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.

**Table 1** GS_STATIO_ALL_PARTITIONS columns
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.