pgsql-server/src/backend/executor nodeAgg.c
Started by Tom Laneover 23 years ago1 messagescomitters
CVSROOT: /cvsroot
Module name: pgsql-server
Changes by: tgl@postgresql.org 03/02/03 19:48:23
Modified files:
src/backend/executor: nodeAgg.c
Log message:
Detect duplicate aggregate calls and evaluate only one copy. This
speeds up some useful real-world cases like
SELECT x, COUNT(*) FROM t GROUP BY x HAVING COUNT(*) > 100.