label": "Field", "/versions/16/facts/2/label": "SQL type", "/versions/16/facts/3/label": "Units named in the field definition", "/versions/16/facts/4/label": "Reset observation", "/versions/16/facts/4/value": "Time at which these statistics were last reset.", "/versions/16/related/0/label": "pg_stat_io columns", "/versions/16/related/1/label": "Statistics collection and reset functions", "/versions/16/sections/0/title": "View semantics", "/versions/16/sections/1/title": "Collection and reset context", "/versions/16/sections/2/title": "Inspect this field", "/versions/16/sections/0/paragraphs/0": "The pg_stat_io view will contain one row for each combination of backend type, target I/O object, and I/O context, showing cluster-wide I/O statistics. Combinations which do not make sense are omitted.\n\nCurrently, I/O on relations (e.g. tables, indexes) is tracked. However, relation I/O which bypasses shared buffers (e.g. when moving a table from one tablespace to another) is currently not tracked.", "/versions/16/sections/1/paragraphs/0": "Read the same-version statistics collection and view documentation below for reset scope and visibility. No per-field reset rule is inferred from the field name.", "/versions/16/sections/2/paragraphs/0": "Example query; no execution result or measured value is asserted."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "94ffcfec85e682583493e635c333b0ad386643102eb27f891546a5ded7409576", "canonical_center_text_hash": "45160865f58cabd809fc83dc376fd56db851ed3e3144120b0c8688ce29d78fd7"}, "description_zh": "\u6bcf\u4e2a I/O \u8bfb\u53d6\u3001\u5199\u5165\u6216\u6269\u5c55\u5355\u4f4d\u7684\u5b57\u8282\u6570\u3002\n\n\u5173\u7cfb\u6570\u636e\u7684\u8bfb\u53d6\u3001\u5199\u5165\u548c\u6269\u5c55\u4ee5 block_size \u4e3a\u5355\u4f4d\u8fdb\u884c\uff0c\u8be5\u503c\u6765\u81ea\u6784\u5efa\u65f6\u53c2\u6570 BLCKSZ\uff0c\u9ed8\u8ba4\u503c\u4e3a 8192\u3002", "comparison_data": {"view": "pg_stat_io", "field": "op_bytes", "sql_type": "bigint", "units_mentioned": ["bytes"]}, "comparison_hash": "46e9d3530a117c181e304599e8a6d6e96c07171b7e30e0c31adae3aec8c79b75", "manual_language": "zh", "units_mentioned": ["bytes"], "description_zh_html": "<p>pg_stat_io.op_bytes \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_io</code></dd><dt>\u5b57\u6bb5</dt><dd><code>op_bytes</code></dd><dt>SQL \u7c7b\u578b</dt><dd><code>bigint</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><p>\u6bcf\u4e2a I/O \u8bfb\u53d6\u3001\u5199\u5165\u6216\u6269\u5c55\u5355\u4f4d\u7684\u5b57\u8282\u6570\u3002\n\n\u5173\u7cfb\u6570\u636e\u7684\u8bfb\u53d6\u3001\u5199\u5165\u548c\u6269\u5c55\u4ee5 block_size \u4e3a\u5355\u4f4d\u8fdb\u884c\uff0c\u8be5\u503c\u6765\u81ea\u6784\u5efa\u65f6\u53c2\u6570 BLCKSZ\uff0c\u9ed8\u8ba4\u503c\u4e3a 8192\u3002</p><p><a href=\"/zh/docs/16/monitoring-stats.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "17": {"view": "pg_stat_io", "facts": [{"label": "\u89c6\u56fe", "value": "pg_stat_io"}, {"label": "\u5b57\u6bb5", "value": "op_bytes"}, {"label": "SQL \u7c7b\u578b", "value": "bigint"}, {"label": "\u5b57\u6bb5\u5b9a\u4e49\u8bb0\u8f7d\u7684\u5355\u4f4d", "value": "bytes"}, {"label": "\u91cd\u7f6e\u6761\u4ef6", "value": "\u8fd9\u4e9b\u7edf\u8ba1\u4fe1\u606f\u4e0a\u6b21\u88ab\u91cd\u7f6e\u7684\u65f6\u95f4\u3002"}], "field": "op_bytes", "tables": [], "related": [{"url": "/wiki/catalog/pg_stat_io/?v=17", "label": "pg_stat_io \u5b57\u6bb5"}, {"url": "/docs/17/monitoring-stats.html", "label": "\u7edf\u8ba1\u6536\u96c6\u4e0e\u91cd\u7f6e\u51fd\u6570"}], "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": "/docs/17/monitoring-stats.html#PG-STAT-IO-VIEW", "path": "monitoring-stats.html", "label": "PostgreSQL 17 English manual", "sha256": "007af6e8ab39b925963273ec3ba7f06f8ee6fbfaad821f07a1dc78383dbb9b99"}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/17/monitoring-stats.html#", "anchor": "", "column": "op_bytes", "locale": "zh-Hans", "version": "17", "build_id": 105, "page_key": "monitoring-stats.html", "extraction": "exact-catalog-field", "source_hash": "ad63a74417862b28cba663bd779186633505e5da37845bce5f2e4bf62ee55c2b", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:7340767258d21c21b36f373f1fff6bab2be18e0daca13a865129db6105c09efd"}, "body_sha256": "b9b7351d9a2467962f70c8b0b415274798128fca4ce96f4649a64bc90cdfc756", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "facts_zh": [{"label": "\u89c6\u56fe", "value": "pg_stat_io"}, {"label": "\u5b57\u6bb5", "value": "op_bytes"}, {"label": "SQL \u7c7b\u578b", "value": "bigint"}, {"label": "\u5b57\u6bb5\u5b9a\u4e49\u8bb0\u8f7d\u7684\u5355\u4f4d", "value": "bytes"}, {"label": "\u91cd\u7f6e\u6761\u4ef6", "value": "\u8fd9\u4e9b\u7edf\u8ba1\u4fe1\u606f\u4e0a\u6b21\u88ab\u91cd\u7f6e\u7684\u65f6\u95f4\u3002"}], "sections": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["pg_stat_io \u89c6\u56fe\u4e3a\u540e\u7aef\u7c7b\u578b\u3001\u76ee\u6807 I/O \u5bf9\u8c61\u548c I/O \u4e0a\u4e0b\u6587\u7684\u6bcf\u79cd\u7ec4\u5408\u63d0\u4f9b\u4e00\u884c\uff0c\u663e\u793a\u6574\u4e2a\u96c6\u7fa4\u7684 I/O \u7edf\u8ba1\u4fe1\u606f\uff1b\u65e0\u610f\u4e49\u7684\u7ec4\u5408\u4f1a\u7701\u7565\u3002\u76ee\u524d\u8ddf\u8e2a\u5173\u7cfb\uff08\u5982\u8868\u3001\u7d22\u5f15\uff09\u7684 I/O\uff0c\u4f46\u4e0d\u8ddf\u8e2a\u7ed5\u8fc7\u5171\u4eab\u7f13\u51b2\u533a\u7684\u5173\u7cfb I/O\uff08\u4f8b\u5982\u5c06\u8868\u4ece\u4e00\u4e2a\u8868\u7a7a\u95f4\u79fb\u52a8\u5230\u53e6\u4e00\u4e2a\u8868\u7a7a\u95f4\uff09\u3002"]}, {"title": "\u91c7\u96c6\u4e0e\u91cd\u7f6e\u8bed\u4e49", "paragraphs": ["\u91cd\u7f6e\u8303\u56f4\u548c\u53ef\u89c1\u6027\u8bf7\u53c2\u9605\u4e0b\u65b9\u540c\u7248\u672c\u7684\u7edf\u8ba1\u4fe1\u606f\u6536\u96c6\u4e0e\u89c6\u56fe\u6587\u6863\u3002\u4e0d\u6839\u636e\u5b57\u6bb5\u540d\u79f0\u63a8\u65ad\u5404\u5b57\u6bb5\u7684\u91cd\u7f6e\u89c4\u5219\u3002"]}, {"code": "SELECT op_bytes FROM pg_catalog.pg_stat_io;", "title": "\u67e5\u770b\u6b64\u5b57\u6bb5", "paragraphs": ["\u793a\u4f8b\u67e5\u8be2\uff1b\u4e0d\u8868\u793a\u5df2\u6267\u884c\uff0c\u4e5f\u4e0d\u63d0\u4f9b\u5b9e\u6d4b\u503c\u3002"]}], "sql_type": "bigint", "center_zh": {"title": "pg_stat_io.op_bytes", "locale": "zh-Hans", "source": {"key": "pg_stat_io-op_bytes", "locale": "zh-Hans", "version": "17", "text_hash": "fcdeeb836708caa3ccf01f8d23f07e6341a532043b4eb51f5ef59fb19c0c5697", "collection": "metric", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": 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"git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:7340767258d21c21b36f373f1fff6bab2be18e0daca13a865129db6105c09efd"}, "body_sha256": "b9b7351d9a2467962f70c8b0b415274798128fca4ce96f4649a64bc90cdfc756", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "sections": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["pg_stat_io \u89c6\u56fe\u4e3a\u540e\u7aef\u7c7b\u578b\u3001\u76ee\u6807 I/O \u5bf9\u8c61\u548c I/O \u4e0a\u4e0b\u6587\u7684\u6bcf\u79cd\u7ec4\u5408\u63d0\u4f9b\u4e00\u884c\uff0c\u663e\u793a\u6574\u4e2a\u96c6\u7fa4\u7684 I/O \u7edf\u8ba1\u4fe1\u606f\uff1b\u65e0\u610f\u4e49\u7684\u7ec4\u5408\u4f1a\u7701\u7565\u3002\u76ee\u524d\u8ddf\u8e2a\u5173\u7cfb\uff08\u5982\u8868\u3001\u7d22\u5f15\uff09\u7684 I/O\uff0c\u4f46\u4e0d\u8ddf\u8e2a\u7ed5\u8fc7\u5171\u4eab\u7f13\u51b2\u533a\u7684\u5173\u7cfb I/O\uff08\u4f8b\u5982\u5c06\u8868\u4ece\u4e00\u4e2a\u8868\u7a7a\u95f4\u79fb\u52a8\u5230\u53e6\u4e00\u4e2a\u8868\u7a7a\u95f4\uff09\u3002"]}, {"title": "\u91c7\u96c6\u4e0e\u91cd\u7f6e\u8bed\u4e49", "paragraphs": ["\u91cd\u7f6e\u8303\u56f4\u548c\u53ef\u89c1\u6027\u8bf7\u53c2\u9605\u4e0b\u65b9\u540c\u7248\u672c\u7684\u7edf\u8ba1\u4fe1\u606f\u6536\u96c6\u4e0e\u89c6\u56fe\u6587\u6863\u3002\u4e0d\u6839\u636e\u5b57\u6bb5\u540d\u79f0\u63a8\u65ad\u5404\u5b57\u6bb5\u7684\u91cd\u7f6e\u89c4\u5219\u3002"]}, {"code": "SELECT op_bytes FROM pg_catalog.pg_stat_io;", "title": "\u67e5\u770b\u6b64\u5b57\u6bb5", "paragraphs": ["\u793a\u4f8b\u67e5\u8be2\uff1b\u4e0d\u8868\u793a\u5df2\u6267\u884c\uff0c\u4e5f\u4e0d\u63d0\u4f9b\u5b9e\u6d4b\u503c\u3002"]}], "description_zh": "\u6bcf\u4e2a I/O \u8bfb\u53d6\u3001\u5199\u5165\u6216\u6269\u5c55\u5355\u4f4d\u7684\u5b57\u8282\u6570\u3002\n\n\u5173\u7cfb\u6570\u636e\u7684\u8bfb\u53d6\u3001\u5199\u5165\u548c\u6269\u5c55\u4ee5 block_size \u4e3a\u5355\u4f4d\u8fdb\u884c\uff0c\u8be5\u503c\u6765\u81ea\u6784\u5efa\u65f6\u53c2\u6570 BLCKSZ\uff0c\u9ed8\u8ba4\u503c\u4e3a 8192\u3002", "description_zh_html": "<p>pg_stat_io.op_bytes \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_io</code></dd><dt>\u5b57\u6bb5</dt><dd><code>op_bytes</code></dd><dt>SQL \u7c7b\u578b</dt><dd><code>bigint</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><p>\u6bcf\u4e2a I/O \u8bfb\u53d6\u3001\u5199\u5165\u6216\u6269\u5c55\u5355\u4f4d\u7684\u5b57\u8282\u6570\u3002\n\n\u5173\u7cfb\u6570\u636e\u7684\u8bfb\u53d6\u3001\u5199\u5165\u548c\u6269\u5c55\u4ee5 block_size \u4e3a\u5355\u4f4d\u8fdb\u884c\uff0c\u8be5\u503c\u6765\u81ea\u6784\u5efa\u65f6\u53c2\u6570 BLCKSZ\uff0c\u9ed8\u8ba4\u503c\u4e3a 8192\u3002</p><p><a href=\"/zh/docs/17/monitoring-stats.html#\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "\u6bcf\u4e2a I/O \u8bfb\u53d6\u3001\u5199\u5165\u6216\u6269\u5c55\u5355\u4f4d\u7684\u5b57\u8282\u6570\u3002\n\n\u5173\u7cfb\u6570\u636e\u7684\u8bfb\u53d6\u3001\u5199\u5165\u548c\u6269\u5c55\u4ee5 block_size \u4e3a\u5355\u4f4d\u8fdb\u884c\uff0c\u8be5\u503c\u6765\u81ea\u6784\u5efa\u65f6\u53c2\u6570 BLCKSZ\uff0c\u9ed8\u8ba4\u503c\u4e3a 8192\u3002", "version": "17", "link_map": {"/zh/docs/17/monitoring-stats.html": "/docs/17/monitoring-stats.html"}, "body_html": "<p>pg_stat_io.op_bytes \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_io</code></dd><dt>\u5b57\u6bb5</dt><dd><code>op_bytes</code></dd><dt>SQL \u7c7b\u578b</dt><dd><code>bigint</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><p>\u6bcf\u4e2a I/O \u8bfb\u53d6\u3001\u5199\u5165\u6216\u6269\u5c55\u5355\u4f4d\u7684\u5b57\u8282\u6570\u3002\n\n\u5173\u7cfb\u6570\u636e\u7684\u8bfb\u53d6\u3001\u5199\u5165\u548c\u6269\u5c55\u4ee5 block_size \u4e3a\u5355\u4f4d\u8fdb\u884c\uff0c\u8be5\u503c\u6765\u81ea\u6784\u5efa\u65f6\u53c2\u6570 BLCKSZ\uff0c\u9ed8\u8ba4\u503c\u4e3a 8192\u3002</p><p><a href=\"/zh/docs/17/monitoring-stats.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "9334ffeff921610136f34d584a0799f62fc24a356433cb040cd8e64be3024d5d", "content_hash": "fcdeeb836708caa3ccf01f8d23f07e6341a532043b4eb51f5ef59fb19c0c5697", "source_database": "center", "source_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "signature": "SELECT op_bytes FROM pg_catalog.pg_stat_io;", "tables_zh": [], "documented": true, "description": ["\u6bcf\u4e2a I/O \u8bfb\u53d6\u3001\u5199\u5165\u6216\u6269\u5c55\u5355\u4f4d\u7684\u5b57\u8282\u6570\u3002\n\n\u5173\u7cfb\u6570\u636e\u7684\u8bfb\u53d6\u3001\u5199\u5165\u548c\u6269\u5c55\u4ee5 block_size \u4e3a\u5355\u4f4d\u8fdb\u884c\uff0c\u8be5\u503c\u6765\u81ea\u6784\u5efa\u65f6\u53c2\u6570 BLCKSZ\uff0c\u9ed8\u8ba4\u503c\u4e3a 8192\u3002"], "manual_html": "", "manual_path": "/docs/17/monitoring-stats.html", "sections_zh": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["pg_stat_io \u89c6\u56fe\u4e3a\u540e\u7aef\u7c7b\u578b\u3001\u76ee\u6807 I/O \u5bf9\u8c61\u548c I/O \u4e0a\u4e0b\u6587\u7684\u6bcf\u79cd\u7ec4\u5408\u63d0\u4f9b\u4e00\u884c\uff0c\u663e\u793a\u6574\u4e2a\u96c6\u7fa4\u7684 I/O \u7edf\u8ba1\u4fe1\u606f\uff1b\u65e0\u610f\u4e49\u7684\u7ec4\u5408\u4f1a\u7701\u7565\u3002\u76ee\u524d\u8ddf\u8e2a\u5173\u7cfb\uff08\u5982\u8868\u3001\u7d22\u5f15\uff09\u7684 I/O\uff0c\u4f46\u4e0d\u8ddf\u8e2a\u7ed5\u8fc7\u5171\u4eab\u7f13\u51b2\u533a\u7684\u5173\u7cfb I/O\uff08\u4f8b\u5982\u5c06\u8868\u4ece\u4e00\u4e2a\u8868\u7a7a\u95f4\u79fb\u52a8\u5230\u53e6\u4e00\u4e2a\u8868\u7a7a\u95f4\uff09\u3002"]}, {"title": "\u91c7\u96c6\u4e0e\u91cd\u7f6e\u8bed\u4e49", "paragraphs": ["\u91cd\u7f6e\u8303\u56f4\u548c\u53ef\u89c1\u6027\u8bf7\u53c2\u9605\u4e0b\u65b9\u540c\u7248\u672c\u7684\u7edf\u8ba1\u4fe1\u606f\u6536\u96c6\u4e0e\u89c6\u56fe\u6587\u6863\u3002\u4e0d\u6839\u636e\u5b57\u6bb5\u540d\u79f0\u63a8\u65ad\u5404\u5b57\u6bb5\u7684\u91cd\u7f6e\u89c4\u5219\u3002"]}, {"code": "SELECT op_bytes FROM pg_catalog.pg_stat_io;", "title": "\u67e5\u770b\u6b64\u5b57\u6bb5", "paragraphs": ["\u793a\u4f8b\u67e5\u8be2\uff1b\u4e0d\u8868\u793a\u5df2\u6267\u884c\uff0c\u4e5f\u4e0d\u63d0\u4f9b\u5b9e\u6d4b\u503c\u3002"]}], "source_only": false, "localization": {"status": "complete", "sources": [{"url": "/docs/17/monitoring-stats.html", "method": "same-major semantic node", "sha256": "5cd346cc373a5a006b07664d9969d4c630c8ea55dea33b8f3211f061ce43e54f", "language": "zh", "matched_nodes": ["#MONITORING-STATS/div[17]/div[4]/div[1]/table[0]/tbody[2]/tr[17]/td[0]/p[1]"]}], "language": "zh", "original_text": {"/summary": "The number of bytes per unit of I/O read, written, or extended.\n\nRelation data reads, writes, and extends are done in block_size units, derived from the build-time parameter BLCKSZ, which is 8192 by default.", "/versions/17/description/0": "The number of bytes per unit of I/O read, written, or extended.\n\nRelation data reads, writes, and extends are done in block_size units, derived from the build-time parameter BLCKSZ, which is 8192 by default.", "/versions/17/facts/0/label": "View", "/versions/17/facts/1/label": "Field", "/versions/17/facts/2/label": "SQL type", "/versions/17/facts/3/label": "Units named in the field definition", "/versions/17/facts/4/label": "Reset observation", "/versions/17/facts/4/value": "Time at which these statistics were last reset.", "/versions/17/related/0/label": "pg_stat_io columns", "/versions/17/related/1/label": "Statistics collection and reset functions", "/versions/17/sections/0/title": "View semantics", "/versions/17/sections/1/title": "Collection and reset context", "/versions/17/sections/2/title": "Inspect this field", "/versions/17/sections/0/paragraphs/0": "The pg_stat_io view will contain one row for each combination of backend type, target I/O object, and I/O context, showing cluster-wide I/O statistics. Combinations which do not make sense are omitted.\n\nCurrently, I/O on relations (e.g. tables, indexes) is tracked. However, relation I/O which bypasses shared buffers (e.g. when moving a table from one tablespace to another) is currently not tracked.", "/versions/17/sections/1/paragraphs/0": "Read the same-version statistics collection and view documentation below for reset scope and visibility. No per-field reset rule is inferred from the field name.", "/versions/17/sections/2/paragraphs/0": "Example query; no execution result or measured value is asserted."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "c514f451b27f425fbdaaf7b1eb51e067528f121f271539e3cb2c5aab0caa995d", "canonical_center_text_hash": "fcdeeb836708caa3ccf01f8d23f07e6341a532043b4eb51f5ef59fb19c0c5697"}, "description_zh": "\u6bcf\u4e2a I/O \u8bfb\u53d6\u3001\u5199\u5165\u6216\u6269\u5c55\u5355\u4f4d\u7684\u5b57\u8282\u6570\u3002\n\n\u5173\u7cfb\u6570\u636e\u7684\u8bfb\u53d6\u3001\u5199\u5165\u548c\u6269\u5c55\u4ee5 block_size \u4e3a\u5355\u4f4d\u8fdb\u884c\uff0c\u8be5\u503c\u6765\u81ea\u6784\u5efa\u65f6\u53c2\u6570 BLCKSZ\uff0c\u9ed8\u8ba4\u503c\u4e3a 8192\u3002", "comparison_data": {"view": "pg_stat_io", "field": "op_bytes", "sql_type": "bigint", "units_mentioned": ["bytes"]}, "comparison_hash": "46e9d3530a117c181e304599e8a6d6e96c07171b7e30e0c31adae3aec8c79b75", "manual_language": "zh", "units_mentioned": ["bytes"], "description_zh_html": "<p>pg_stat_io.op_bytes \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_io</code></dd><dt>\u5b57\u6bb5</dt><dd><code>op_bytes</code></dd><dt>SQL \u7c7b\u578b</dt><dd><code>bigint</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><p>\u6bcf\u4e2a I/O \u8bfb\u53d6\u3001\u5199\u5165\u6216\u6269\u5c55\u5355\u4f4d\u7684\u5b57\u8282\u6570\u3002\n\n\u5173\u7cfb\u6570\u636e\u7684\u8bfb\u53d6\u3001\u5199\u5165\u548c\u6269\u5c55\u4ee5 block_size \u4e3a\u5355\u4f4d\u8fdb\u884c\uff0c\u8be5\u503c\u6765\u81ea\u6784\u5efa\u65f6\u53c2\u6570 BLCKSZ\uff0c\u9ed8\u8ba4\u503c\u4e3a 8192\u3002</p><p><a href=\"/zh/docs/17/monitoring-stats.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}}}, "snapshot": null, "comparison": {"left": "17", "right": "18", "status": "removed", "diff": "--- PostgreSQL 17\n+++ PostgreSQL 18\n@@ -1,8 +1 @@\n-{\n-  \"field\": \"op_bytes\",\n-  \"sql_type\": \"bigint\",\n-  \"units_mentioned\": [\n-    \"bytes\"\n-  ],\n-  \"view\": \"pg_stat_io\"\n-}\n+\u8be5\u7248\u672a\u6536\u5f55"}}