PG_STAT_ALL_TABLES
PG_STAT_ALL_TABLES displays statistics about accesses to tables in the current database, including TOAST tables.
| Column | Type | Description |
|---|---|---|
| relid | OID | Table OID |
| schemaname | Name | Schema name of the table |
| relname | Name | Name of the table |
| seq_scan | Bigint | Number of sequential scans started on the table |
| seq_tup_read | Bigint | Number of rows that have live data fetched by sequential scans |
| idx_scan | Bigint | Number of index scans |
| idx_tup_fetch | Bigint | Number of rows that have live data fetched by index scans |
| n_tup_ins | Bigint | Number of rows inserted |
| n_tup_upd | Bigint | Number of rows updated |
| n_tup_del | Bigint | Number of rows deleted |
| n_tup_hot_upd | Bigint | Number of rows updated by HOT (no separate index update is required) |
| n_live_tup | Bigint | Estimated number of live rows |
| n_dead_tup | Bigint | Estimated number of dead rows |
| last_vacuum | Timestamp with time zone | Last time at which this table was manually vacuumed (excluding VACUUM FULL) |
| last_autovacuum | Timestamp with time zone | Last time at which this table was automatically vacuumed |
| last_analyze | Timestamp with time zone | Last time at which this table was analyzed |
| last_autoanalyze | Timestamp with time zone | Last time at which this table was automatically vacuumed |
| vacuum_count | Bigint | Number of vacuum operations (excluding VACUUM FULL) |
| autovacuum_count | Bigint | Number of autovacuum operations |
| analyze_count | Bigint | Number of ANALYZE operations |
| autoanalyze_count | Bigint | Number of autoanalyze operations |
| last_data_changed | Timestamp with time zone | Last time at which this table was updated (by INSERT/UPDATE/DELETE or EXCHANGE/TRUNCATE/DROP partition). This column is recorded only on the local CN. |
Example
Query the last data change time in the table_test table:
1 2 3 4 5 | SELECT last_data_changed FROM PG_STAT_ALL_TABLES WHERE relname ='table_test'; last_data_changed ------------------------------- 2024-03-27 10:28:16.277136+08 (1 row) |
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