Help Center/ GaussDB(DWS)/ Developer Guide/ Standard data warehouse (8.3.0.x)/ GaussDB(DWS) System Catalogs and Views/ System Views/ GS_COLUMN_TABLE_IO_STAT
Updated on 2024-04-30 GMT+08:00
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GS_COLUMN_TABLE_IO_STAT

GS_COLUMN_TABLE_IO_STAT displays the I/O of all column-store tables of the database on the current node. The value of each statistical column is the accumulated value since the instance was started.

Table 1 GS_COLUMN_TABLE_IO_STAT columns

Name

Type

Description

schemaname

name

Namespace of a table

relname

name

Table name

heap_read

bigint

Number of blocks logically read in the heap

heap_hit

bigint

Number of block hits in the heap

idx_read

bigint

Number of blocks logically read in the index

idx_hit

bigint

Number of block hits in the index

cu_read

bigint

Number of logical reads in the Compression Unit

cu_hit

bigint

Number of hits in the Compression Unit

cidx_read

bigint

Number of indexes logically read in the Compression Unit

cidx_hit

bigint

Number of index hits in the Compression Unit
Parent topic: System Views