GS_STAT_ALL_PARTITIONS
GS_STAT_ALL_PARTITIONS contains information about each partition in all partitioned tables in the current database. Each partition occupies one row, showing the access statistics of the partition. The information can be queried by using the gs_stat_get_all_partitions_stats() function.
Name |
Type |
Description |
---|---|---|
partition_oid |
oid |
Partition OID. |
schemaname |
name |
Schema name of a table where the partition is located. |
relname |
name |
Name of the table where the partition is located. |
partition_name |
name |
Name of the level-1 partition to which the partition belongs. |
sub_partition_name |
name |
Name of the level-2 partition to which the partition belongs. The distributed system does not support level-2 partitions. Set this parameter to NULL. |
seq_scan |
bigint |
Number of sequential scans initiated by the partition. |
seq_tup_read |
bigint |
Number of live rows fetched by sequential scans. |
idx_scan |
bigint |
Number of index scans initiated by the partition. |
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 rows HOT updated (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 |
Time when the partition was last cleared. |
last_autovacuum |
timestamp with time zone |
Time when the partition was last cleared by the autovacuum daemon thread. |
last_analyze |
timestamp with time zone |
Time when the partition was last analyzed. |
last_autoanalyze |
timestamp with time zone |
Time when the partition was last analyzed by the autovacuum daemon thread. |
vacuum_count |
bigint |
Number of times that the partition is cleared. |
autovacuum_count |
bigint |
Number of times that the partition is cleared by the autovacuum daemon thread. |
analyze_count |
bigint |
Number of times that the partition is analyzed. |
autoanalyze_count |
bigint |
Number of times that the partition is analyzed by the autovacuum daemon thread. |
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