{"kind": "metric", "major": "18", "item": {"slug": "pg_stat_slru-truncates", "name": "pg_stat_slru.truncates", "name_zh": "", "category": "pg_stat_slru", "summary": "\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570", "aliases": ["truncates", "pg_stat_slru"], "content_hash": "d244e99843e113ecafea09d90807aa638e03674b4856174990acc23908497ec0", "versions": {"13": {"view": "pg_stat_slru", "facts": [{"label": "\u89c6\u56fe", "value": "pg_stat_slru"}, {"label": "\u5b57\u6bb5", "value": "truncates"}, {"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\u4e0a\u6b21\u91cd\u7f6e\u7684\u65f6\u95f4"}], "field": "truncates", "tables": [], "related": [{"url": "/wiki/catalog/pg_stat_slru/?v=13", "label": "pg_stat_slru \u5b57\u6bb5"}, {"url": "/docs/13/monitoring-stats.html", "label": 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pg_stat_slru \u89c6\u56fe\u5c06\u4e3a\u6bcf\u4e2a\u88ab\u8ddf\u8e2a\u7684SLRU\u7f13\u5b58\u5305\u542b\u4e00\u884c\uff0c\u663e\u793a\u5173\u4e8e\u8bbf\u95ee\u7f13\u5b58\u9875\u9762\u7684\u7edf\u8ba1\u4fe1\u606f\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 truncates FROM pg_catalog.pg_stat_slru;", "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_slru.truncates", "locale": "zh-Hans", "source": {"key": "pg_stat_slru-truncates", "locale": "zh-Hans", "version": "13", 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"exact-catalog-field", "source_hash": "57373e7034db8002ff131250ff4fe83a8251455fad5580597598b0863a245ece", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:a13a825c39f0268ef1cfe9137e283e38d0da73b2d7894f0733c7b26372a4f6a4"}, "body_sha256": "384f7953f362f67222c0e7a99c0ae929f0b63cc42429f040291834b9129b52b7", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "sections": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["PostgreSQL \u901a\u8fc7 SLRU \uff08simple least-recently-used\uff0c\u7b80\u5355\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7f13\u5b58\u8bbf\u95ee\u67d0\u4e9b\u78c1\u76d8\u4e0a\u7684\u4fe1\u606f\u3002 pg_stat_slru \u89c6\u56fe\u5c06\u4e3a\u6bcf\u4e2a\u88ab\u8ddf\u8e2a\u7684SLRU\u7f13\u5b58\u5305\u542b\u4e00\u884c\uff0c\u663e\u793a\u5173\u4e8e\u8bbf\u95ee\u7f13\u5b58\u9875\u9762\u7684\u7edf\u8ba1\u4fe1\u606f\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 truncates FROM pg_catalog.pg_stat_slru;", "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": "\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570", "description_zh_html": "<p>pg_stat_slru.truncates 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href=\"/zh/docs/13/monitoring-stats.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "221911aa468b386380db4609c02b2df37845d3b4d2a6e096537a04bb7c572e31", "content_hash": "ee76b0619c334b4eae5c338cb840ed13a6f36bf97890233fe5b4017396574ff8", "source_database": "center", "source_revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "signature": "SELECT truncates FROM pg_catalog.pg_stat_slru;", "tables_zh": [], "documented": true, "description": ["\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570"], "manual_html": "", "manual_path": "/docs/13/monitoring-stats.html", "sections_zh": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["PostgreSQL \u901a\u8fc7 SLRU \uff08simple least-recently-used\uff0c\u7b80\u5355\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7f13\u5b58\u8bbf\u95ee\u67d0\u4e9b\u78c1\u76d8\u4e0a\u7684\u4fe1\u606f\u3002 pg_stat_slru \u89c6\u56fe\u5c06\u4e3a\u6bcf\u4e2a\u88ab\u8ddf\u8e2a\u7684SLRU\u7f13\u5b58\u5305\u542b\u4e00\u884c\uff0c\u663e\u793a\u5173\u4e8e\u8bbf\u95ee\u7f13\u5b58\u9875\u9762\u7684\u7edf\u8ba1\u4fe1\u606f\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 truncates FROM pg_catalog.pg_stat_slru;", "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/13/monitoring-stats.html", "method": "same-major semantic node", "sha256": 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"/versions/13/sections/0/paragraphs/0": "PostgreSQL accesses certain on-disk information via SLRU (simple least-recently-used) caches. The pg_stat_slru view will contain one row for each tracked SLRU cache, showing statistics about access to cached pages.", "/versions/13/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/13/sections/2/paragraphs/0": "Example query; no execution result or measured value is asserted."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "ae8141217185d7181eb4fcf56d7a1313c49f4909bbe8829a748ed44494197f4c", "canonical_center_text_hash": "ee76b0619c334b4eae5c338cb840ed13a6f36bf97890233fe5b4017396574ff8"}, "description_zh": "\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570", "comparison_data": {"view": "pg_stat_slru", "field": "truncates", "sql_type": "bigint", "units_mentioned": []}, "comparison_hash": "ef296edfdd39bf2ee0f916d0bfa659f132c10b996d58590d272acc3d8b38fa0a", "manual_language": "zh", "units_mentioned": [], "description_zh_html": "<p>pg_stat_slru.truncates \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_slru</code></dd><dt>\u5b57\u6bb5</dt><dd><code>truncates</code></dd><dt>SQL 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least-recently-used\uff0c\u7b80\u5355\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7f13\u5b58\u8bbf\u95ee\u67d0\u4e9b\u78c1\u76d8\u4e0a\u7684\u4fe1\u606f\u3002 pg_stat_slru \u89c6\u56fe\u5c06\u4e3a\u6bcf\u4e2a\u88ab\u8ddf\u8e2a\u7684SLRU\u7f13\u5b58\u5305\u542b\u4e00\u884c\uff0c\u663e\u793a\u5173\u4e8e\u8bbf\u95ee\u7f13\u5b58\u9875\u9762\u7684\u7edf\u8ba1\u4fe1\u606f\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 truncates FROM pg_catalog.pg_stat_slru;", "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": 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least-recently-used\uff0c\u7b80\u5355\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7f13\u5b58\u8bbf\u95ee\u67d0\u4e9b\u78c1\u76d8\u4e0a\u7684\u4fe1\u606f\u3002 pg_stat_slru \u89c6\u56fe\u5c06\u4e3a\u6bcf\u4e2a\u88ab\u8ddf\u8e2a\u7684SLRU\u7f13\u5b58\u5305\u542b\u4e00\u884c\uff0c\u663e\u793a\u5173\u4e8e\u8bbf\u95ee\u7f13\u5b58\u9875\u9762\u7684\u7edf\u8ba1\u4fe1\u606f\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 truncates FROM pg_catalog.pg_stat_slru;", "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": 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The pg_stat_slru view will contain one row for each tracked SLRU cache, showing statistics about access to cached pages.", "/versions/14/sections/1/paragraphs/0": "Read the same-version statistics collection and view documentation below for reset scope and visibility. 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least-recently-used\uff0c\u7b80\u5355\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7f13\u5b58\u8bbf\u95ee\u67d0\u4e9b\u78c1\u76d8\u4e0a\u7684\u4fe1\u606f\u3002 pg_stat_slru \u89c6\u56fe\u5c06\u4e3a\u6bcf\u4e2a\u88ab\u8ddf\u8e2a\u7684SLRU\u7f13\u5b58\u5305\u542b\u4e00\u884c\uff0c\u663e\u793a\u5173\u4e8e\u8bbf\u95ee\u7f13\u5b58\u9875\u9762\u7684\u7edf\u8ba1\u4fe1\u606f\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 truncates FROM pg_catalog.pg_stat_slru;", "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_slru.truncates", "locale": "zh-Hans", "source": {"key": "pg_stat_slru-truncates", "locale": "zh-Hans", "version": "15", "text_hash": "c358ee2d35bac6af3b55424dc2da236a54483035c223fc056602c8f783c7ceb1", "collection": "metric", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89"}, "payload": {"facts": [{"label": "\u89c6\u56fe", "value": "pg_stat_slru"}, {"label": "\u5b57\u6bb5", "value": "truncates"}, {"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\u4e0a\u6b21\u91cd\u7f6e\u7684\u65f6\u95f4"}], "tables": [], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/15/monitoring-stats.html#", "anchor": "", "column": "truncates", "locale": "zh-Hans", "version": "15", "build_id": 101, "page_key": "monitoring-stats.html", "extraction": "exact-catalog-field", "source_hash": "a1f491ce4744d3b72b0eced7fad7c91762a4a8ba5ce0d61094b0616668450592", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:6bce1a2df9170cb1146a1411c5547190856638221a6539e618ee1016c9f493ad"}, "body_sha256": "499f3a33cccbcb771a53f9f277e9d8ca02077e91f61e013f05e925aba0509299", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89"}, "sections": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["PostgreSQL \u901a\u8fc7 SLRU \uff08simple least-recently-used\uff0c\u7b80\u5355\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7f13\u5b58\u8bbf\u95ee\u67d0\u4e9b\u78c1\u76d8\u4e0a\u7684\u4fe1\u606f\u3002 pg_stat_slru \u89c6\u56fe\u5c06\u4e3a\u6bcf\u4e2a\u88ab\u8ddf\u8e2a\u7684SLRU\u7f13\u5b58\u5305\u542b\u4e00\u884c\uff0c\u663e\u793a\u5173\u4e8e\u8bbf\u95ee\u7f13\u5b58\u9875\u9762\u7684\u7edf\u8ba1\u4fe1\u606f\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 truncates FROM pg_catalog.pg_stat_slru;", "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": 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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>\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570</p><p><a href=\"/zh/docs/15/monitoring-stats.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "67c18bffcf640f41d30d0aa94746c54ae0edc4c8cbd74da7ee20bcd89d469cdb", "content_hash": "c358ee2d35bac6af3b55424dc2da236a54483035c223fc056602c8f783c7ceb1", "source_database": "center", "source_revision": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89"}, "signature": "SELECT truncates FROM pg_catalog.pg_stat_slru;", "tables_zh": [], "documented": true, "description": ["\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570"], "manual_html": "", "manual_path": "/docs/15/monitoring-stats.html", "sections_zh": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["PostgreSQL \u901a\u8fc7 SLRU \uff08simple 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"/versions/15/sections/0/title": "View semantics", "/versions/15/sections/1/title": "Collection and reset context", "/versions/15/sections/2/title": "Inspect this field", "/versions/15/sections/0/paragraphs/0": "PostgreSQL accesses certain on-disk information via SLRU (simple least-recently-used) caches. The pg_stat_slru view will contain one row for each tracked SLRU cache, showing statistics about access to cached pages.", "/versions/15/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/15/sections/2/paragraphs/0": "Example query; no execution result or measured value is asserted."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "0a6c7f68035e84e9b0cfaa3a6830214dbcfa3018617c042482ccd4827f337074", "canonical_center_text_hash": "c358ee2d35bac6af3b55424dc2da236a54483035c223fc056602c8f783c7ceb1"}, "description_zh": "\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570", "comparison_data": {"view": "pg_stat_slru", "field": "truncates", "sql_type": "bigint", "units_mentioned": []}, "comparison_hash": "ef296edfdd39bf2ee0f916d0bfa659f132c10b996d58590d272acc3d8b38fa0a", "manual_language": "zh", "units_mentioned": [], "description_zh_html": "<p>pg_stat_slru.truncates \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_slru</code></dd><dt>\u5b57\u6bb5</dt><dd><code>truncates</code></dd><dt>SQL 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"git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:80579a071736780f9c4022bb5148e1fb1256f1a33591306af67816e9e9bf3a9b"}, "body_sha256": "dbed5d9c9686ef4b3d2cf958a4cddb0a1cd606cbc96139fe360c0de14ec93948", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "facts_zh": [{"label": "\u89c6\u56fe", "value": "pg_stat_slru"}, {"label": "\u5b57\u6bb5", "value": "truncates"}, {"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\u4e0a\u6b21\u91cd\u7f6e\u7684\u65f6\u95f4"}], "sections": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["PostgreSQL \u901a\u8fc7 SLRU \uff08simple least-recently-used\uff0c\u7b80\u5355\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7f13\u5b58\u8bbf\u95ee\u67d0\u4e9b\u78c1\u76d8\u4e0a\u7684\u4fe1\u606f\u3002 pg_stat_slru \u89c6\u56fe\u5c06\u4e3a\u6bcf\u4e2a\u88ab\u8ddf\u8e2a\u7684SLRU\u7f13\u5b58\u5305\u542b\u4e00\u884c\uff0c\u663e\u793a\u5173\u4e8e\u8bbf\u95ee\u7f13\u5b58\u9875\u9762\u7684\u7edf\u8ba1\u4fe1\u606f\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 truncates FROM pg_catalog.pg_stat_slru;", "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_slru.truncates", "locale": "zh-Hans", "source": {"key": "pg_stat_slru-truncates", "locale": "zh-Hans", "version": "16", "text_hash": "85e9d7ada682ee16f133f262d3d9818c1916eef8903ea89972b44276b7e6cf2f", "collection": "metric", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "payload": {"facts": [{"label": "\u89c6\u56fe", "value": "pg_stat_slru"}, {"label": "\u5b57\u6bb5", "value": "truncates"}, {"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\u4e0a\u6b21\u91cd\u7f6e\u7684\u65f6\u95f4"}], "tables": [], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/16/monitoring-stats.html#", "anchor": "", "column": "truncates", "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": "dbed5d9c9686ef4b3d2cf958a4cddb0a1cd606cbc96139fe360c0de14ec93948", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "sections": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["PostgreSQL \u901a\u8fc7 SLRU \uff08simple least-recently-used\uff0c\u7b80\u5355\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7f13\u5b58\u8bbf\u95ee\u67d0\u4e9b\u78c1\u76d8\u4e0a\u7684\u4fe1\u606f\u3002 pg_stat_slru \u89c6\u56fe\u5c06\u4e3a\u6bcf\u4e2a\u88ab\u8ddf\u8e2a\u7684SLRU\u7f13\u5b58\u5305\u542b\u4e00\u884c\uff0c\u663e\u793a\u5173\u4e8e\u8bbf\u95ee\u7f13\u5b58\u9875\u9762\u7684\u7edf\u8ba1\u4fe1\u606f\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 truncates FROM pg_catalog.pg_stat_slru;", "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": "\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570", "description_zh_html": "<p>pg_stat_slru.truncates \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_slru</code></dd><dt>\u5b57\u6bb5</dt><dd><code>truncates</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>\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570</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": "\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570", "version": "16", "link_map": {"/zh/docs/16/monitoring-stats.html": "/docs/16/monitoring-stats.html"}, "body_html": "<p>pg_stat_slru.truncates \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_slru</code></dd><dt>\u5b57\u6bb5</dt><dd><code>truncates</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>\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570</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": "f98a03333ab074c82be09fab6c80510c0649f95b181579153f91c82d366f90b9", "content_hash": "85e9d7ada682ee16f133f262d3d9818c1916eef8903ea89972b44276b7e6cf2f", "source_database": "center", "source_revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "signature": "SELECT truncates FROM pg_catalog.pg_stat_slru;", "tables_zh": [], "documented": true, "description": ["\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570"], "manual_html": "", "manual_path": "/docs/16/monitoring-stats.html", "sections_zh": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["PostgreSQL \u901a\u8fc7 SLRU \uff08simple least-recently-used\uff0c\u7b80\u5355\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7f13\u5b58\u8bbf\u95ee\u67d0\u4e9b\u78c1\u76d8\u4e0a\u7684\u4fe1\u606f\u3002 pg_stat_slru \u89c6\u56fe\u5c06\u4e3a\u6bcf\u4e2a\u88ab\u8ddf\u8e2a\u7684SLRU\u7f13\u5b58\u5305\u542b\u4e00\u884c\uff0c\u663e\u793a\u5173\u4e8e\u8bbf\u95ee\u7f13\u5b58\u9875\u9762\u7684\u7edf\u8ba1\u4fe1\u606f\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 truncates FROM pg_catalog.pg_stat_slru;", "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[28]/div[4]/div[1]/table[0]/tbody[2]/tr[7]/td[0]/p[1]", "#MONITORING-STATS/div[28]/p[3]"]}], "language": "zh", "original_text": {"/versions/16/description/0": "Number of truncates for this SLRU", "/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_slru 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": "PostgreSQL accesses certain on-disk information via SLRU (simple least-recently-used) caches. The pg_stat_slru view will contain one row for each tracked SLRU cache, showing statistics about access to cached pages.", "/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": "358952c801e76c80bee4ddf1fc362e1db35e8edc8080fdb3c8654ac22d43bfa5", "canonical_center_text_hash": "85e9d7ada682ee16f133f262d3d9818c1916eef8903ea89972b44276b7e6cf2f"}, "description_zh": "\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570", "comparison_data": {"view": "pg_stat_slru", "field": "truncates", "sql_type": "bigint", "units_mentioned": []}, "comparison_hash": "ef296edfdd39bf2ee0f916d0bfa659f132c10b996d58590d272acc3d8b38fa0a", "manual_language": "zh", "units_mentioned": [], "description_zh_html": "<p>pg_stat_slru.truncates \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_slru</code></dd><dt>\u5b57\u6bb5</dt><dd><code>truncates</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>\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570</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_slru", "facts": [{"label": "\u89c6\u56fe", "value": "pg_stat_slru"}, {"label": "\u5b57\u6bb5", "value": "truncates"}, {"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\u4e0a\u6b21\u91cd\u7f6e\u7684\u65f6\u95f4"}], "field": "truncates", "tables": [], "related": [{"url": "/wiki/catalog/pg_stat_slru/?v=17", "label": "pg_stat_slru \u5b57\u6bb5"}, {"url": "/docs/17/monitoring-stats.html", "label": "\u7edf\u8ba1\u6536\u96c6\u4e0e\u91cd\u7f6e\u51fd\u6570"}], "release": {"ref": 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"git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:7340767258d21c21b36f373f1fff6bab2be18e0daca13a865129db6105c09efd"}, "body_sha256": "7476042eecedc1ad30ffb92959cd95aa954726395d232af46d7d47a7ed6aca8a", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "facts_zh": [{"label": "\u89c6\u56fe", "value": "pg_stat_slru"}, {"label": "\u5b57\u6bb5", "value": "truncates"}, {"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\u4e0a\u6b21\u91cd\u7f6e\u7684\u65f6\u95f4"}], "sections": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["PostgreSQL \u901a\u8fc7 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"\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_slru.truncates", "locale": "zh-Hans", "source": {"key": "pg_stat_slru-truncates", "locale": "zh-Hans", "version": "17", "text_hash": "6aaf2871c3e55d0ee7b051eb8a961c9e939f47be4ddbca6783073a40312c64fb", "collection": "metric", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "payload": {"facts": [{"label": "\u89c6\u56fe", "value": "pg_stat_slru"}, {"label": "\u5b57\u6bb5", "value": "truncates"}, {"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\u4e0a\u6b21\u91cd\u7f6e\u7684\u65f6\u95f4"}], "tables": [], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/17/monitoring-stats.html#", "anchor": "", "column": "truncates", "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": "7476042eecedc1ad30ffb92959cd95aa954726395d232af46d7d47a7ed6aca8a", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "sections": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["PostgreSQL \u901a\u8fc7 SLRU\uff08\u7b80\u5355\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7f13\u5b58\u8bbf\u95ee\u67d0\u4e9b\u78c1\u76d8\u4fe1\u606f\u3002pg_stat_slru \u89c6\u56fe\u4e3a\u6bcf\u4e2a\u8ddf\u8e2a\u7684 SLRU \u7f13\u5b58\u63d0\u4f9b\u4e00\u884c\uff0c\u663e\u793a\u5176\u7f13\u5b58\u9875\u8bbf\u95ee\u7edf\u8ba1\u3002\u5bf9\u4e8e\u6838\u5fc3\u670d\u52a1\u5668\u4e2d\u7684\u6bcf\u4e2a SLRU \u7f13\u5b58\uff0c\u90fd\u6709\u4e00\u4e2a\u540d\u79f0\u4ee5 _buffers \u4e3a\u540e\u7f00\u7684\u914d\u7f6e\u53c2\u6570\u6765\u63a7\u5236\u5176\u5927\u5c0f\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 truncates FROM pg_catalog.pg_stat_slru;", "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": "\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570", "description_zh_html": "<p>pg_stat_slru.truncates \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_slru</code></dd><dt>\u5b57\u6bb5</dt><dd><code>truncates</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>\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570</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": "\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570", "version": "17", "link_map": {"/zh/docs/17/monitoring-stats.html": "/docs/17/monitoring-stats.html"}, "body_html": "<p>pg_stat_slru.truncates \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_slru</code></dd><dt>\u5b57\u6bb5</dt><dd><code>truncates</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>\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570</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": "471350b1808057515d9f26ef287a058ecc8237e3712677cab0b4b148cbbfeda6", "content_hash": "6aaf2871c3e55d0ee7b051eb8a961c9e939f47be4ddbca6783073a40312c64fb", "source_database": "center", "source_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "signature": "SELECT truncates FROM pg_catalog.pg_stat_slru;", "tables_zh": [], "documented": true, "description": ["\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570"], "manual_html": "", "manual_path": "/docs/17/monitoring-stats.html", "sections_zh": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["PostgreSQL \u901a\u8fc7 SLRU\uff08\u7b80\u5355\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7f13\u5b58\u8bbf\u95ee\u67d0\u4e9b\u78c1\u76d8\u4fe1\u606f\u3002pg_stat_slru \u89c6\u56fe\u4e3a\u6bcf\u4e2a\u8ddf\u8e2a\u7684 SLRU \u7f13\u5b58\u63d0\u4f9b\u4e00\u884c\uff0c\u663e\u793a\u5176\u7f13\u5b58\u9875\u8bbf\u95ee\u7edf\u8ba1\u3002\u5bf9\u4e8e\u6838\u5fc3\u670d\u52a1\u5668\u4e2d\u7684\u6bcf\u4e2a SLRU \u7f13\u5b58\uff0c\u90fd\u6709\u4e00\u4e2a\u540d\u79f0\u4ee5 _buffers \u4e3a\u540e\u7f00\u7684\u914d\u7f6e\u53c2\u6570\u6765\u63a7\u5236\u5176\u5927\u5c0f\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 truncates FROM pg_catalog.pg_stat_slru;", "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[29]/div[5]/div[1]/table[0]/tbody[2]/tr[7]/td[0]/p[1]"]}], "language": "zh", "original_text": {"/versions/17/description/0": "Number of truncates for this SLRU", "/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_slru 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": "PostgreSQL accesses certain on-disk information via SLRU (simple least-recently-used) caches. The pg_stat_slru view will contain one row for each tracked SLRU cache, showing statistics about access to cached pages.\n\nFor each SLRU cache that's part of the core server, there is a configuration parameter that controls its size, with the suffix _buffers appended.", "/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": "5b29058f8119705d9d37b267855b5180cd16d40003d5c9b155e0509a89e332a6", "canonical_center_text_hash": "6aaf2871c3e55d0ee7b051eb8a961c9e939f47be4ddbca6783073a40312c64fb"}, "description_zh": "\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570", "comparison_data": {"view": "pg_stat_slru", "field": "truncates", "sql_type": "bigint", "units_mentioned": []}, "comparison_hash": "ef296edfdd39bf2ee0f916d0bfa659f132c10b996d58590d272acc3d8b38fa0a", "manual_language": "zh", "units_mentioned": [], "description_zh_html": "<p>pg_stat_slru.truncates \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_slru</code></dd><dt>\u5b57\u6bb5</dt><dd><code>truncates</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>\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570</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_slru", "facts": [{"label": "\u89c6\u56fe", "value": "pg_stat_slru"}, {"label": "\u5b57\u6bb5", "value": "truncates"}, {"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\u4e0a\u6b21\u91cd\u7f6e\u7684\u65f6\u95f4"}], "field": "truncates", "tables": [], "related": [{"url": "/wiki/catalog/pg_stat_slru/?v=18", "label": "pg_stat_slru \u5b57\u6bb5"}, {"url": "/docs/18/monitoring-stats.html", "label": "\u7edf\u8ba1\u6536\u96c6\u4e0e\u91cd\u7f6e\u51fd\u6570"}], "release": {"ref": 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"git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:08e987a66af27b98444a8057c256314eafa13611a3fb9e888214fc436824244b"}, "body_sha256": "ac25f5756ae4f3c16550d6fcbc9d0ed151b72aaf8aeadd9366ecab835c1d0f32", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "facts_zh": [{"label": "\u89c6\u56fe", "value": "pg_stat_slru"}, {"label": "\u5b57\u6bb5", "value": "truncates"}, {"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\u4e0a\u6b21\u91cd\u7f6e\u7684\u65f6\u95f4"}], "sections": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["PostgreSQL \u901a\u8fc7 SLRU\uff08\u7b80\u5355\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7f13\u5b58\u8bbf\u95ee\u67d0\u4e9b\u78c1\u76d8\u4fe1\u606f\u3002pg_stat_slru \u89c6\u56fe\u4e3a\u6bcf\u4e2a\u8ddf\u8e2a\u7684 SLRU \u7f13\u5b58\u63d0\u4f9b\u4e00\u884c\uff0c\u663e\u793a\u5176\u7f13\u5b58\u9875\u8bbf\u95ee\u7edf\u8ba1\u3002\u5bf9\u4e8e\u6838\u5fc3\u670d\u52a1\u5668\u4e2d\u7684\u6bcf\u4e2a SLRU \u7f13\u5b58\uff0c\u90fd\u6709\u4e00\u4e2a\u540d\u79f0\u4ee5 _buffers \u4e3a\u540e\u7f00\u7684\u914d\u7f6e\u53c2\u6570\u6765\u63a7\u5236\u5176\u5927\u5c0f\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 truncates FROM pg_catalog.pg_stat_slru;", "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_slru.truncates", "locale": "zh-Hans", "source": {"key": "pg_stat_slru-truncates", "locale": "zh-Hans", "version": "18", "text_hash": "2a7e2ef6332c85e206cbe5f60e341818822a691d2f69cebe0117323806bc523a", "collection": "metric", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "payload": {"facts": [{"label": "\u89c6\u56fe", "value": "pg_stat_slru"}, {"label": "\u5b57\u6bb5", "value": "truncates"}, {"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\u4e0a\u6b21\u91cd\u7f6e\u7684\u65f6\u95f4"}], "tables": [], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/18/monitoring-stats.html#", "anchor": "", "column": "truncates", "locale": "zh-Hans", "version": "18", "build_id": 107, "page_key": "monitoring-stats.html", "extraction": "exact-catalog-field", "source_hash": "0274aac7991450316bcf7be44635653b6d896fb00e321242c1b6674cb05c2e53", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:08e987a66af27b98444a8057c256314eafa13611a3fb9e888214fc436824244b"}, "body_sha256": "ac25f5756ae4f3c16550d6fcbc9d0ed151b72aaf8aeadd9366ecab835c1d0f32", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "sections": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["PostgreSQL \u901a\u8fc7 SLRU\uff08\u7b80\u5355\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7f13\u5b58\u8bbf\u95ee\u67d0\u4e9b\u78c1\u76d8\u4fe1\u606f\u3002pg_stat_slru \u89c6\u56fe\u4e3a\u6bcf\u4e2a\u8ddf\u8e2a\u7684 SLRU \u7f13\u5b58\u63d0\u4f9b\u4e00\u884c\uff0c\u663e\u793a\u5176\u7f13\u5b58\u9875\u8bbf\u95ee\u7edf\u8ba1\u3002\u5bf9\u4e8e\u6838\u5fc3\u670d\u52a1\u5668\u4e2d\u7684\u6bcf\u4e2a SLRU \u7f13\u5b58\uff0c\u90fd\u6709\u4e00\u4e2a\u540d\u79f0\u4ee5 _buffers \u4e3a\u540e\u7f00\u7684\u914d\u7f6e\u53c2\u6570\u6765\u63a7\u5236\u5176\u5927\u5c0f\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 truncates FROM pg_catalog.pg_stat_slru;", "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": "\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570", "description_zh_html": "<p>pg_stat_slru.truncates \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_slru</code></dd><dt>\u5b57\u6bb5</dt><dd><code>truncates</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>\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570</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": "\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570", "version": "18", "link_map": {"/zh/docs/18/monitoring-stats.html": "/docs/18/monitoring-stats.html"}, "body_html": "<p>pg_stat_slru.truncates \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_slru</code></dd><dt>\u5b57\u6bb5</dt><dd><code>truncates</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>\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570</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": "62d785010194747cd6aeecd0bcc73c7c64109e790d3d16c1089e6a8131b0c88c", "content_hash": "2a7e2ef6332c85e206cbe5f60e341818822a691d2f69cebe0117323806bc523a", "source_database": "center", "source_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "signature": "SELECT truncates FROM pg_catalog.pg_stat_slru;", "tables_zh": [], "documented": true, "description": ["\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570"], "manual_html": "", "manual_path": "/docs/18/monitoring-stats.html", "sections_zh": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["PostgreSQL \u901a\u8fc7 SLRU\uff08\u7b80\u5355\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7f13\u5b58\u8bbf\u95ee\u67d0\u4e9b\u78c1\u76d8\u4fe1\u606f\u3002pg_stat_slru \u89c6\u56fe\u4e3a\u6bcf\u4e2a\u8ddf\u8e2a\u7684 SLRU \u7f13\u5b58\u63d0\u4f9b\u4e00\u884c\uff0c\u663e\u793a\u5176\u7f13\u5b58\u9875\u8bbf\u95ee\u7edf\u8ba1\u3002\u5bf9\u4e8e\u6838\u5fc3\u670d\u52a1\u5668\u4e2d\u7684\u6bcf\u4e2a SLRU \u7f13\u5b58\uff0c\u90fd\u6709\u4e00\u4e2a\u540d\u79f0\u4ee5 _buffers \u4e3a\u540e\u7f00\u7684\u914d\u7f6e\u53c2\u6570\u6765\u63a7\u5236\u5176\u5927\u5c0f\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 truncates FROM pg_catalog.pg_stat_slru;", "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", "matched_nodes": ["#MONITORING-STATS/div[29]/div[5]/div[1]/table[0]/tbody[2]/tr[7]/td[0]/p[1]"]}], "language": "zh", "original_text": {"/versions/18/description/0": "Number of truncates for this SLRU", "/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_slru 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": "PostgreSQL accesses certain on-disk information via SLRU (simple least-recently-used) caches. The pg_stat_slru view will contain one row for each tracked SLRU cache, showing statistics about access to cached pages.\n\nFor each SLRU cache that's part of the core server, there is a configuration parameter that controls its size, with the suffix _buffers appended.", "/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": "d85963394ce3cd475841cac466739c7b8ec7c046ce70b1502a31ecdf47668dac", "canonical_center_text_hash": "2a7e2ef6332c85e206cbe5f60e341818822a691d2f69cebe0117323806bc523a"}, "description_zh": "\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570", "comparison_data": {"view": "pg_stat_slru", "field": "truncates", "sql_type": "bigint", "units_mentioned": []}, "comparison_hash": "ef296edfdd39bf2ee0f916d0bfa659f132c10b996d58590d272acc3d8b38fa0a", "manual_language": "zh", "units_mentioned": [], "description_zh_html": "<p>pg_stat_slru.truncates \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_slru</code></dd><dt>\u5b57\u6bb5</dt><dd><code>truncates</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>\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570</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_slru.truncates \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_slru</code></dd><dt>\u5b57\u6bb5</dt><dd><code>truncates</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>\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570</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_slru", "facts": [{"label": "\u89c6\u56fe", "value": "pg_stat_slru"}, {"label": "\u5b57\u6bb5", "value": "truncates"}, {"label": "SQL \u7c7b\u578b", 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"source-derived-structured-summary", "source_facts_revision": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "facts_zh": [{"label": "\u89c6\u56fe", "value": "pg_stat_slru"}, {"label": "\u5b57\u6bb5", "value": "truncates"}, {"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\u4e0a\u6b21\u91cd\u7f6e\u7684\u65f6\u95f4"}], "sections": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["PostgreSQL \u901a\u8fc7 SLRU\uff08\u7b80\u5355\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7f13\u5b58\u8bbf\u95ee\u67d0\u4e9b\u78c1\u76d8\u4fe1\u606f\u3002pg_stat_slru \u89c6\u56fe\u4e3a\u6bcf\u4e2a\u8ddf\u8e2a\u7684 SLRU \u7f13\u5b58\u63d0\u4f9b\u4e00\u884c\uff0c\u663e\u793a\u5176\u7f13\u5b58\u9875\u8bbf\u95ee\u7edf\u8ba1\u3002\u5bf9\u4e8e\u6838\u5fc3\u670d\u52a1\u5668\u4e2d\u7684\u6bcf\u4e2a SLRU \u7f13\u5b58\uff0c\u90fd\u6709\u4e00\u4e2a\u540d\u79f0\u4ee5 _buffers \u4e3a\u540e\u7f00\u7684\u914d\u7f6e\u53c2\u6570\u6765\u63a7\u5236\u5176\u5927\u5c0f\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 truncates FROM pg_catalog.pg_stat_slru;", "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_slru.truncates", "locale": "zh-Hans", "source": {"key": "pg_stat_slru-truncates", "locale": "zh-Hans", "version": "19", "text_hash": 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"exact-catalog-field", "source_hash": "38f7e14f495b50d93ec5fe73e5630957512a3cbd01aa83c8d7dd33abfeedbb62", "source_revision": "sha256:af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:65fda1f1b62a89992b84014c9157e61b67dbe8190e93945826efec668fad038c"}, "body_sha256": "fae43772e1879b7d6dd9845d75cbf1f9904e8eb8762d3fded316f59ada3594a4", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "sections": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["PostgreSQL \u901a\u8fc7 SLRU\uff08\u7b80\u5355\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7f13\u5b58\u8bbf\u95ee\u67d0\u4e9b\u78c1\u76d8\u4fe1\u606f\u3002pg_stat_slru \u89c6\u56fe\u4e3a\u6bcf\u4e2a\u8ddf\u8e2a\u7684 SLRU \u7f13\u5b58\u63d0\u4f9b\u4e00\u884c\uff0c\u663e\u793a\u5176\u7f13\u5b58\u9875\u8bbf\u95ee\u7edf\u8ba1\u3002\u5bf9\u4e8e\u6838\u5fc3\u670d\u52a1\u5668\u4e2d\u7684\u6bcf\u4e2a SLRU \u7f13\u5b58\uff0c\u90fd\u6709\u4e00\u4e2a\u540d\u79f0\u4ee5 _buffers \u4e3a\u540e\u7f00\u7684\u914d\u7f6e\u53c2\u6570\u6765\u63a7\u5236\u5176\u5927\u5c0f\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 truncates FROM pg_catalog.pg_stat_slru;", "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": "\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570", "description_zh_html": "<p>pg_stat_slru.truncates \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_slru</code></dd><dt>\u5b57\u6bb5</dt><dd><code>truncates</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>\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570</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": "\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570", "version": "19", "link_map": {"/zh/docs/19/monitoring-stats.html": "/docs/19/monitoring-stats.html"}, "body_html": "<p>pg_stat_slru.truncates \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_slru</code></dd><dt>\u5b57\u6bb5</dt><dd><code>truncates</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>\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570</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": "23cb9d9bb4c594ee05a1b3b6718b103127319f5b2286b139b18cf6105e35d621", "content_hash": "16068c98da32322f330f6bafb27a51d007296a44305161c1a8541fcf3980099b", "source_database": "center", "source_revision": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "signature": "SELECT truncates FROM pg_catalog.pg_stat_slru;", "tables_zh": [], "documented": true, "description": ["\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570"], "manual_html": "", "manual_path": "/docs/19/monitoring-stats.html", "sections_zh": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["PostgreSQL \u901a\u8fc7 SLRU\uff08\u7b80\u5355\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7f13\u5b58\u8bbf\u95ee\u67d0\u4e9b\u78c1\u76d8\u4fe1\u606f\u3002pg_stat_slru \u89c6\u56fe\u4e3a\u6bcf\u4e2a\u8ddf\u8e2a\u7684 SLRU \u7f13\u5b58\u63d0\u4f9b\u4e00\u884c\uff0c\u663e\u793a\u5176\u7f13\u5b58\u9875\u8bbf\u95ee\u7edf\u8ba1\u3002\u5bf9\u4e8e\u6838\u5fc3\u670d\u52a1\u5668\u4e2d\u7684\u6bcf\u4e2a SLRU \u7f13\u5b58\uff0c\u90fd\u6709\u4e00\u4e2a\u540d\u79f0\u4ee5 _buffers \u4e3a\u540e\u7f00\u7684\u914d\u7f6e\u53c2\u6570\u6765\u63a7\u5236\u5176\u5927\u5c0f\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 truncates FROM pg_catalog.pg_stat_slru;", "title": 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\u4e3a\u540e\u7f00\u7684\u914d\u7f6e\u53c2\u6570\u6765\u63a7\u5236\u5176\u5927\u5c0f\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 truncates FROM pg_catalog.pg_stat_slru;", "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_slru.truncates", "locale": "zh-Hans", "source": {"key": "pg_stat_slru-truncates", "locale": "zh-Hans", "version": "20", "text_hash": "c8ff4dee05e4b4b94154ca7cc44ef9591f9b61369c1013583eb0747a95e86854", "collection": "metric", "dataset_hash": 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"source_revision": "sha256:49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:98c980963b401d40bd50df72b909e7523e3148b8fdb48edd897de2efb67e5235"}, "body_sha256": "188cd14a71e2f41f090569bf32f046edfa8b7ab667da736cf95663aabeb4e05c", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "sections": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["PostgreSQL \u901a\u8fc7 SLRU\uff08\u7b80\u5355\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7f13\u5b58\u8bbf\u95ee\u67d0\u4e9b\u78c1\u76d8\u4fe1\u606f\u3002pg_stat_slru \u89c6\u56fe\u4e3a\u6bcf\u4e2a\u8ddf\u8e2a\u7684 SLRU \u7f13\u5b58\u63d0\u4f9b\u4e00\u884c\uff0c\u663e\u793a\u5176\u7f13\u5b58\u9875\u8bbf\u95ee\u7edf\u8ba1\u3002\u5bf9\u4e8e\u6838\u5fc3\u670d\u52a1\u5668\u4e2d\u7684\u6bcf\u4e2a SLRU \u7f13\u5b58\uff0c\u90fd\u6709\u4e00\u4e2a\u540d\u79f0\u4ee5 _buffers \u4e3a\u540e\u7f00\u7684\u914d\u7f6e\u53c2\u6570\u6765\u63a7\u5236\u5176\u5927\u5c0f\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 truncates FROM pg_catalog.pg_stat_slru;", "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": "\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570", "description_zh_html": "<p>pg_stat_slru.truncates 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\u7684\u622a\u65ad\u6b21\u6570</p><p><a href=\"/zh/docs/devel/monitoring-stats.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "d9b2f56ddc1c74829c9269888c36c2ba41193c3965bbb3ea8c0f0e0e273318a2", "content_hash": "c8ff4dee05e4b4b94154ca7cc44ef9591f9b61369c1013583eb0747a95e86854", "source_database": "center", "source_revision": "49c73aa4c9cacef8ca979276a28ac416c08e9e54c9baee4ae5fd116a35fa13ac"}, "signature": "SELECT truncates FROM pg_catalog.pg_stat_slru;", "tables_zh": [], "documented": true, "description": ["\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570"], "manual_html": "", "manual_path": "/docs/devel/monitoring-stats.html", "sections_zh": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["PostgreSQL \u901a\u8fc7 SLRU\uff08\u7b80\u5355\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7f13\u5b58\u8bbf\u95ee\u67d0\u4e9b\u78c1\u76d8\u4fe1\u606f\u3002pg_stat_slru 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["\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/devel/monitoring-stats.html", "method": "same-major semantic node", "sha256": "1d9a086fb4c6fdd9a56d3a7a28e8c164354ef0bf50c402f06ebe174538f96a4f", "language": "zh", "matched_nodes": ["#MONITORING-STATS/div[33]/div[5]/div[1]/table[0]/tbody[2]/tr[7]/td[0]/p[1]"]}], "language": "zh", "original_text": {"/summary": "Number of truncates for this SLRU", "/versions/20/description/0": "Number of truncates for this SLRU", "/versions/20/facts/0/label": "View", "/versions/20/facts/1/label": "Field", "/versions/20/facts/2/label": "SQL type", "/versions/20/facts/3/label": "Units named in the field definition", "/versions/20/facts/3/value": "Not specified", "/versions/20/facts/4/label": "Reset observation", "/versions/20/facts/4/value": "Time at which these statistics were last reset", 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{"url": "/zh/docs/18/monitoring-stats.html#", "anchor": "", "column": "truncates", "locale": "zh-Hans", "version": "18", "build_id": 107, "page_key": "monitoring-stats.html", "extraction": "exact-catalog-field", "source_hash": "0274aac7991450316bcf7be44635653b6d896fb00e321242c1b6674cb05c2e53", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:08e987a66af27b98444a8057c256314eafa13611a3fb9e888214fc436824244b"}, "body_sha256": "ac25f5756ae4f3c16550d6fcbc9d0ed151b72aaf8aeadd9366ecab835c1d0f32", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "facts_zh": [{"label": "\u89c6\u56fe", "value": "pg_stat_slru"}, {"label": "\u5b57\u6bb5", "value": "truncates"}, {"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\u4e0a\u6b21\u91cd\u7f6e\u7684\u65f6\u95f4"}], "sections": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["PostgreSQL \u901a\u8fc7 SLRU\uff08\u7b80\u5355\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7f13\u5b58\u8bbf\u95ee\u67d0\u4e9b\u78c1\u76d8\u4fe1\u606f\u3002pg_stat_slru \u89c6\u56fe\u4e3a\u6bcf\u4e2a\u8ddf\u8e2a\u7684 SLRU \u7f13\u5b58\u63d0\u4f9b\u4e00\u884c\uff0c\u663e\u793a\u5176\u7f13\u5b58\u9875\u8bbf\u95ee\u7edf\u8ba1\u3002\u5bf9\u4e8e\u6838\u5fc3\u670d\u52a1\u5668\u4e2d\u7684\u6bcf\u4e2a SLRU \u7f13\u5b58\uff0c\u90fd\u6709\u4e00\u4e2a\u540d\u79f0\u4ee5 _buffers \u4e3a\u540e\u7f00\u7684\u914d\u7f6e\u53c2\u6570\u6765\u63a7\u5236\u5176\u5927\u5c0f\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 truncates FROM pg_catalog.pg_stat_slru;", "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_slru.truncates", "locale": "zh-Hans", "source": {"key": "pg_stat_slru-truncates", "locale": "zh-Hans", "version": "18", "text_hash": "2a7e2ef6332c85e206cbe5f60e341818822a691d2f69cebe0117323806bc523a", "collection": "metric", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "payload": {"facts": [{"label": "\u89c6\u56fe", "value": "pg_stat_slru"}, {"label": "\u5b57\u6bb5", "value": "truncates"}, {"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\u4e0a\u6b21\u91cd\u7f6e\u7684\u65f6\u95f4"}], "tables": [], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/18/monitoring-stats.html#", "anchor": "", "column": "truncates", "locale": "zh-Hans", "version": "18", "build_id": 107, "page_key": "monitoring-stats.html", "extraction": "exact-catalog-field", "source_hash": "0274aac7991450316bcf7be44635653b6d896fb00e321242c1b6674cb05c2e53", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:08e987a66af27b98444a8057c256314eafa13611a3fb9e888214fc436824244b"}, "body_sha256": "ac25f5756ae4f3c16550d6fcbc9d0ed151b72aaf8aeadd9366ecab835c1d0f32", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "sections": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["PostgreSQL \u901a\u8fc7 SLRU\uff08\u7b80\u5355\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7f13\u5b58\u8bbf\u95ee\u67d0\u4e9b\u78c1\u76d8\u4fe1\u606f\u3002pg_stat_slru \u89c6\u56fe\u4e3a\u6bcf\u4e2a\u8ddf\u8e2a\u7684 SLRU \u7f13\u5b58\u63d0\u4f9b\u4e00\u884c\uff0c\u663e\u793a\u5176\u7f13\u5b58\u9875\u8bbf\u95ee\u7edf\u8ba1\u3002\u5bf9\u4e8e\u6838\u5fc3\u670d\u52a1\u5668\u4e2d\u7684\u6bcf\u4e2a SLRU \u7f13\u5b58\uff0c\u90fd\u6709\u4e00\u4e2a\u540d\u79f0\u4ee5 _buffers \u4e3a\u540e\u7f00\u7684\u914d\u7f6e\u53c2\u6570\u6765\u63a7\u5236\u5176\u5927\u5c0f\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 truncates FROM pg_catalog.pg_stat_slru;", "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": "\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570", "description_zh_html": "<p>pg_stat_slru.truncates \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_slru</code></dd><dt>\u5b57\u6bb5</dt><dd><code>truncates</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>\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570</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": "\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570", "version": "18", "link_map": {"/zh/docs/18/monitoring-stats.html": "/docs/18/monitoring-stats.html"}, "body_html": "<p>pg_stat_slru.truncates \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_slru</code></dd><dt>\u5b57\u6bb5</dt><dd><code>truncates</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>\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570</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": "62d785010194747cd6aeecd0bcc73c7c64109e790d3d16c1089e6a8131b0c88c", "content_hash": "2a7e2ef6332c85e206cbe5f60e341818822a691d2f69cebe0117323806bc523a", "source_database": "center", "source_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "signature": "SELECT truncates FROM pg_catalog.pg_stat_slru;", "tables_zh": [], "documented": true, "description": ["\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570"], "manual_html": "", "manual_path": "/docs/18/monitoring-stats.html", "sections_zh": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["PostgreSQL \u901a\u8fc7 SLRU\uff08\u7b80\u5355\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u7f13\u5b58\u8bbf\u95ee\u67d0\u4e9b\u78c1\u76d8\u4fe1\u606f\u3002pg_stat_slru \u89c6\u56fe\u4e3a\u6bcf\u4e2a\u8ddf\u8e2a\u7684 SLRU \u7f13\u5b58\u63d0\u4f9b\u4e00\u884c\uff0c\u663e\u793a\u5176\u7f13\u5b58\u9875\u8bbf\u95ee\u7edf\u8ba1\u3002\u5bf9\u4e8e\u6838\u5fc3\u670d\u52a1\u5668\u4e2d\u7684\u6bcf\u4e2a SLRU \u7f13\u5b58\uff0c\u90fd\u6709\u4e00\u4e2a\u540d\u79f0\u4ee5 _buffers \u4e3a\u540e\u7f00\u7684\u914d\u7f6e\u53c2\u6570\u6765\u63a7\u5236\u5176\u5927\u5c0f\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 truncates FROM pg_catalog.pg_stat_slru;", "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", "matched_nodes": ["#MONITORING-STATS/div[29]/div[5]/div[1]/table[0]/tbody[2]/tr[7]/td[0]/p[1]"]}], "language": "zh", "original_text": {"/versions/18/description/0": "Number of truncates for this SLRU", "/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_slru 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": "PostgreSQL accesses certain on-disk information via SLRU (simple least-recently-used) caches. The pg_stat_slru view will contain one row for each tracked SLRU cache, showing statistics about access to cached pages.\n\nFor each SLRU cache that's part of the core server, there is a configuration parameter that controls its size, with the suffix _buffers appended.", "/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": "d85963394ce3cd475841cac466739c7b8ec7c046ce70b1502a31ecdf47668dac", "canonical_center_text_hash": "2a7e2ef6332c85e206cbe5f60e341818822a691d2f69cebe0117323806bc523a"}, "description_zh": "\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570", "comparison_data": {"view": "pg_stat_slru", "field": "truncates", "sql_type": "bigint", "units_mentioned": []}, "comparison_hash": "ef296edfdd39bf2ee0f916d0bfa659f132c10b996d58590d272acc3d8b38fa0a", "manual_language": "zh", "units_mentioned": [], "description_zh_html": "<p>pg_stat_slru.truncates \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_slru</code></dd><dt>\u5b57\u6bb5</dt><dd><code>truncates</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>\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570</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_slru.truncates \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_slru</code></dd><dt>\u5b57\u6bb5</dt><dd><code>truncates</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>\u8fd9\u4e2a SLRU \u7684\u622a\u65ad\u6b21\u6570</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": ""}}