PG_GTT_RELSTATS

PG_GTT_RELSTATS displays basic information about all global temporary tables of the current session by invoking pg_get_gtt_relstats.

Table 1 PG_GTT_RELSTATS columns

Name	Type	Description
schemaname	name	Schema name
tablename	name	Name of a global temporary table
relfilenode	oid	ID of a file object
relpages	integer	Number of disk pages of a global temporary table
reltuples	real	Number of records in a global temporary table
relallvisible	integer	Number of pages that are marked as all visible
relfrozenxid	xid	All transaction IDs before this one have been replaced with a permanent (frozen) transaction ID in the table.
relminmxid	xid	Reserved