PGXC_GET_STAT_ALL_PARTITIONS
PGXC_GET_STAT_ALL_PARTITIONS displays information about insertion, update, and deletion operations on partitions of partitioned tables and the dirty page rate of tables.
The statistics of this view depend on the ANALYZE operation. To obtain the most accurate information, perform the ANALYZE operation on the partitioned table first.
Name |
Type |
Description |
---|---|---|
relid |
oid |
Table OID |
partid |
oid |
Partition OID |
schemaname |
name |
Schema name of the table |
relname |
name |
Table name |
partname |
name |
Partition name |
n_tup_ins |
numeric |
Number of inserted tuples |
n_tup_upd |
numeric |
Number of updated tuples |
n_tup_del |
numeric |
Number of deleted tuples |
n_live_tup |
numeric |
Number of live tuples |
n_dead_tup |
numeric |
Number of dead tuples |
page_dirty_rate |
numeric(5,2) |
Dirty page rate (%) of a table |
Examples
Run the following command to query partition tables whose dirty page rate is greater than 30%:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 |
SELECT * FROM PGXC_GET_STAT_ALL_PARTITIONS WHERE dirty_page_rate>30; relid | partid | schemaname | relname | partname | n_tup_ins | n_tup_upd | n_tup_del | n_live_tup | n_dead_tup | dirty_page_rate -------+--------+-----------------+--------------------+----------+-----------+-----------+-----------+------------+------------+----------------- 58320 | 58626 | schema_subquery | store_hash_par | p1 | 2 | 0 | 2 | 0 | 2 | 100.00 58430 | 58706 | schema_subquery | store_hash_par_mor | p4 | 1 | 1 | 1 | 0 | 2 | 100.00 58320 | 58644 | schema_subquery | store_hash_par | p1 | 3 | 0 | 3 | 0 | 3 | 100.00 58430 | 58770 | schema_subquery | store_hash_par_mor | p4 | 1 | 1 | 1 | 0 | 2 | 100.00 58320 | 58643 | schema_subquery | store_hash_par | p1 | 2 | 0 | 2 | 0 | 2 | 100.00 58320 | 58625 | schema_subquery | store_hash_par | p1 | 2 | 0 | 2 | 0 | 2 | 100.00 58320 | 58579 | schema_subquery | store_hash_par | p1 | 2 | 0 | 2 | 0 | 2 | 100.00 58320 | 58619 | schema_subquery | store_hash_par | p1 | 3 | 0 | 3 | 0 | 3 | 100.00 58320 | 58627 | schema_subquery | store_hash_par | p1 | 4 | 0 | 4 | 0 | 4 | 100.00 58320 | 58657 | schema_subquery | store_hash_par | p1 | 3 | 0 | 3 | 0 | 3 | 100.00 (10 rows) |
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