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.
Column | 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. 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. |
index_scan | Bigint | Number of index scans. |
index_tuple_read | Bigint | Number of rows scanned by the index. |
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. |