PG_STAT_SYS_TABLES

PG_STAT_SYS_TABLES displays statistics about the system catalogs of all the namespaces in pg_catalog and information_schema schemas. For details about the columns, see Table 1.

**Table 1** PG_STAT_SYS_TABLES columns
Name	Type	Description
relid	oid	OID of the 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. It indicates the number of inactive row pointers in Ustore tables.
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 thread.
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 thread.
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 thread.
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 thread.
last_data_changed	timestamp with time zone	Last modification time of the table data.