SUMMARY_STATIO_SYS_TABLES

SUMMARY_STATIO_SYS_TABLES displays I/O status information about all system catalogs in namespaces in openGauss.

Table 1 SUMMARY_STATIO_SYS_TABLES columns

Name

Type

Description

schemaname

name

Name of the schema that contains the table

relname

name

Table name

heap_blks_read

numeric

Number of disk blocks read from the table

heap_blks_hit

numeric

Number of cache hits in the table

idx_blks_read

numeric

Number of disk blocks read from all indexes in the table

idx_blks_hit

numeric

Number of cache hits in the table

toast_blks_read

numeric

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

toast_blks_hit

numeric

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

tidx_blks_read

numeric

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

tidx_blks_hit

numeric

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

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    openGauss 2024-04-22 00:47:24
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