PostgreSQL 19 ← 18
← Catalog atlas / pg_statio_all_indexes
STATISTICS VIEW · Statistics view
pg_statio_all_indexes
The pg_statio_all_indexes view will contain one row for each index in the current database, showing statistics about I/O on that specific index. The pg_statio_user_indexes and pg_statio_sys_indexes views contain the same information, but filtered to only show user and system indexes respectively.
Checked column by column against a PostgreSQL 18.6 instance · Raw measurement record ↗
Columns PostgreSQL 18
pg_statio_all_indexesPostgreSQL 19 beta 3 is a preview snapshot; the structure can still change before release.
| COLUMN | TYPE | DESCRIPTION |
|---|---|---|
relid |
oid |
OID of the table for this index |
indexrelid |
oid |
OID of this index |
schemaname |
name |
Name of the schema this index is in |
relname |
name |
Name of the table for this index |
indexrelname |
name |
Name of this index |
idx_blks_read |
bigint |
Number of disk blocks read from this index |
idx_blks_hit |
bigint |
Number of buffer hits in this index |
Columns marked "implicit" are not included in SELECT *; some early statistics views are completed from same-version source, and the extra provenance is shown in the column description.
Common system columns 0
System attributes PostgreSQL provides, normally not expanded by SELECT *. Kept separately so they are not mixed in with ordinary columns.
| Columns | Type | attnum |
|---|
Column evolution matrix
Hover a cell for the column typePresentAdded / type or attribute changeRemoved
| COLUMN | 9.0 | 9.1 | 9.2 | 9.3 | 9.4 | 9.5 | 9.6 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
relid |
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indexrelid |
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schemaname |
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relname |
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indexrelname |
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idx_blks_read |
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idx_blks_hit |
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stats_reset |
– | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
9.0 is the coverage baseline; a column already present in the baseline is not marked as added. The matrix aligns columns by name, so a rename appears as the old column removed and a new column added.
Evolution timeline
Changes between adjacent majorsPostgreSQL 13 ← 12
PostgreSQL 12 ← 11
PostgreSQL 10 ← 9.6
PostgreSQL 9.6 ← 9.5
PostgreSQL 9.5 ← 9.4
PostgreSQL 9.4 ← 9.3
PostgreSQL 9.2 ← 9.1
Compare any two versions
Pick two versions to see added, removed, and retyped columns. The interactive comparison needs JavaScript; the evolution timeline reads fine without it.