PGXC_TABLE_STAT
PGXC_TABLE_STAT provides statistics of all tables of the database on all CNs and DNs in the cluster. Except the nodename column of the name type added in front of each row, the names, types, and sequences of other columns are the same as those in the GS_TABLE_STAT view.
Column |
Type |
Description |
---|---|---|
nodename |
name |
Node name. |
schemaname |
name |
Table namespace. |
relname |
name |
Table name. |
seq_scan |
bigint |
Number of sequential scans. Only row-store tables are counted. 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. Only row-store tables are counted. |
index_scan |
bigint |
Number of index scans. Only row-store tables are counted. |
index_tuple_read |
bigint |
Number of rows scanned by the index. Only row-store tables are counted. |
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. |
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