Updated on 2024-06-03 GMT+08:00

GLOBAL_STATIO_SYS_TABLES

GLOBAL_STATIO_SYS_TABLES displays I/O status information about all system catalogs in namespaces on each node, as described in Table 1.

Table 1 GLOBAL_STATIO_SYS_TABLES columns

Name

Type

Description

node_name

name

Node name

relid

oid

Table OID

schemaname

name

Name of the schema that contains the table

relname

name

Table name

heap_blks_read

bigint

Number of disk blocks read from the table

heap_blks_hit

bigint

Number of cache hits in the table

idx_blks_read

bigint

Number of disk blocks read from all indexes in the table

idx_blks_hit

bigint

Number of cache hits in the table

toast_blks_read

bigint

Number of disk blocks read from the TOAST table (if any) in the table

toast_blks_hit

bigint

Number of buffer hits in the TOAST table (if any) in the table

tidx_blks_read

bigint

Number of disk blocks read from the TOAST table index (if any) in the table

tidx_blks_hit

bigint

Number of buffer-hits in the TOAST table index (if any) in the table