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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 reads 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": "\u8bfb\u53d6\u64cd\u4f5c\u7684\u6b21\u6570\uff0c\u6bcf\u6b21\u64cd\u4f5c\u7684\u5927\u5c0f\u7531 op_bytes \u6307\u5b9a\u3002", "description_zh_html": "<p>pg_stat_io.reads \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_io</code></dd><dt>\u5b57\u6bb5</dt><dd><code>reads</code></dd><dt>SQL 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op_bytes.", "/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/3/value": "Not specified", "/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. 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\u7c7b\u578b</dt><dd><code>bigint</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><p>\u8bfb\u53d6\u64cd\u4f5c\u7684\u6b21\u6570\uff0c\u6bcf\u6b21\u64cd\u4f5c\u7684\u5927\u5c0f\u7531 op_bytes \u6307\u5b9a\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": "reads"}, {"label": "SQL \u7c7b\u578b", "value": "bigint"}, {"label": "\u5b57\u6bb5\u5b9a\u4e49\u8bb0\u8f7d\u7684\u5355\u4f4d", "value": "\u672a\u6307\u5b9a"}, {"label": "\u91cd\u7f6e\u6761\u4ef6", "value": "\u8fd9\u4e9b\u7edf\u8ba1\u4fe1\u606f\u4e0a\u6b21\u88ab\u91cd\u7f6e\u7684\u65f6\u95f4\u3002"}], "field": "reads", "tables": [], "related": [{"url": "/wiki/catalog/pg_stat_io/?v=17", "label": "pg_stat_io \u5b57\u6bb5"}, {"url": "/docs/17/monitoring-stats.html", "label": 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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 reads 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": "\u8bfb\u53d6\u64cd\u4f5c\u7684\u6b21\u6570\uff0c\u6bcf\u6b21\u64cd\u4f5c\u7684\u5927\u5c0f\u7531 op_bytes \u6307\u5b9a\u3002", "description_zh_html": "<p>pg_stat_io.reads \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_io</code></dd><dt>\u5b57\u6bb5</dt><dd><code>reads</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>\u8bfb\u53d6\u64cd\u4f5c\u7684\u6b21\u6570\uff0c\u6bcf\u6b21\u64cd\u4f5c\u7684\u5927\u5c0f\u7531 op_bytes \u6307\u5b9a\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": "\u8bfb\u53d6\u64cd\u4f5c\u7684\u6b21\u6570\uff0c\u6bcf\u6b21\u64cd\u4f5c\u7684\u5927\u5c0f\u7531 op_bytes \u6307\u5b9a\u3002", "version": "17", "link_map": {"/zh/docs/17/monitoring-stats.html": "/docs/17/monitoring-stats.html"}, "body_html": "<p>pg_stat_io.reads \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_io</code></dd><dt>\u5b57\u6bb5</dt><dd><code>reads</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>\u8bfb\u53d6\u64cd\u4f5c\u7684\u6b21\u6570\uff0c\u6bcf\u6b21\u64cd\u4f5c\u7684\u5927\u5c0f\u7531 op_bytes \u6307\u5b9a\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": "14f011a33b985d28989735fe5395bef5711bb8743702a0326ead3b732408d707", "content_hash": "5a1e94485faaf872a68e53c0588f61fce4a9b0de801bbe35854da73d1044afbd", "source_database": "center", "source_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "signature": "SELECT reads FROM pg_catalog.pg_stat_io;", "tables_zh": [], "documented": true, "description": ["\u8bfb\u53d6\u64cd\u4f5c\u7684\u6b21\u6570\uff0c\u6bcf\u6b21\u64cd\u4f5c\u7684\u5927\u5c0f\u7531 op_bytes \u6307\u5b9a\u3002"], "manual_html": "", "manual_path": "/docs/17/monitoring-stats.html", 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["\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 reads 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": {"/versions/17/description/0": "Number of read operations, each of the size specified in op_bytes.", "/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/3/value": "Not specified", "/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": "e009efdea759b55a87525377f696719032336a88ebd41fc79e0fd19da8342c35", "canonical_center_text_hash": "5a1e94485faaf872a68e53c0588f61fce4a9b0de801bbe35854da73d1044afbd"}, "description_zh": "\u8bfb\u53d6\u64cd\u4f5c\u7684\u6b21\u6570\uff0c\u6bcf\u6b21\u64cd\u4f5c\u7684\u5927\u5c0f\u7531 op_bytes \u6307\u5b9a\u3002", "comparison_data": {"view": "pg_stat_io", "field": "reads", "sql_type": "bigint", "units_mentioned": []}, "comparison_hash": "32bee1077dfc3c1c2d1e0d637af1066d829979ecd8639e2868dd4e334312479a", "manual_language": "zh", "units_mentioned": [], "description_zh_html": "<p>pg_stat_io.reads \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_io</code></dd><dt>\u5b57\u6bb5</dt><dd><code>reads</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>\u8bfb\u53d6\u64cd\u4f5c\u7684\u6b21\u6570\uff0c\u6bcf\u6b21\u64cd\u4f5c\u7684\u5927\u5c0f\u7531 op_bytes \u6307\u5b9a\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>"}, "18": {"view": "pg_stat_io", "facts": [{"label": "\u89c6\u56fe", "value": "pg_stat_io"}, {"label": "\u5b57\u6bb5", "value": "reads"}, {"label": "SQL \u7c7b\u578b", "value": "bigint"}, {"label": "\u5b57\u6bb5\u5b9a\u4e49\u8bb0\u8f7d\u7684\u5355\u4f4d", "value": "\u672a\u6307\u5b9a"}, {"label": "\u91cd\u7f6e\u6761\u4ef6", "value": "\u8fd9\u4e9b\u7edf\u8ba1\u4fe1\u606f\u4e0a\u6b21\u88ab\u91cd\u7f6e\u7684\u65f6\u95f4\u3002"}], "field": "reads", "tables": [], "related": [{"url": "/wiki/catalog/pg_stat_io/?v=18", "label": "pg_stat_io \u5b57\u6bb5"}, {"url": "/docs/18/monitoring-stats.html", "label": 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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 \u548c WAL \u6d3b\u52a8\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 reads 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": "\u8bfb\u53d6\u64cd\u4f5c\u7684\u6570\u91cf\u3002", "description_zh_html": "<p>pg_stat_io.reads \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_io</code></dd><dt>\u5b57\u6bb5</dt><dd><code>reads</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>\u8bfb\u53d6\u64cd\u4f5c\u7684\u6570\u91cf\u3002</p><p><a href=\"/zh/docs/18/monitoring-stats.html#\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "\u8bfb\u53d6\u64cd\u4f5c\u7684\u6570\u91cf\u3002", "version": "18", "link_map": {"/zh/docs/18/monitoring-stats.html": "/docs/18/monitoring-stats.html"}, "body_html": "<p>pg_stat_io.reads \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_io</code></dd><dt>\u5b57\u6bb5</dt><dd><code>reads</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>\u8bfb\u53d6\u64cd\u4f5c\u7684\u6570\u91cf\u3002</p><p><a href=\"/zh/docs/18/monitoring-stats.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "e77ab5eb2b00debc83ef77ef2521634ce4ad877b10a02aaeae928d8a297be49c", "content_hash": "b99bc5522e5ecb09c2cb0958fc0e2a921364378a5bd3a9319a6bfeeef52b6bdb", "source_database": "center", "source_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "signature": "SELECT reads FROM pg_catalog.pg_stat_io;", "tables_zh": [], "documented": true, "description": ["\u8bfb\u53d6\u64cd\u4f5c\u7684\u6570\u91cf\u3002"], "manual_html": "", "manual_path": "/docs/18/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 \u548c WAL \u6d3b\u52a8\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 reads 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/18/monitoring-stats.html", "method": "same-major semantic node", "sha256": "ff0b10c5fb4b75c247e38b7ad0e8a50fa0b6ebaa25e68c8c67a1ca972bda40b1", "language": "zh", 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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) and WAL activity are 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/18/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/18/sections/2/paragraphs/0": "Example query; no execution result or measured value is asserted."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "ddd1ad3bfd5122e27a2ccabe5de2c3453b9bad9e5936e14825c5e9d83ca08667", "canonical_center_text_hash": "b99bc5522e5ecb09c2cb0958fc0e2a921364378a5bd3a9319a6bfeeef52b6bdb"}, "description_zh": "\u8bfb\u53d6\u64cd\u4f5c\u7684\u6570\u91cf\u3002", "comparison_data": {"view": "pg_stat_io", "field": "reads", "sql_type": "bigint", "units_mentioned": []}, "comparison_hash": "32bee1077dfc3c1c2d1e0d637af1066d829979ecd8639e2868dd4e334312479a", "manual_language": "zh", "units_mentioned": [], "description_zh_html": "<p>pg_stat_io.reads \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_io</code></dd><dt>\u5b57\u6bb5</dt><dd><code>reads</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>\u8bfb\u53d6\u64cd\u4f5c\u7684\u6570\u91cf\u3002</p><p><a href=\"/zh/docs/18/monitoring-stats.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "center_zh_rendered": "<p>pg_stat_io.reads \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_io</code></dd><dt>\u5b57\u6bb5</dt><dd><code>reads</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>\u8bfb\u53d6\u64cd\u4f5c\u7684\u6570\u91cf\u3002</p><p><a href=\"/docs/18/monitoring-stats.html\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "19": {"view": "pg_stat_io", "facts": [{"label": "\u89c6\u56fe", "value": "pg_stat_io"}, {"label": "\u5b57\u6bb5", "value": "reads"}, {"label": "SQL \u7c7b\u578b", "value": "bigint"}, 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I/O \u548c WAL \u6d3b\u52a8\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 reads 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.reads", "locale": "zh-Hans", "source": {"key": "pg_stat_io-reads", "locale": "zh-Hans", 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\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 \u548c WAL \u6d3b\u52a8\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 reads 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": "\u8bfb\u53d6\u64cd\u4f5c\u7684\u6570\u91cf\u3002", "description_zh_html": "<p>pg_stat_io.reads \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_io</code></dd><dt>\u5b57\u6bb5</dt><dd><code>reads</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>\u8bfb\u53d6\u64cd\u4f5c\u7684\u6570\u91cf\u3002</p><p><a href=\"/zh/docs/19/monitoring-stats.html#\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "\u8bfb\u53d6\u64cd\u4f5c\u7684\u6570\u91cf\u3002", "version": "19", "link_map": {"/zh/docs/19/monitoring-stats.html": "/docs/19/monitoring-stats.html"}, "body_html": "<p>pg_stat_io.reads \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_io</code></dd><dt>\u5b57\u6bb5</dt><dd><code>reads</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>\u8bfb\u53d6\u64cd\u4f5c\u7684\u6570\u91cf\u3002</p><p><a href=\"/zh/docs/19/monitoring-stats.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "4ce44ebff42e2671107cb3cbb6550cbe8ca90318da52e46da4d3e4a3d17769cc", "content_hash": "7e629665e14c57a56af9ed77b7fafffdd2b03d6d7f66f6ee6a77653eee1c0488", "source_database": "center", "source_revision": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "signature": "SELECT reads FROM pg_catalog.pg_stat_io;", "tables_zh": [], "documented": true, "description": ["\u8bfb\u53d6\u64cd\u4f5c\u7684\u6570\u91cf\u3002"], "manual_html": "", "manual_path": "/docs/19/monitoring-stats.html", "sections_zh": 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{"/versions/19/description/0": "Number of read operations.", "/versions/19/facts/0/label": "View", "/versions/19/facts/1/label": "Field", "/versions/19/facts/2/label": "SQL type", "/versions/19/facts/3/label": "Units named in the field definition", "/versions/19/facts/3/value": "Not specified", "/versions/19/facts/4/label": "Reset observation", "/versions/19/facts/4/value": "Time at which these statistics were last reset.", "/versions/19/related/0/label": "pg_stat_io columns", "/versions/19/related/1/label": "Statistics collection and reset functions", "/versions/19/sections/0/title": "View semantics", "/versions/19/sections/1/title": "Collection and reset context", "/versions/19/sections/2/title": "Inspect this field", "/versions/19/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. 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"git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:08e987a66af27b98444a8057c256314eafa13611a3fb9e888214fc436824244b"}, "body_sha256": "e64a2f7641806912a67fc9f979245d78c3038cd29283c682f5c78db81a9a9e03", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "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 \u548c WAL \u6d3b\u52a8\uff0c\u4f46\u4e0d\u8ddf\u8e2a\u7ed5\u8fc7\u5171\u4eab\u7f13\u51b2\u533a\u7684\u5173\u7cfb 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