GLOBAL_REL_IOSTAT

Obtains statistics about data file I/Os on all nodes in the cluster, as described in Table 1.

**Table 1** GLOBAL_REL_IOSTAT columns
Name	Type	Description
node_name	name	Node name.
phyrds	bigint	Number of times of reading physical files.
phywrts	bigint	Number of times of writing into physical files.
phyblkrd	bigint	Number of times of reading physical file blocks.
phyblkwrt	bigint	Number of times of writing into physical file blocks.
dbid	oid	In the distributed database, the value is always 0.

Parent topic: File

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