GLOBAL_TABLE_STAT
GLOBAL_TABLE_STAT displays statistics about all tables (excluding foreign tables) in the current database. The values of live_tuples and dead_tuples are real-time values, and the values of other statistical columns are accumulated values since the instance was started.
Name |
Type |
Description |
---|---|---|
schemaname |
name |
Namespace of a table |
relname |
name |
Table name |
distribute_mode |
char |
Distribution mode of a table. The meaning of this column is the same as that of the pclocatortype column in the pgxc_class system catalog. |
seq_scan |
bigint |
Number of sequential scans. It is counted only for row-store tables. For a partitioned table, the sum of the number of scans of each partition is displayed. |
seq_tuple_read |
bigint |
Number of rows scanned in sequence. It is counted only for row-store tables. |
index_scan |
bigint |
Number of index scans. It is counted only for row-store tables. |
index_tuple_read |
bigint |
Number of rows scanned by the index. It is counted only for row-store tables. |
tuple_inserted |
bigint |
Number of rows inserted. For a replication table, the maximum value of each node is displayed. For a distribution table, the sum of all nodes is displayed. |
tuple_updated |
bigint |
Number of rows updated. For a replication table, the maximum value of each node is displayed. For a distribution table, the sum of all nodes is displayed. |
tuple_deleted |
bigint |
Number of rows deleted. For a replication table, the maximum value of each node is displayed. For a distribution table, the sum of all nodes is displayed. |
tuple_hot_updated |
bigint |
Number of rows with HOT updates. For a replication table, the maximum value of each node is displayed. For a distribution table, the sum of all nodes is displayed. |
live_tuples |
bigint |
Number of live tuples. The maximum value of each node is displayed. For a distribution table, the sum of all nodes is displayed. This indicator applies only to row-store tables. |
dead_tuples |
bigint |
Number of dead tuples. The maximum value of each node is displayed. For a distribution table, the sum of all nodes is displayed. This indicator applies only to row-store tables. |
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