PG_STAT_ALL_TABLES
PG_STAT_ALL_TABLES is used to query one row for each table in the current database (including TOAST tables), showing statistics about accesses to that specific table.
Name | Type | Description |
|---|---|---|
relid | oid | OID of a table. |
schemaname | name | Name of the schema that the table is in. |
relname | name | Table name. |
seq_scan | bigint | Number of sequential scans initiated on the table. |
seq_tup_read | bigint | Number of live rows fetched by sequential scans. |
idx_scan | bigint | Number of index scans initiated on the table. |
idx_tup_fetch | bigint | Number of live rows 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 HOT updated (with no separate index update required). |
n_live_tup | bigint | Estimated number of live rows. |
n_dead_tup | bigint | Estimated number of inactive rows. |
last_vacuum | timestamp with time zone | Last time when the table was cleared. |
last_autovacuum | timestamp with time zone | Last time when the table was vacuumed by the AUTOVACUUM daemon. |
last_analyze | timestamp with time zone | Last time when the table was analyzed. |
last_autoanalyze | timestamp with time zone | Last time when the table was analyzed by the AUTOVACUUM daemon. |
vacuum_count | bigint | Number of times the table is cleared. |
autovacuum_count | bigint | Number of times the table has been vacuumed by the autovacuum daemon. |
analyze_count | bigint | Number of times the table has been manually analyzed. |
autoanalyze_count | bigint | Number of times the table has been analyzed by the autovacuum daemon. |
last_data_changed | timestamp with time zone | Last time at which the table was updated (by INSERT/UPDATE/DELETE or EXCHANGE/TRUNCATE/DROP PARTITION). This column is not recorded in the system catalog but is recorded on the local CN. |
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