Help Center/ GaussDB/ Distributed_3.x/ Schemas/ DBE_PERF Schema/ Object/ SUMMARY_STAT_USER_TABLES

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

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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.