{"Entry":{"collection":"catalog","key":"pg_statio_all_tables","name":"pg_statio_all_tables","aliases":[],"metadata":{"changed_in":["19"],"changes":[{"added":[],"attributes":[],"description_changed":true,"descriptions":[],"from":"8.0","order":false,"removed":[],"status":"reworded","to":"8.1","types":[]},{"added":[],"attributes":[],"description_changed":false,"descriptions":[],"from":"8.4","order":false,"removed":[],"status":"coverage","to":"9.0","types":[]},{"added":[],"attributes":[],"description_changed":true,"descriptions":[],"from":"9.1","listing":[],"order":false,"removed":[],"status":"reworded","to":"9.2","types":[],"unlisted":[]},{"added":[],"attributes":[],"description_changed":false,"descriptions":[{"from":"Number of buffer hits in this table's TOAST table index (if any)","name":"tidx_blks_hit","to":"Number of buffer hits in this table's TOAST table indexes (if any)"},{"from":"Number of disk blocks read from this table's TOAST table index (if any)","name":"tidx_blks_read","to":"Number of disk blocks read from this table's TOAST table indexes (if any)"}],"from":"9.3","listing":[],"order":false,"removed":[],"status":"reworded","to":"9.4","types":[],"unlisted":[]},{"added":[],"attributes":[],"description_changed":true,"descriptions":[],"from":"12","listing":[],"order":false,"removed":[],"status":"reworded","to":"13","types":[],"unlisted":[]},{"added":["stats_reset"],"attributes":[],"description_changed":false,"descriptions":[],"from":"18","listing":[],"order":false,"removed":[],"status":"changed","to":"19","types":[],"unlisted":[]}],"column_count":12,"content_hash":"d2f311654f50f0f99b9e91631cd22fd223e8e8ee9a79858c48b1b4736b75dbbf","first_version":"7.4","imported_at":"2026-09-30T00:40:56.093255+08:00","kind":"statistics","last_version":"20","name":"pg_statio_all_tables","position":123,"present_in":["7.4","8.0","8.1","8.2","8.3","8.4","9.0","9.1","9.2","9.3","9.4","9.5","9.6","10","11","12","13","14","15","16","17","18","19","20"],"relation_oid":null,"relkind":"v","shared":false,"source_rev":"english-manuals:f2d1199ce3a3db585d48c47ca1c4b6f901810249f2870bb731a755326a6b3823","summary":"The pg_statio_all_tables view will contain one row for each table in the current database (including TOAST tables), showing statistics about I/O on that specific table.","summary_zh":""}},"Definition":{"Collection":"catalog","Key":"pg_statio_all_tables","SourceDatabase":"center","Version":"18","SourceTable":"catalog","SourceKey":"pg_statio_all_tables","SourceRevision":"english-manuals:f2d1199ce3a3db585d48c47ca1c4b6f901810249f2870bb731a755326a6b3823","Facts":{"columns":[{"array_dimensions":0,"attnum":1,"description":"OID of a table","description_zh":"","documented":true,"documented_name":"relid","hidden":false,"name":"relid","not_null":false,"references":"","type":"oid","type_modifier":-1,"type_oid":26},{"array_dimensions":0,"attnum":2,"description":"Name of the schema that this table is in","description_zh":"","documented":true,"documented_name":"schemaname","hidden":false,"name":"schemaname","not_null":false,"references":"","type":"name","type_modifier":-1,"type_oid":19},{"array_dimensions":0,"attnum":3,"description":"Name of this table","description_zh":"","documented":true,"documented_name":"relname","hidden":false,"name":"relname","not_null":false,"references":"","type":"name","type_modifier":-1,"type_oid":19},{"array_dimensions":0,"attnum":4,"description":"Number of disk blocks read from this table","description_zh":"","documented":true,"documented_name":"heap_blks_read","hidden":false,"name":"heap_blks_read","not_null":false,"references":"","type":"bigint","type_modifier":-1,"type_oid":20},{"array_dimensions":0,"attnum":5,"description":"Number of buffer hits in this table","description_zh":"","documented":true,"documented_name":"heap_blks_hit","hidden":false,"name":"heap_blks_hit","not_null":false,"references":"","type":"bigint","type_modifier":-1,"type_oid":20},{"array_dimensions":0,"attnum":6,"description":"Number of disk blocks read from all indexes on this table","description_zh":"","documented":true,"documented_name":"idx_blks_read","hidden":false,"name":"idx_blks_read","not_null":false,"references":"","type":"bigint","type_modifier":-1,"type_oid":20},{"array_dimensions":0,"attnum":7,"description":"Number of buffer hits in all indexes on this table","description_zh":"","documented":true,"documented_name":"idx_blks_hit","hidden":false,"name":"idx_blks_hit","not_null":false,"references":"","type":"bigint","type_modifier":-1,"type_oid":20},{"array_dimensions":0,"attnum":8,"description":"Number of disk blocks read from this table's TOAST table (if any)","description_zh":"","documented":true,"documented_name":"toast_blks_read","hidden":false,"name":"toast_blks_read","not_null":false,"references":"","type":"bigint","type_modifier":-1,"type_oid":20},{"array_dimensions":0,"attnum":9,"description":"Number of buffer hits in this table's TOAST table (if any)","description_zh":"","documented":true,"documented_name":"toast_blks_hit","hidden":false,"name":"toast_blks_hit","not_null":false,"references":"","type":"bigint","type_modifier":-1,"type_oid":20},{"array_dimensions":0,"attnum":10,"description":"Number of disk blocks read from this table's TOAST table indexes (if any)","description_zh":"","documented":true,"documented_name":"tidx_blks_read","hidden":false,"name":"tidx_blks_read","not_null":false,"references":"","type":"bigint","type_modifier":-1,"type_oid":20},{"array_dimensions":0,"attnum":11,"description":"Number of buffer hits in this table's TOAST table indexes (if any)","description_zh":"","documented":true,"documented_name":"tidx_blks_hit","hidden":false,"name":"tidx_blks_hit","not_null":false,"references":"","type":"bigint","type_modifier":-1,"type_oid":20}],"description":"The pg_statio_all_tables view will contain one row for each table in the current database (including TOAST tables), showing statistics about I/O on that specific table. The pg_statio_user_tables and pg_statio_sys_tables views contain the same information, but filtered to only show user and system tables respectively.","description_zh":"","doc":{"anchor":"PG-STATIO-ALL-TABLES-VIEW","file":"monitoring-stats.html","lang":"en","sha256":"aa979eed08627fbf715a9d792094a162a73671db5af810f3ab2aad3e073d5722","slug":"18"},"kind":"statistics","lang":"en","measured_attributes":true,"metadata_release":"18.6","runtime_columns":["relid","schemaname","relname","heap_blks_read","heap_blks_hit","idx_blks_read","idx_blks_hit","toast_blks_read","toast_blks_hit","tidx_blks_read","tidx_blks_hit"],"runtime_verified":false,"source":"english-manual"},"ManualEvidence":{"doc":{"anchor":"PG-STATIO-ALL-TABLES-VIEW","file":"monitoring-stats.html","lang":"en","sha256":"aa979eed08627fbf715a9d792094a162a73671db5af810f3ab2aad3e073d5722","slug":"18"}},"MeasuredEvidence":{"measured_attributes":true,"metadata_release":"18.6","runtime_columns":["relid","schemaname","relname","heap_blks_read","heap_blks_hit","idx_blks_read","idx_blks_hit","toast_blks_read","toast_blks_hit","tidx_blks_read","tidx_blks_hit"],"runtime_verified":false}},"Text":{"Collection":"catalog","Key":"pg_statio_all_tables","SourceDatabase":"pgweb","Version":"18","Locale":"zh-Hans","Title":"pg_statio_all_tables","Summary":"pg_statio_all_tables视图将为当前数据库中的每个表（包括 TOAST 表）包含一行，该行显示指定表上有关 I/O 的统计信息。pg_statio_user_tables和pg_statio_sys_tables视图包含相同的信息，但经过过滤，分别只显示用户表和系统表。","BodyHTML":"\u003cp\u003epg_statio_all_tables视图将为当前数据库中的每个表（包括 TOAST 表）包含一行，该行显示指定表上有关 I/O 的统计信息。pg_statio_user_tables和pg_statio_sys_tables视图包含相同的信息，但经过过滤，分别只显示用户表和系统表。\u003c/p\u003e","SourceRevision":"2026-09-27@419045e","ContentHash":"8c2dbd633ec68648036bc569cf070b4f52d4276de28fa9bcc810ba8f4154afd9","Payload":{"columns":[{"description_zh":"表的OID","name":"relid","type":"oid","zh_from":"doc"},{"description_zh":"该表所在的模式的名称","name":"schemaname","type":"name","zh_from":"doc"},{"description_zh":"这个表的名称","name":"relname","type":"name","zh_from":"doc"},{"description_zh":"从该表中读取的磁盘块的数量","name":"heap_blks_read","type":"bigint","zh_from":"doc"},{"description_zh":"该表中的缓冲区命中数","name":"heap_blks_hit","type":"bigint","zh_from":"doc"},{"description_zh":"从这个表上所有索引读取的磁盘块数","name":"idx_blks_read","type":"bigint","zh_from":"doc"},{"description_zh":"这个表上所有索引中的缓冲区命中数","name":"idx_blks_hit","type":"bigint","zh_from":"doc"},{"description_zh":"从这个表的TOAST表中读取的磁盘块的数量（如果有的话）","name":"toast_blks_read","type":"bigint","zh_from":"doc"},{"description_zh":"这个表的TOAST表中的缓冲区命中数（如果有的话）","name":"toast_blks_hit","type":"bigint","zh_from":"doc"},{"description_zh":"从这个表的TOAST表索引中读取的磁盘块的数量（如果有的话）","name":"tidx_blks_read","type":"bigint","zh_from":"doc"},{"description_zh":"这个表的TOAST表索引中的缓冲区命中数（如果有的话）","name":"tidx_blks_hit","type":"bigint","zh_from":"doc"}],"description_zh":"pg_statio_all_tables视图将为当前数据库中的每个表（包括 TOAST 表）包含一行，该行显示指定表上有关 I/O 的统计信息。pg_statio_user_tables和pg_statio_sys_tables视图包含相同的信息，但经过过滤，分别只显示用户表和系统表。","zh_from":"doc"}},"RequestedLocale":"zh-Hans","Fallback":false,"Versions":["10","11","12","13","14","15","16","17","18","19","20","7.4","8.0","8.1","8.2","8.3","8.4","9.0","9.1","9.2","9.3","9.4","9.5","9.6"],"Locales":["en","zh-Hans"],"Signatures":null,"Spellings":null,"SQLState":null,"Evidence":null}