pgsql-server/src/backend/optimizer/plan create ...

Started by Tom Laneover 23 years ago1 messagescomitters
Jump to latest
#1Tom Lane
tgl@sss.pgh.pa.us

CVSROOT: /cvsroot
Module name: pgsql-server
Changes by: tgl@postgresql.org 03/01/12 19:29:26

Modified files:
src/backend/optimizer/plan: createplan.c planner.c subselect.c

Log message:
Cause planner to account for evaluation costs in targetlists and
HAVING quals. Normally this is an insignificant effect --- but it
will not be insignificant when these clauses contain sub-selects.
The added costs cannot affect the planning of the query containing
them, but they might have an impact when the query is a sub-query
of a larger one.