{"id":183,"date":"2024-10-30T18:42:16","date_gmt":"2024-10-30T10:42:16","guid":{"rendered":"https:\/\/zhoujibin.com\/?p=183"},"modified":"2025-03-10T11:09:59","modified_gmt":"2025-03-10T03:09:59","slug":"pg%e6%9f%a5%e7%9c%8b%e6%af%8f%e4%b8%aa%e8%a1%a8%e6%89%80%e5%8d%a0%e7%94%a8%e7%a3%81%e7%9b%98%e7%a9%ba%e9%97%b4%e5%a4%a7%e5%b0%8f","status":"publish","type":"post","link":"https:\/\/zhoujibin.com\/?p=183","title":{"rendered":"PG\u6269\u5c55\u67e5\u8be2SQL"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">PG\u67e5\u770b\u6bcf\u4e2a\u8868\u6240\u5360\u7528\u78c1\u76d8\u7a7a\u95f4\u5927\u5c0f<\/h1>\n\n\n\n<p>\u53c2\u8003\u8fde\u63a5\uff1ahttps:\/\/blog.csdn.net\/yueludanfeng\/article\/details\/86487585<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-- \u65b9\u6cd51\nselect\n    table_full_name,\n    round( CAST ( size as numeric ) \/ 1024 \/ 1024 \/ 1024, 2 ) || 'G' size \nfrom\n    (\n    SELECT\n        table_schema || '.' || table_name AS table_full_name,\n        pg_total_relation_size ( '\"' || table_schema || '\".\"' || table_name || '\"' ) AS size \n    FROM\n        information_schema.tables \n    ORDER BY\n    pg_total_relation_size ( '\"' || table_schema || '\".\"' || table_name || '\"' ) DESC \n    ) t\n\n-- \u65b9\u6cd52\nSELECT\n    schemaname,\n    relname,\n    round( CAST ( pg_total_relation_size ( relid ) as numeric ) \/ 1024 \/ 1024 \/ 1024, 2 ) || 'G' as table_size,\n    n_live_tup \nFROM\n    pg_stat_user_tables \nwhere 1 = 1\n    and schemaname = 'rf_supervision' \n  and relname like  't_user%'\n    ORDER BY pg_total_relation_size ( relid ) desc<\/code><\/pre>\n\n\n\n<h1 class=\"wp-block-heading\">PG\u67e5\u8be2\u8868\u8bb0\u5f55\u6570<\/h1>\n\n\n\n<pre class=\"wp-block-code\"><code>select\n    relname as TABLE_NAME,\n    reltuples,\n    to_char(reltuples, 'FM99999999') as rowCounts \nfrom\n    pg_class \nwhere\n    relkind = 'r' \n    and relnamespace = ( select oid from pg_namespace where nspname = 's_system' ) \n    --and relname = 't_user'\norder by\n    reltuples desc;\n;<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>PG\u67e5\u770b\u6bcf\u4e2a\u8868\u6240\u5360\u7528\u78c1\u76d8\u7a7a\u95f4\u5927\u5c0f \u53c2\u8003\u8fde\u63a5\uff1ahttps:\/\/blog.csdn.net\/yueludanfen [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[28,26],"class_list":["post-183","post","type-post","status-publish","format-standard","hentry","category-database","tag-pg","tag-sql"],"_links":{"self":[{"href":"https:\/\/zhoujibin.com\/index.php?rest_route=\/wp\/v2\/posts\/183"}],"collection":[{"href":"https:\/\/zhoujibin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zhoujibin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zhoujibin.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zhoujibin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=183"}],"version-history":[{"count":3,"href":"https:\/\/zhoujibin.com\/index.php?rest_route=\/wp\/v2\/posts\/183\/revisions"}],"predecessor-version":[{"id":229,"href":"https:\/\/zhoujibin.com\/index.php?rest_route=\/wp\/v2\/posts\/183\/revisions\/229"}],"wp:attachment":[{"href":"https:\/\/zhoujibin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=183"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zhoujibin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=183"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zhoujibin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=183"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}