Updated on 2024-05-07 GMT+08:00

SUMMARY_STAT_USER_TABLES

Displays the sum of the status information about user-defined ordinary tables in all schemas of a cluster. It is used on the CN. The status information about user-defined common tables on each DN is summed up. The timestamp column is not summed up and only the latest value of this column on all nodes is used.

Table 1 SUMMARY_STAT_USER_TABLES columns

Name

Type

Description

schemaname

name

Name of the schema where the table is located.

relname

name

Table name

seq_scan

numeric

Number of sequential scans initiated on the table

seq_tup_read

numeric

Number of live rows fetched by sequential scans

idx_scan

numeric

Number of index scans initiated on the table

idx_tup_fetch

numeric

Number of live rows fetched by index scans

n_tup_ins

numeric

Number of rows inserted

n_tup_upd

numeric

Number of rows updated

n_tup_del

numeric

Number of rows deleted

n_tup_hot_upd

numeric

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

n_live_tup

numeric

Estimated number of live rows

n_dead_tup

numeric

Estimated number of inactive rows.

last_vacuum

timestamp with time zone

Last time at which this table was manually vacuumed (not counting 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 this table was manually analyzed

last_autoanalyze

timestamp with time zone

Last time when the table was analyzed by the autovacuum daemon thread.

vacuum_count

numeric

Number of times this table has been manually vacuumed (not counting VACUUM FULL)

autovacuum_count

numeric

Number of times this table has been vacuumed by the autovacuum daemon

analyze_count

numeric

Number of times this table has been manually analyzed

autoanalyze_count

numeric

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