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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 extends 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": "\u5173\u7cfb\u6269\u5c55\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.extends \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_io</code></dd><dt>\u5b57\u6bb5</dt><dd><code>extends</code></dd><dt>SQL 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specified in 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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"git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:7340767258d21c21b36f373f1fff6bab2be18e0daca13a865129db6105c09efd"}, "body_sha256": "3274889774a0fc2b521212c7176cba301355fa218b6b31d3a47f5d1d305c8a69", "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 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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>\u5173\u7cfb\u6269\u5c55\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": "db911833132406acef3483efb71f5e5c2756695998027b00a068e5e336e13250", "content_hash": "c8fe09fdbd756ec59f30eb01e777d5680241bdb9a2849746e42e9ac00dbfce44", "source_database": "center", "source_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "signature": "SELECT extends FROM pg_catalog.pg_stat_io;", "tables_zh": [], "documented": true, "description": ["\u5173\u7cfb\u6269\u5c55\u64cd\u4f5c\u7684\u6b21\u6570\uff0c\u6bcf\u6b21\u64cd\u4f5c\u7684\u5927\u5c0f\u7531 op_bytes \u6307\u5b9a\u3002"], "manual_html": "", "manual_path": 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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. 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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 extends 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": "\u5173\u7cfb\u6269\u5c55\u64cd\u4f5c\u7684\u6570\u91cf\u3002", "description_zh_html": "<p>pg_stat_io.extends \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_io</code></dd><dt>\u5b57\u6bb5</dt><dd><code>extends</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>\u5173\u7cfb\u6269\u5c55\u64cd\u4f5c\u7684\u6570\u91cf\u3002</p><p><a 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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 extends 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/19/monitoring-stats.html", "method": "same-major semantic node", "sha256": "024434288428f15560d48c78af2e836ca669a4217589cfaeb2f16b72123b501a", "language": "zh", 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{"/versions/18/description/0": "Number of relation extend operations.", "/versions/18/facts/0/label": "View", "/versions/18/facts/1/label": "Field", "/versions/18/facts/2/label": "SQL type", "/versions/18/facts/3/label": "Units named in the field definition", "/versions/18/facts/3/value": "Not specified", "/versions/18/facts/4/label": "Reset observation", "/versions/18/facts/4/value": "Time at which these statistics were last reset.", "/versions/18/related/0/label": "pg_stat_io columns", "/versions/18/related/1/label": "Statistics collection and reset functions", "/versions/18/sections/0/title": "View semantics", "/versions/18/sections/1/title": "Collection and reset context", "/versions/18/sections/2/title": "Inspect this field", "/versions/18/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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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": "31b567d466bd3c9c218fc23d3ba97c59e8e0dd54443028562d22902b9d057a48", "canonical_center_text_hash": "8572f3665eed652026c2c14fed6e60d0fb592a5e5495bb0702961a690c5ce759"}, "description_zh": "\u5173\u7cfb\u6269\u5c55\u64cd\u4f5c\u7684\u6570\u91cf\u3002", "comparison_data": {"view": "pg_stat_io", "field": "extends", "sql_type": "bigint", "units_mentioned": []}, "comparison_hash": "a8c61e6befe5bf1e94bddeb4732ff9128bf7c177b8eac9cbad3c2a66ab8bf1ae", "manual_language": "zh", "units_mentioned": [], "description_zh_html": "<p>pg_stat_io.extends \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_io</code></dd><dt>\u5b57\u6bb5</dt><dd><code>extends</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>\u5173\u7cfb\u6269\u5c55\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.extends \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_io</code></dd><dt>\u5b57\u6bb5</dt><dd><code>extends</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>\u5173\u7cfb\u6269\u5c55\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>"}, "comparison": {"left": "17", "right": "18", "status": "unchanged", "diff": ""}}