PG_STATIO_SYS_TABLES
PG_STATIO_SYS_TABLES displays the I/O status information about all the system catalogs in the namespace.
Name |
Type |
Description |
---|---|---|
relid |
oid |
Table OID |
schemaname |
name |
Schema name of the table |
relname |
name |
Table name |
heap_blks_read |
bigint |
Number of disk blocks read from this table |
heap_blks_hit |
bigint |
Number of buffer hits in this table |
idx_blks_read |
bigint |
Number of disk blocks read from all indexes in this table |
idx_blks_hit |
bigint |
Number of buffer hits in all indexes on this table |
toast_blks_read |
bigint |
Number of disk blocks read from the TOAST table (if any) in this table |
toast_blks_hit |
bigint |
Number of buffer hits in the TOAST table (if any) in this table |
tidx_blks_read |
bigint |
Number of disk blocks read from the TOAST table index (if any) in this table |
tidx_blks_hit |
bigint |
Number of buffer hits in the TOAST table index (if any) in this table |
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