SUMMARY_STAT_SYS_TABLES
Displays the status statistics of all system catalogs in the pg_catalog, information_schema, and pg_toast schemas in the cluster. The statistics are used on CNs and include data on CNs and DNs. The status information in the system catalog on each node is summed up. The timestamp column is not summed up and only the latest value of this column on all nodes is used.
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. |
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