Thread: pgsql-server/src/backend/executor nodeAgg.c

pgsql-server/src/backend/executor nodeAgg.c

From
tgl@postgresql.org (Tom Lane)
Date:
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.