Lu, Huayi
a24ca60074
Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com> Co-authored-by: Lu, Huayi <luhuayi@huawei.com> Co-committed-by: Lu, Huayi <luhuayi@huawei.com>
8.6 KiB
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 |