GS_TABLE_STAT¶
GS_TABLE_STAT displays statistics about all tables (excluding foreign tables) of the database on the current node. 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 |
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. |
tuple_updated | bigint | Number of rows updated. |
tuple_deleted | bigint | Number of rows deleted. |
tuple_hot_updated | bigint | Number of rows with HOT updates. |
live_tuples | bigint | Number of live tuples. Query the view on the CN. If ANALYZE is executed, the total number of live tuples in the table is displayed. Otherwise, 0 is displayed. This indicator applies only to row-store tables. |
dead_tuples | bigint | Number of dead tuples. Query the view on the CN. If ANALYZE is executed, the total number of dead tuples in the table is displayed. Otherwise, 0 is displayed. This indicator applies only to row-store tables. |