PG_STATIO_ALL_TABLES

PG_STATIO_ALL_TABLES contains I/O statistics for each table (including the TOAST table) in the current database.

Table 1 PG_STATIO_ALL_TABLES columns

Name

Type

Description

relid

oid

Table OID

schemaname

name

Name of the schema that the table is in

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 indexes 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

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