Wiki / Statistics & Metrics / pg_statio_all_tables
pg_statio_all_tables.tidx_blks_read
Number of disk blocks read from this table's TOAST table indexes (if any)
Reading PostgreSQL 18.6.
Description
Number of disk blocks read from this table's TOAST table indexes (if any)
- View
- pg_statio_all_tables
- Field
- tidx_blks_read
- SQL type
- bigint
- Units named in the field definition
- blocks
- Reset observation
- No stats_reset field is documented for this view
Usage
SELECT tidx_blks_read FROM pg_catalog.pg_statio_all_tables;View semantics
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.
Collection and reset context
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.
Inspect this field
Example query; no execution result or measured value is asserted.
SELECT tidx_blks_read FROM pg_catalog.pg_statio_all_tables;Related entries
Documentation and source
Source build
- Version
- 18.6
- Build
- https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2
- Source fingerprint
555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f
Compare versions
PostgreSQL 17 → 18: unchanged.
Compares recorded interfaces and attributes. Source fingerprints and build metadata are excluded; an absent sample is not proof of the introduction or removal release.
Related entries
pg_statio_all_tables.heap_blks_hitpg_statio_all_tables.heap_blks_readpg_statio_all_tables.idx_blks_hitpg_statio_all_tables.idx_blks_readpg_statio_all_tables.relidpg_statio_all_tables.relnamepg_statio_all_tables.schemanamepg_statio_all_tables.tidx_blks_hitpg_statio_all_tables.toast_blks_hitpg_statio_all_tables.toast_blks_read
Export JSON · Back to Statistics & Metrics · Recorded in PostgreSQL 10 through 20; the first sample is not necessarily its introduction.