GS_STATIO_ALL_PARTITIONS
GS_STATIO_ALL_PARTITIONS contains I/O statistics about each partition in a partitioned table of the current database. The information can be queried by using the gs_statio_get_all_partitions_stats() function.
| Name | Type | Description |
|---|---|---|
| partition_oid | oid | Specifies a partition OID. |
| schemaname | name | Specifies the name of a partition schema. |
| relname | name | Specifies the name of a table where the partition is located. |
| partition_name | name | Specifies the name of a level-1 partition to which the partition belongs. |
| sub_partition_name | name | Specifies the name of a level-2 partition to which the partition belongs. The distributed system does not support level-2 partitions. Set this parameter to NULL. |
| heap_blks_read | bigint | Specifies the number of disk blocks read from the partition. |
| heap_blks_hit | bigint | Specifies the number of cache hits in the partition. |
| idx_blks_read | bigint | Specifies the number of disk blocks read from indexes in the partition. |
| idx_blks_hit | bigint | Specifies the number of cache hits in indexes in the partition. |
| toast_blks_read | bigint | Specifies the number of disk blocks read from the TOAST table partition (if any) in the partition. |
| toast_blks_hit | bigint | Specifies the number of buffer hits in the TOAST table partition (if any) in the partition. |
| tidx_blks_read | bigint | Specifies the number of disk blocks read from the TOAST table partitioned index (if any) in the partition. |
| tidx_blks_hit | bigint | Specifies the number of buffer hits in the TOAST table partitioned index (if any) in the partition. |
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