Wiki / Statistics & Metrics / pg_statio_user_tables
pg_statio_user_tables.toast_blks_read
Number of disk blocks read from this table's TOAST table (if any)
Reading PostgreSQL 18.6.
Description
Number of disk blocks read from this table's TOAST table (if any)
- View
- pg_statio_user_tables
- Field
- toast_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 toast_blks_read FROM pg_catalog.pg_statio_user_tables;View semantics
Same as pg_statio_all_tables, except that only user tables are shown.
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 toast_blks_read FROM pg_catalog.pg_statio_user_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_user_tables.heap_blks_hitpg_statio_user_tables.heap_blks_readpg_statio_user_tables.idx_blks_hitpg_statio_user_tables.idx_blks_readpg_statio_user_tables.relidpg_statio_user_tables.relnamepg_statio_user_tables.schemanamepg_statio_user_tables.tidx_blks_hitpg_statio_user_tables.tidx_blks_readpg_statio_user_tables.toast_blks_hit
Export JSON · Back to Statistics & Metrics · Recorded in PostgreSQL 10 through 20; the first sample is not necessarily its introduction.