PG_STAT_SYS_TABLES
PG_STAT_SYS_TABLES displays statistics about the system catalogs of all the namespaces in pg_catalog and information_schema.
Name |
Type |
Description |
---|---|---|
relid |
oid |
OID of a table. |
schemaname |
name |
Schema name of the table. |
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 this table was manually vacuumed (excluding VACUUM FULL). |
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 manually 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 has been manually vacuumed (not counting VACUUM FULL). |
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 modification time of the table data. |
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