{"Entry":{"collection":"metric","key":"pg_statio_all_tables-toast_blks_read","name":"pg_statio_all_tables.toast_blks_read","aliases":["toast_blks_read","pg_statio_all_tables"],"metadata":{"aliases":["toast_blks_read","pg_statio_all_tables"],"category":"pg_statio_all_tables","content_hash":"c2bfa007f8354b2cd5477e642d0e790f2020601a3dd2fdfd286ff61599f87fd8","imported_at":"2026-09-30T00:40:46.853678+08:00","name":"pg_statio_all_tables.toast_blks_read","name_zh":"","slug":"pg_statio_all_tables-toast_blks_read","summary":"Number of disk blocks read from this table's TOAST table (if any)"}},"Definition":{"Collection":"metric","Key":"pg_statio_all_tables-toast_blks_read","SourceDatabase":"center","Version":"18","SourceTable":"statistics_metric","SourceKey":"pg_statio_all_tables-toast_blks_read","SourceRevision":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f","Facts":{"comparison_data":{"field":"toast_blks_read","sql_type":"bigint","units_mentioned":["blocks"],"view":"pg_statio_all_tables"},"comparison_hash":"e10f4e9cc840ae2cd0f9ee9394212db21c6608cb82bd308212a68e5216d640a3","description":["Number of disk blocks read from this table's TOAST table (if any)"],"documented":true,"facts":[{"label":"View","value":"pg_statio_all_tables"},{"label":"Field","value":"toast_blks_read"},{"label":"SQL type","value":"bigint"},{"label":"Units named in the field definition","value":"blocks"},{"label":"Reset observation","value":"No stats_reset field is documented for this view"}],"field":"toast_blks_read","manual_html":"","manual_path":"/docs/18/monitoring-stats.html","related":[{"label":"pg_statio_all_tables columns","url":"/wiki/catalog/pg_statio_all_tables/?v=18"},{"label":"Statistics collection and reset functions","url":"/docs/18/monitoring-stats.html"}],"release":{"channel":"stable","label":"18.6","major":"18","ref":"https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2","revision":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"},"sections":[{"paragraphs":["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."],"title":"View semantics"},{"paragraphs":["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."],"title":"Collection and reset context"},{"code":"SELECT toast_blks_read FROM pg_catalog.pg_statio_all_tables;","paragraphs":["Example query; no execution result or measured value is asserted."],"title":"Inspect this field"}],"signature":"SELECT toast_blks_read FROM pg_catalog.pg_statio_all_tables;","source_only":false,"sources":[{"label":"PostgreSQL 18 English manual","path":"monitoring-stats.html","sha256":"aa979eed08627fbf715a9d792094a162a73671db5af810f3ab2aad3e073d5722","url":"/docs/18/monitoring-stats.html#PG-STATIO-ALL-TABLES-VIEW"}],"sql_type":"bigint","tables":[],"units_mentioned":["blocks"],"view":"pg_statio_all_tables"},"ManualEvidence":{"manual_path":"/docs/18/monitoring-stats.html","release":{"channel":"stable","label":"18.6","major":"18","ref":"https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2","revision":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"},"sources":[{"label":"PostgreSQL 18 English manual","path":"monitoring-stats.html","sha256":"aa979eed08627fbf715a9d792094a162a73671db5af810f3ab2aad3e073d5722","url":"/docs/18/monitoring-stats.html#PG-STATIO-ALL-TABLES-VIEW"}]},"MeasuredEvidence":{}},"Text":{"Collection":"metric","Key":"pg_statio_all_tables-toast_blks_read","SourceDatabase":"center","Version":"18","Locale":"en","Title":"pg_statio_all_tables.toast_blks_read","Summary":"Number of disk blocks read from this table's TOAST table (if any)","BodyHTML":"\u003cp\u003eNumber of disk blocks read from this table\u0026#39;s TOAST table (if any)\u003c/p\u003e","SourceRevision":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f","ContentHash":"00c58070107bc930d20926e5e2cf9ba795dbfac1b74dbbb3526fdd6b4a33f6ff","Payload":{"description":["Number of disk blocks read from this table's TOAST table (if any)"],"manual_html":"","related":[{"label":"pg_statio_all_tables columns","url":"/wiki/catalog/pg_statio_all_tables/?v=18"},{"label":"Statistics collection and reset functions","url":"/docs/18/monitoring-stats.html"}],"sections":[{"paragraphs":["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."],"title":"View semantics"},{"paragraphs":["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."],"title":"Collection and reset context"},{"code":"SELECT toast_blks_read FROM pg_catalog.pg_statio_all_tables;","paragraphs":["Example query; no execution result or measured value is asserted."],"title":"Inspect this field"}],"tables":[]}},"RequestedLocale":"zh-Hans","Fallback":true,"Versions":["10","11","12","13","14","15","16","17","18","19","20"],"Locales":["en"],"Signatures":null,"Spellings":null,"SQLState":null,"Evidence":null}