{"kind": "metric", "major": "18", "item": {"slug": "pg_stat_activity-leader_pid", "name": "pg_stat_activity.leader_pid", "name_zh": "", "category": "pg_stat_activity", "summary": "\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u67e5\u8be2\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u7684\u8fdb\u7a0b ID\uff1b\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u9886\u5bfc\u8005\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\u7684\u8fdb\u7a0b ID\u3002NULL \u8868\u793a\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u6216\u9886\u5bfc\u8005\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u6216\u8005\u4e0d\u53c2\u4e0e\u4efb\u4f55\u5e76\u884c\u64cd\u4f5c\u3002", "aliases": ["leader_pid", "pg_stat_activity"], "content_hash": "d5eaf4448629ae55daeb46275b9164eb4f3b9b690cb47e94759a9a1cbfb93fda", "versions": {"13": {"view": "pg_stat_activity", "facts": [{"label": "\u89c6\u56fe", "value": "pg_stat_activity"}, {"label": "\u5b57\u6bb5", "value": "leader_pid"}, {"label": "SQL \u7c7b\u578b", "value": "integer"}, {"label": "\u5b57\u6bb5\u5b9a\u4e49\u8bb0\u8f7d\u7684\u5355\u4f4d", "value": "\u672a\u6307\u5b9a"}, {"label": "\u91cd\u7f6e\u6761\u4ef6", "value": "\u624b\u518c\u672a\u4e3a\u6b64\u89c6\u56fe\u8bb0\u8f7d stats_reset \u5b57\u6bb5"}], "field": "leader_pid", "tables": [], "related": [{"url": "/wiki/catalog/pg_stat_activity/?v=13", "label": "pg_stat_activity \u5b57\u6bb5"}, {"url": "/docs/13/monitoring-stats.html", "label": "\u7edf\u8ba1\u6536\u96c6\u4e0e\u91cd\u7f6e\u51fd\u6570"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v13.23/postgresql-13.23.tar.bz2", "label": "13.23", "major": "13", "channel": "stable", "revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "sources": [{"url": "/docs/13/monitoring-stats.html#PG-STAT-ACTIVITY-VIEW", "path": "monitoring-stats.html", "label": "PostgreSQL 13 English manual", "sha256": 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"leader_pid"}, {"label": "SQL \u7c7b\u578b", "value": "integer"}, {"label": "\u5b57\u6bb5\u5b9a\u4e49\u8bb0\u8f7d\u7684\u5355\u4f4d", "value": "\u672a\u6307\u5b9a"}, {"label": "\u91cd\u7f6e\u6761\u4ef6", "value": "\u624b\u518c\u672a\u4e3a\u6b64\u89c6\u56fe\u8bb0\u8f7d stats_reset \u5b57\u6bb5"}], "sections": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["pg_stat_activity \u89c6\u56fe\u6bcf\u4e2a\u670d\u52a1\u5668\u8fdb\u7a0b\u5c06\u6709\u4e00\u884c\uff0c\u663e\u793a\u4e0e\u8be5\u8fdb\u7a0b\u5f53\u524d\u6d3b\u52a8\u76f8\u5173\u7684\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 leader_pid FROM pg_catalog.pg_stat_activity;", "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": "integer", "center_zh": {"title": "pg_stat_activity.leader_pid", "locale": "zh-Hans", "source": {"key": "pg_stat_activity-leader_pid", "locale": "zh-Hans", "version": "13", "text_hash": "e25d1c18c1ebe71720222386a29a6433ed479acffb35dba930fbbbacc55cce25", "collection": "metric", "dataset_hash": "7c31b524dfe136022d39a6ae8dcfac6b3bbd5f8fdaf422536599981252aff0c9", "source_database": "center", "source_revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "payload": {"facts": [{"label": "\u89c6\u56fe", "value": "pg_stat_activity"}, {"label": "\u5b57\u6bb5", "value": "leader_pid"}, {"label": "SQL \u7c7b\u578b", "value": "integer"}, {"label": "\u5b57\u6bb5\u5b9a\u4e49\u8bb0\u8f7d\u7684\u5355\u4f4d", "value": "\u672a\u6307\u5b9a"}, {"label": "\u91cd\u7f6e\u6761\u4ef6", "value": "\u624b\u518c\u672a\u4e3a\u6b64\u89c6\u56fe\u8bb0\u8f7d stats_reset \u5b57\u6bb5"}], "tables": [], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/13/monitoring-stats.html#", "anchor": "", "column": "leader_pid", "locale": "zh-Hans", "version": "13", "build_id": 66, "page_key": "monitoring-stats.html", "extraction": "exact-catalog-field", "source_hash": "57373e7034db8002ff131250ff4fe83a8251455fad5580597598b0863a245ece", "source_revision": "unknown:rendered-translation-baseline", "translation_revision": "snapshot:sha256:a13a825c39f0268ef1cfe9137e283e38d0da73b2d7894f0733c7b26372a4f6a4"}, "body_sha256": "a11d3c6974bc2d7a281f4e7b3d845e0d78c6c59bfcac9ae2eb2358f7c2ab5624", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "sections": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["pg_stat_activity \u89c6\u56fe\u6bcf\u4e2a\u670d\u52a1\u5668\u8fdb\u7a0b\u5c06\u6709\u4e00\u884c\uff0c\u663e\u793a\u4e0e\u8be5\u8fdb\u7a0b\u5f53\u524d\u6d3b\u52a8\u76f8\u5173\u7684\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 leader_pid FROM pg_catalog.pg_stat_activity;", "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": "\u5982\u679c\u6b64\u8fdb\u7a0b\u662f\u5e76\u884c\u67e5\u8be2\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u7684\u8fdb\u7a0b ID\u3002\u5982\u679c\u6b64\u8fdb\u7a0b\u662f\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u6216\u8005\u4e0d\u53c2\u4e0e\u5e76\u884c\u67e5\u8be2\uff0c\u5219\u4e3a NULL\u3002", "description_zh_html": "<p>pg_stat_activity.leader_pid \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_activity</code></dd><dt>\u5b57\u6bb5</dt><dd><code>leader_pid</code></dd><dt>SQL \u7c7b\u578b</dt><dd><code>integer</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><p>\u5982\u679c\u6b64\u8fdb\u7a0b\u662f\u5e76\u884c\u67e5\u8be2\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u7684\u8fdb\u7a0b ID\u3002\u5982\u679c\u6b64\u8fdb\u7a0b\u662f\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u6216\u8005\u4e0d\u53c2\u4e0e\u5e76\u884c\u67e5\u8be2\uff0c\u5219\u4e3a NULL\u3002</p><p><a href=\"/zh/docs/13/monitoring-stats.html#\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "\u5982\u679c\u6b64\u8fdb\u7a0b\u662f\u5e76\u884c\u67e5\u8be2\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u7684\u8fdb\u7a0b ID\u3002\u5982\u679c\u6b64\u8fdb\u7a0b\u662f\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u6216\u8005\u4e0d\u53c2\u4e0e\u5e76\u884c\u67e5\u8be2\uff0c\u5219\u4e3a NULL\u3002", "version": "13", "link_map": {"/zh/docs/13/monitoring-stats.html": "/docs/13/monitoring-stats.html"}, "body_html": "<p>pg_stat_activity.leader_pid \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_activity</code></dd><dt>\u5b57\u6bb5</dt><dd><code>leader_pid</code></dd><dt>SQL \u7c7b\u578b</dt><dd><code>integer</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><p>\u5982\u679c\u6b64\u8fdb\u7a0b\u662f\u5e76\u884c\u67e5\u8be2\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u7684\u8fdb\u7a0b ID\u3002\u5982\u679c\u6b64\u8fdb\u7a0b\u662f\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u6216\u8005\u4e0d\u53c2\u4e0e\u5e76\u884c\u67e5\u8be2\uff0c\u5219\u4e3a NULL\u3002</p><p><a 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": "efe2a0b6c2494e67b9745ece23f8a9a93b8bdbffd17aa6bfa011a223847dddd9", "content_hash": "e25d1c18c1ebe71720222386a29a6433ed479acffb35dba930fbbbacc55cce25", "source_database": "center", "source_revision": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "signature": "SELECT leader_pid FROM pg_catalog.pg_stat_activity;", "tables_zh": [], "documented": true, "description": ["\u5982\u679c\u6b64\u8fdb\u7a0b\u662f\u5e76\u884c\u67e5\u8be2\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u7684\u8fdb\u7a0b ID\u3002\u5982\u679c\u6b64\u8fdb\u7a0b\u662f\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u6216\u8005\u4e0d\u53c2\u4e0e\u5e76\u884c\u67e5\u8be2\uff0c\u5219\u4e3a NULL\u3002"], "manual_html": "", "manual_path": "/docs/13/monitoring-stats.html", "sections_zh": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["pg_stat_activity \u89c6\u56fe\u6bcf\u4e2a\u670d\u52a1\u5668\u8fdb\u7a0b\u5c06\u6709\u4e00\u884c\uff0c\u663e\u793a\u4e0e\u8be5\u8fdb\u7a0b\u5f53\u524d\u6d3b\u52a8\u76f8\u5173\u7684\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 leader_pid FROM pg_catalog.pg_stat_activity;", "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": "1afff4ad1a4bc0c7e04a62d13adebcc1d39c30aca969618fab0cca8d0a115a96", "language": "zh", "matched_nodes": ["#MONITORING-STATS/div[7]/div[3]/div[1]/table[0]/tbody[2]/tr[3]/td[0]/p[1]", "#MONITORING-STATS/div[7]/p[2]"]}], "language": "zh", "original_text": {"/versions/13/description/0": "Process ID of the parallel group leader, if this process is a parallel query worker. NULL if this process is a parallel group leader or does not participate in parallel query.", "/versions/13/facts/0/label": "View", "/versions/13/facts/1/label": "Field", "/versions/13/facts/2/label": "SQL type", "/versions/13/facts/3/label": "Units named in the field definition", "/versions/13/facts/3/value": "Not specified", "/versions/13/facts/4/label": "Reset observation", "/versions/13/facts/4/value": "No stats_reset field is documented for this view", "/versions/13/related/0/label": "pg_stat_activity columns", "/versions/13/related/1/label": "Statistics collection and reset functions", "/versions/13/sections/0/title": "View semantics", "/versions/13/sections/1/title": "Collection and reset context", "/versions/13/sections/2/title": "Inspect this field", "/versions/13/sections/0/paragraphs/0": "The pg_stat_activity view will have one row per server process, showing information related to the current activity of that process.", "/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": "568613a56c6ea7cda538131a6e320c64f1a7532dd4778842bb36820064115e85", "canonical_center_text_hash": "e25d1c18c1ebe71720222386a29a6433ed479acffb35dba930fbbbacc55cce25"}, "description_zh": "\u5982\u679c\u6b64\u8fdb\u7a0b\u662f\u5e76\u884c\u67e5\u8be2\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u7684\u8fdb\u7a0b ID\u3002\u5982\u679c\u6b64\u8fdb\u7a0b\u662f\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u6216\u8005\u4e0d\u53c2\u4e0e\u5e76\u884c\u67e5\u8be2\uff0c\u5219\u4e3a NULL\u3002", "comparison_data": {"view": "pg_stat_activity", "field": "leader_pid", "sql_type": "integer", "units_mentioned": []}, "comparison_hash": "f89284edc4852ed2535d67bc526c03b7de3fdfbfd87ef7a05ab41ef7a3187ebf", "manual_language": "zh", "units_mentioned": [], "description_zh_html": "<p>pg_stat_activity.leader_pid \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_activity</code></dd><dt>\u5b57\u6bb5</dt><dd><code>leader_pid</code></dd><dt>SQL \u7c7b\u578b</dt><dd><code>integer</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><p>\u5982\u679c\u6b64\u8fdb\u7a0b\u662f\u5e76\u884c\u67e5\u8be2\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u7684\u8fdb\u7a0b ID\u3002\u5982\u679c\u6b64\u8fdb\u7a0b\u662f\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u6216\u8005\u4e0d\u53c2\u4e0e\u5e76\u884c\u67e5\u8be2\uff0c\u5219\u4e3a NULL\u3002</p><p><a href=\"/zh/docs/13/monitoring-stats.html\" rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "14": {"view": "pg_stat_activity", "facts": [{"label": "\u89c6\u56fe", "value": "pg_stat_activity"}, {"label": "\u5b57\u6bb5", "value": "leader_pid"}, {"label": "SQL 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href=\"/zh/docs/14/monitoring-stats.html#\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "\u5982\u679c\u6b64\u8fdb\u7a0b\u662f\u5e76\u884c\u67e5\u8be2\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u7684\u8fdb\u7a0b ID\u3002\u5982\u679c\u6b64\u8fdb\u7a0b\u662f\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u6216\u8005\u4e0d\u53c2\u4e0e\u5e76\u884c\u67e5\u8be2\uff0c\u5219\u4e3a NULL\u3002", "version": "14", "link_map": {"/zh/docs/14/monitoring-stats.html": "/docs/14/monitoring-stats.html"}, "body_html": "<p>pg_stat_activity.leader_pid \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_activity</code></dd><dt>\u5b57\u6bb5</dt><dd><code>leader_pid</code></dd><dt>SQL 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NULL if this process is a parallel group leader or does not participate in parallel query.", "/versions/14/facts/0/label": "View", "/versions/14/facts/1/label": "Field", "/versions/14/facts/2/label": "SQL type", "/versions/14/facts/3/label": "Units named in the field definition", "/versions/14/facts/3/value": "Not specified", "/versions/14/facts/4/label": "Reset observation", "/versions/14/facts/4/value": "No stats_reset field is documented for this view", "/versions/14/related/0/label": "pg_stat_activity columns", "/versions/14/related/1/label": "Statistics collection and reset functions", "/versions/14/sections/0/title": "View semantics", "/versions/14/sections/1/title": "Collection and reset context", "/versions/14/sections/2/title": "Inspect this field", "/versions/14/sections/0/paragraphs/0": "The pg_stat_activity view will have one row per server process, showing information related to the current activity of that process.", "/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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href=\"/zh/docs/15/monitoring-stats.html#\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>"}, "summary": "\u5982\u679c\u6b64\u8fdb\u7a0b\u662f\u5e76\u884c\u67e5\u8be2\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u7684\u8fdb\u7a0b ID\u3002\u5982\u679c\u6b64\u8fdb\u7a0b\u662f\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u6216\u8005\u4e0d\u53c2\u4e0e\u5e76\u884c\u67e5\u8be2\uff0c\u5219\u4e3a NULL\u3002", "version": "15", "link_map": {"/zh/docs/15/monitoring-stats.html": "/docs/15/monitoring-stats.html"}, "body_html": "<p>pg_stat_activity.leader_pid \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_activity</code></dd><dt>\u5b57\u6bb5</dt><dd><code>leader_pid</code></dd><dt>SQL 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NULL if this process is a parallel group leader or does not participate in parallel query.", "/versions/15/facts/0/label": "View", "/versions/15/facts/1/label": "Field", "/versions/15/facts/2/label": "SQL type", "/versions/15/facts/3/label": "Units named in the field definition", "/versions/15/facts/3/value": "Not specified", "/versions/15/facts/4/label": "Reset observation", "/versions/15/facts/4/value": "No stats_reset field is documented for this view", "/versions/15/related/0/label": "pg_stat_activity columns", "/versions/15/related/1/label": "Statistics collection and reset functions", "/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": "The pg_stat_activity view will have one row per server process, showing information related to the current activity of that process.", "/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": "fc98ba9babe04c95f916caa708c4aefaf6f043c67a9e7556e4dc0a4d98c78fda", "canonical_center_text_hash": "335b3fe8030b688a8fd5e8d07d2e95e532bbf20f6d9e0108aecdc9e3b88b9f33"}, "description_zh": "\u5982\u679c\u6b64\u8fdb\u7a0b\u662f\u5e76\u884c\u67e5\u8be2\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u7684\u8fdb\u7a0b ID\u3002\u5982\u679c\u6b64\u8fdb\u7a0b\u662f\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u6216\u8005\u4e0d\u53c2\u4e0e\u5e76\u884c\u67e5\u8be2\uff0c\u5219\u4e3a NULL\u3002", "comparison_data": {"view": "pg_stat_activity", "field": "leader_pid", "sql_type": "integer", "units_mentioned": []}, "comparison_hash": "f89284edc4852ed2535d67bc526c03b7de3fdfbfd87ef7a05ab41ef7a3187ebf", "manual_language": "zh", 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\u7c7b\u578b", "value": "integer"}, {"label": "\u5b57\u6bb5\u5b9a\u4e49\u8bb0\u8f7d\u7684\u5355\u4f4d", "value": "\u672a\u6307\u5b9a"}, {"label": "\u91cd\u7f6e\u6761\u4ef6", "value": "\u624b\u518c\u672a\u4e3a\u6b64\u89c6\u56fe\u8bb0\u8f7d stats_reset \u5b57\u6bb5"}], "field": "leader_pid", "tables": [], "related": [{"url": "/wiki/catalog/pg_stat_activity/?v=16", "label": "pg_stat_activity \u5b57\u6bb5"}, {"url": "/docs/16/monitoring-stats.html", "label": "\u7edf\u8ba1\u6536\u96c6\u4e0e\u91cd\u7f6e\u51fd\u6570"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v16.15/postgresql-16.15.tar.bz2", "label": "16.15", "major": "16", "channel": "stable", "revision": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "sources": [{"url": "/docs/16/monitoring-stats.html#PG-STAT-ACTIVITY-VIEW", "path": "monitoring-stats.html", "label": "PostgreSQL 16 English manual", "sha256": "a4c274defe8a41ff2895040cd542b5499063b844669ff3336de1a1317c3fe086"}], "zh_from": {"kind": 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\u8868\u793a\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u6216\u9886\u5bfc\u8005\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u6216\u8005\u4e0d\u53c2\u4e0e\u4efb\u4f55\u5e76\u884c\u64cd\u4f5c\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": "\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u67e5\u8be2\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u7684\u8fdb\u7a0b ID\uff1b\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u9886\u5bfc\u8005\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\u7684\u8fdb\u7a0b ID\u3002NULL \u8868\u793a\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u6216\u9886\u5bfc\u8005\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u6216\u8005\u4e0d\u53c2\u4e0e\u4efb\u4f55\u5e76\u884c\u64cd\u4f5c\u3002", "version": "17", "link_map": {"/zh/docs/17/monitoring-stats.html": 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rel=\"nofollow\">\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587</a>\u3002</p>", "body_sha256": "590959dd7194538a385eb022cb4f22093c1d00d30a0212a97bf23bcb0209486c", "content_hash": "e794740c36cd135549ca2b94d78bf0b427fa3f05a0076276097aee98b9e757cf", "source_database": "center", "source_revision": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "signature": "SELECT leader_pid FROM pg_catalog.pg_stat_activity;", "tables_zh": [], "documented": true, "description": ["\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u67e5\u8be2\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u7684\u8fdb\u7a0b ID\uff1b\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u9886\u5bfc\u8005\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\u7684\u8fdb\u7a0b ID\u3002NULL 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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"]}], "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[7]/div[3]/div[1]/table[0]/tbody[2]/tr[3]/td[0]/p[1]", "#MONITORING-STATS/div[7]/p[2]"]}], "language": "zh", "original_text": {"/versions/17/description/0": "Process ID of the parallel group leader if this process is a parallel query worker, or process ID of the leader apply worker if this process is a parallel apply worker. NULL indicates that this process is a parallel group leader or leader apply worker, or does not participate in any parallel operation.", "/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": "No stats_reset field is documented for this view", "/versions/17/related/0/label": "pg_stat_activity 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_activity view will have one row per server process, showing information related to the current activity of that process.", "/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": "00e89fc0eaf26b1d8ec28c78c06ba9b55b7e42559e18cf8e6cdac033f551a7c3", "canonical_center_text_hash": "e794740c36cd135549ca2b94d78bf0b427fa3f05a0076276097aee98b9e757cf"}, "description_zh": "\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u67e5\u8be2\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u7684\u8fdb\u7a0b ID\uff1b\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u9886\u5bfc\u8005\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\u7684\u8fdb\u7a0b ID\u3002NULL \u8868\u793a\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u6216\u9886\u5bfc\u8005\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u6216\u8005\u4e0d\u53c2\u4e0e\u4efb\u4f55\u5e76\u884c\u64cd\u4f5c\u3002", "comparison_data": {"view": "pg_stat_activity", "field": "leader_pid", "sql_type": "integer", "units_mentioned": []}, "comparison_hash": "f89284edc4852ed2535d67bc526c03b7de3fdfbfd87ef7a05ab41ef7a3187ebf", "manual_language": "zh", "units_mentioned": [], "description_zh_html": "<p>pg_stat_activity.leader_pid \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_activity</code></dd><dt>\u5b57\u6bb5</dt><dd><code>leader_pid</code></dd><dt>SQL \u7c7b\u578b</dt><dd><code>integer</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><p>\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u67e5\u8be2\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u7684\u8fdb\u7a0b ID\uff1b\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u9886\u5bfc\u8005\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\u7684\u8fdb\u7a0b ID\u3002NULL 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"\u7edf\u8ba1\u6536\u96c6\u4e0e\u91cd\u7f6e\u51fd\u6570"}], "release": {"ref": "https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2", "label": "18.6", "major": "18", "channel": "stable", "revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "sources": [{"url": "/docs/18/monitoring-stats.html#PG-STAT-ACTIVITY-VIEW", "path": "monitoring-stats.html", "label": "PostgreSQL 18 English manual", "sha256": "aa979eed08627fbf715a9d792094a162a73671db5af810f3ab2aad3e073d5722"}], "zh_from": {"kind": "same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/18/monitoring-stats.html#", "anchor": "", "column": "leader_pid", "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": "0044dfa9b67e0f07f1d8054618b7efab51e95aaea09f2df4996e30196a7c5517", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "facts_zh": [{"label": "\u89c6\u56fe", "value": "pg_stat_activity"}, {"label": "\u5b57\u6bb5", "value": "leader_pid"}, {"label": "SQL \u7c7b\u578b", "value": "integer"}, {"label": "\u5b57\u6bb5\u5b9a\u4e49\u8bb0\u8f7d\u7684\u5355\u4f4d", "value": "\u672a\u6307\u5b9a"}, {"label": "\u91cd\u7f6e\u6761\u4ef6", "value": "\u624b\u518c\u672a\u4e3a\u6b64\u89c6\u56fe\u8bb0\u8f7d stats_reset \u5b57\u6bb5"}], "sections": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["pg_stat_activity 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NULL indicates that this process is a parallel group leader or leader apply worker, or does not participate in any parallel operation.", "/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": "No stats_reset field is documented for this view", "/versions/18/related/0/label": "pg_stat_activity 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_activity view will have one row per server process, showing information related to the current activity of that process.", "/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": "d5f5731af6c9afd550a284bf2be7f2333fbbc1b73776ae9e9b790c77852c09e1", "canonical_center_text_hash": "61ecf21e33139bf736d35aa91b1882d901d687931b3a7f5a6f9a3d696d884380"}, "description_zh": "\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u67e5\u8be2\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u7684\u8fdb\u7a0b ID\uff1b\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u9886\u5bfc\u8005\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\u7684\u8fdb\u7a0b ID\u3002NULL \u8868\u793a\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u6216\u9886\u5bfc\u8005\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u6216\u8005\u4e0d\u53c2\u4e0e\u4efb\u4f55\u5e76\u884c\u64cd\u4f5c\u3002", "comparison_data": {"view": "pg_stat_activity", "field": "leader_pid", "sql_type": "integer", "units_mentioned": []}, "comparison_hash": "f89284edc4852ed2535d67bc526c03b7de3fdfbfd87ef7a05ab41ef7a3187ebf", "manual_language": "zh", "units_mentioned": [], "description_zh_html": "<p>pg_stat_activity.leader_pid \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_activity</code></dd><dt>\u5b57\u6bb5</dt><dd><code>leader_pid</code></dd><dt>SQL \u7c7b\u578b</dt><dd><code>integer</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><p>\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u67e5\u8be2\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u7684\u8fdb\u7a0b ID\uff1b\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u9886\u5bfc\u8005\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\u7684\u8fdb\u7a0b ID\u3002NULL \u8868\u793a\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u6216\u9886\u5bfc\u8005\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u6216\u8005\u4e0d\u53c2\u4e0e\u4efb\u4f55\u5e76\u884c\u64cd\u4f5c\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_activity.leader_pid \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_activity</code></dd><dt>\u5b57\u6bb5</dt><dd><code>leader_pid</code></dd><dt>SQL \u7c7b\u578b</dt><dd><code>integer</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><p>\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u67e5\u8be2\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u7684\u8fdb\u7a0b ID\uff1b\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u9886\u5bfc\u8005\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\u7684\u8fdb\u7a0b ID\u3002NULL \u8868\u793a\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u6216\u9886\u5bfc\u8005\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u6216\u8005\u4e0d\u53c2\u4e0e\u4efb\u4f55\u5e76\u884c\u64cd\u4f5c\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_activity", "facts": [{"label": "\u89c6\u56fe", "value": "pg_stat_activity"}, {"label": "\u5b57\u6bb5", "value": "leader_pid"}, {"label": "SQL \u7c7b\u578b", "value": "integer"}, {"label": "\u5b57\u6bb5\u5b9a\u4e49\u8bb0\u8f7d\u7684\u5355\u4f4d", "value": "\u672a\u6307\u5b9a"}, {"label": "\u91cd\u7f6e\u6761\u4ef6", "value": "\u624b\u518c\u672a\u4e3a\u6b64\u89c6\u56fe\u8bb0\u8f7d stats_reset \u5b57\u6bb5"}], "field": 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"same-version-chinese-manual-with-source-derived-structured-summary", "manual": {"url": "/zh/docs/19/monitoring-stats.html#", "anchor": "", "column": "leader_pid", "locale": "zh-Hans", "version": "19", "build_id": 109, "page_key": "monitoring-stats.html", "extraction": "exact-catalog-field", "source_hash": "38f7e14f495b50d93ec5fe73e5630957512a3cbd01aa83c8d7dd33abfeedbb62", "source_revision": "sha256:af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701", "translation_revision": "git:b1b500221dbe5437cfca004d6b04d3f6e422765d;html-sha256:65fda1f1b62a89992b84014c9157e61b67dbe8190e93945826efec668fad038c"}, "body_sha256": "be301e120e3931cfc512792c0da90e9c13a326e13bbd3187fa67574745c9c0ba", "runtime_rerun": false, "authored_translation": "source-derived-structured-summary", "source_facts_revision": "af105fc8e960fc836a09fc2cd7f582b49fd17675d9d36631abe3a565bfd7d701"}, "facts_zh": [{"label": "\u89c6\u56fe", "value": "pg_stat_activity"}, {"label": "\u5b57\u6bb5", "value": "leader_pid"}, 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"sections": [{"title": "\u89c6\u56fe\u8bed\u4e49", "paragraphs": ["pg_stat_activity \u89c6\u56fe\u6bcf\u4e2a\u670d\u52a1\u5668\u8fdb\u7a0b\u5c06\u6709\u4e00\u884c\uff0c\u663e\u793a\u4e0e\u8be5\u8fdb\u7a0b\u5f53\u524d\u6d3b\u52a8\u76f8\u5173\u7684\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 leader_pid FROM pg_catalog.pg_stat_activity;", "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>integer</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><p>\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u67e5\u8be2\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u7684\u8fdb\u7a0b ID\uff1b\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u9886\u5bfc\u8005\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\u7684\u8fdb\u7a0b ID\u3002NULL \u8868\u793a\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u6216\u9886\u5bfc\u8005\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u6216\u8005\u4e0d\u53c2\u4e0e\u4efb\u4f55\u5e76\u884c\u64cd\u4f5c\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": "\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u67e5\u8be2\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u7684\u8fdb\u7a0b 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the parallel group leader if this process is a parallel query worker, or process ID of the leader apply worker if this process is a parallel apply worker. NULL indicates that this process is a parallel group leader or leader apply worker, or does not participate in any parallel operation.", "/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": "No stats_reset field is documented for this view", "/versions/18/related/0/label": "pg_stat_activity 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_activity view will have one row per server process, showing information related to the current activity of that process.", "/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": "d5f5731af6c9afd550a284bf2be7f2333fbbc1b73776ae9e9b790c77852c09e1", "canonical_center_text_hash": "61ecf21e33139bf736d35aa91b1882d901d687931b3a7f5a6f9a3d696d884380"}, "description_zh": "\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u67e5\u8be2\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u7684\u8fdb\u7a0b ID\uff1b\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u9886\u5bfc\u8005\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\u7684\u8fdb\u7a0b ID\u3002NULL \u8868\u793a\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u6216\u9886\u5bfc\u8005\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u6216\u8005\u4e0d\u53c2\u4e0e\u4efb\u4f55\u5e76\u884c\u64cd\u4f5c\u3002", "comparison_data": {"view": "pg_stat_activity", "field": "leader_pid", "sql_type": "integer", "units_mentioned": []}, "comparison_hash": "f89284edc4852ed2535d67bc526c03b7de3fdfbfd87ef7a05ab41ef7a3187ebf", "manual_language": "zh", "units_mentioned": [], "description_zh_html": "<p>pg_stat_activity.leader_pid \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_activity</code></dd><dt>\u5b57\u6bb5</dt><dd><code>leader_pid</code></dd><dt>SQL \u7c7b\u578b</dt><dd><code>integer</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><p>\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u67e5\u8be2\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u7684\u8fdb\u7a0b ID\uff1b\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u9886\u5bfc\u8005\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\u7684\u8fdb\u7a0b ID\u3002NULL \u8868\u793a\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u6216\u9886\u5bfc\u8005\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u6216\u8005\u4e0d\u53c2\u4e0e\u4efb\u4f55\u5e76\u884c\u64cd\u4f5c\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_activity.leader_pid \u7edf\u8ba1\u5b57\u6bb5\u3002</p><dl><dt>\u89c6\u56fe</dt><dd><code>pg_stat_activity</code></dd><dt>\u5b57\u6bb5</dt><dd><code>leader_pid</code></dd><dt>SQL \u7c7b\u578b</dt><dd><code>integer</code></dd></dl><h3>\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u5b9a\u4e49</h3><p>\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u67e5\u8be2\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u7684\u8fdb\u7a0b ID\uff1b\u5982\u679c\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u5219\u4e3a\u9886\u5bfc\u8005\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\u7684\u8fdb\u7a0b ID\u3002NULL \u8868\u793a\u8be5\u8fdb\u7a0b\u662f\u5e76\u884c\u7ec4\u9886\u5bfc\u8005\u6216\u9886\u5bfc\u8005\u5e94\u7528\u5de5\u4f5c\u8fdb\u7a0b\uff0c\u6216\u8005\u4e0d\u53c2\u4e0e\u4efb\u4f55\u5e76\u884c\u64cd\u4f5c\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": "12", "right": "13", "status": "added", "diff": "--- PostgreSQL 12\n+++ PostgreSQL 13\n@@ -1 +1,6 @@\n-\u8be5\u7248\u672a\u6536\u5f55\n+{\n+  \"field\": \"leader_pid\",\n+  \"sql_type\": \"integer\",\n+  \"units_mentioned\": [],\n+  \"view\": \"pg_stat_activity\"\n+}"}}