gp_segments_for_planner

gp_segments_for_planner

Sets the number of primary segment instances for the legacy query optimizer (planner) to assume in its cost and size estimates. If 0, then the value used is the actual number of primary segments. This variable affects the legacy optimizer's estimates of the number of rows handled by each sending and receiving process in Motion operators.

Value Range Default Set Classifications
0-n 0 master

session

reload