Updated on 2024-06-03 GMT+08:00

GLOBAL_STAT_USER_TABLES

Displays the status of user-defined ordinary tables in all schemas on each node. It is used on CNs. The status information about user-defined ordinary tables on each DN is displayed but not summed up, as described in Table 1.

Table 1 GLOBAL_STAT_USER_TABLES columns

Name

Type

Description

node_name

name

Node name.

relid

oid

OID of a table.

schemaname

name

Name of the schema where the table is located.

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 HOT updated rows (that is, the number of rows whose index columns are not updated).

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 at which the 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 at which 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 that the table has been manually vacuumed (excluding VACUUM FULL).

autovacuum_count

bigint

Number of times that the table has been vacuumed by the autovacuum daemon.

analyze_count

bigint

Number of times that the table has been manually analyzed.

autoanalyze_count

bigint

Number of times that the table has been analyzed by the autovacuum daemon thread.