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["\u4e0d\u6839\u636e\u6b64\u8868\u8fbe\u5f0f\u63a8\u65ad\u5404\u5b57\u6bb5\u7684\u5b9a\u4e49\u3001\u5b9e\u9645 SQL \u7c7b\u578b\u3001\u5355\u4f4d\u6216\u91cd\u7f6e\u89c4\u5219\u3002"]}, {"code": "CREATE VIEW pg_stat_xact_all_tables AS\nSELECT\n C.oid AS relid,\n N.nspname AS schemaname,\n C.relname AS relname,\n pg_stat_get_xact_numscans(C.oid) AS seq_scan,\n pg_stat_get_xact_tuples_returned(C.oid) AS seq_tup_read,\n sum(pg_stat_get_xact_numscans(I.indexrelid))::bigint AS idx_scan,\n sum(pg_stat_get_xact_tuples_fetched(I.indexrelid))::bigint +\n pg_stat_get_xact_tuples_fetched(C.oid) AS idx_tup_fetch,\n pg_stat_get_xact_tuples_inserted(C.oid) AS n_tup_ins,\n pg_stat_get_xact_tuples_updated(C.oid) AS n_tup_upd,\n pg_stat_get_xact_tuples_deleted(C.oid) AS n_tup_del,\n pg_stat_get_xact_tuples_hot_updated(C.oid) AS n_tup_hot_upd,\n pg_stat_get_xact_tuples_newpage_updated(C.oid) AS n_tup_newpage_upd\n FROM pg_class C LEFT JOIN\n pg_index I ON C.oid = I.indrelid\n LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)\n WHERE C.relkind IN ('r', 't', 'm', 'p')\n GROUP BY C.oid, N.nspname, C.relname;", "title": "\u6e90\u7801\u4e2d\u7684\u5b8c\u6574\u89c6\u56fe\u5b9a\u4e49", "paragraphs": []}], "description_zh": "pg_stat_xact_all_tables.schemaname \u7edf\u8ba1\u5b57\u6bb5\u3002", "description_zh_html": "pg_stat_xact_all_tables.schemaname \u7edf\u8ba1\u5b57\u6bb5\u3002
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The same-version manual describes this view but does not enumerate this column; the exact SQL expression is retained below.", "/versions/18/facts/0/label": "View", "/versions/18/facts/1/label": "Field", "/versions/18/facts/2/label": "Field evidence", "/versions/18/facts/2/value": "Source declaration; not individually enumerated by the manual", "/versions/18/facts/3/label": "Expression declared in", "/versions/18/related/0/label": "pg_stat_xact_all_tables columns", "/versions/18/sections/0/title": "View semantics", "/versions/18/sections/1/title": "Collection and transaction context", "/versions/18/sections/2/title": "Exact source expression", "/versions/18/sections/3/title": "Complete source view definition", "/versions/18/sections/0/paragraphs/0": "Similar to pg_stat_all_tables, but counts actions taken so far within the current transaction (which are not yet included in pg_stat_all_tables and related views). The columns for numbers of live and dead rows and vacuum and analyze actions are not present in this view.", "/versions/18/sections/1/paragraphs/0": "A transaction can also see its own statistics (not yet flushed out to the shared memory statistics) in the views pg_stat_xact_all_tables , pg_stat_xact_sys_tables , pg_stat_xact_user_tables , and pg_stat_xact_user_functions . 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