GLOBAL_SESSION_MEMORY

GLOBAL_SESSION_MEMORY collects statistics about memory usage at the session level on each node in the unit of MB, including all the memory allocated to Postgres and stream threads on DNs for jobs currently executed by users.

Table 1 GLOBAL_SESSION_MEMORY columns

Name	Type	Description
node_name	name	Node name
sessid	text	Thread start time and ID
init_mem	integer	Memory allocated to the currently executed job before the job enters the executor
used_mem	integer	Memory allocated to the currently executed job
peak_mem	integer	Peak memory allocated to the currently executed job