pg_stat_all_tables
The pg_stat_all_tables view shows one row for each table in the current database (including TOAST tables) to display statistics about accesses to that specific table.
The pg_stat_user_tables and pg_stat_sys_table views contain the same information, but filtered to only show user and system tables respectively.
| Column | Type | Description |
|---|---|---|
relid |
oid | OID of a table |
schemaname |
name | Name of the schema that this table is in |
relname |
name | Name of this table |
seq_scan |
bigint | Total number of sequential scans initiated on this table from all segment instances |
seq_tup_read |
bigint | Number of live rows fetched by sequential scans |
idx_scan |
bigint | Total number of index scans initiated on this table from all segment instances |
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 (includes HOT updated rows) |
n_tup_del |
bigint | Number of rows deleted |
n_tup_hot_upd |
bigint | Number of rows HOT updated (i.e., with no separate index update required) |
n_live_tup |
bigint | Estimated number of live rows |
n_dead_tup |
bigint | Estimated number of dead rows |
n_mod_since_analyze |
bigint | Estimated number of rows modified since this table was last analyzed |
last_vacuum |
timestamp with time zone | Last time this table was manually vacuumed (not counting VACUUM FULL) |
last_autovacuum |
timestamp with time zone | Last time this table was vacuumed by the autovacuum daemon1 |
last_analyze |
timestamp with time zone | Last time this table was manually analyzed |
last_autoanalyze |
timestamp with time zone | Last time this table was analyzed by the autovacuum daemon1 |
vacuum_count |
bigint | Number of times this table has been manually vacuumed (not counting VACUUM FULL) |
autovacuum_count |
bigint | Number of times this table has been vacuumed by the autovacuum daemon1 |
analyze_count |
bigint | Number of times this table has been manually analyzed |
autoanalyze_count |
bigint | Number of times this table has been analyzed by the autovacuum daemon 1 |
Note 1In LightDB-A Database, the autovacuum daemon is deactivated and not supported for user defined databases.
Parent topic: System Catalogs Definitions