Updated at: 2022-08-03 GMT+08:00

PG_STAT_SYS_TABLES

PG_STAT_SYS_TABLES displays the statistics about the system catalogs of all the namespaces in pg_catalog and information_schema schemas.

Table 1 PG_STAT_SYS_TABLES columns

Name

Type

Description

relid

oid

Table OID

schemaname

name

Schema name of the table

relname

name

Table name

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 HOT updated (that is, with no separate index update 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 analyzed

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

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