From bec98a31c55a4f799b398d01541e68d7c086bb81 Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Mon, 17 Jul 2000 03:05:41 +0000 Subject: Revise aggregate functions per earlier discussions in pghackers. There's now only one transition value and transition function. NULL handling in aggregates is a lot cleaner. Also, use Numeric accumulators instead of integer accumulators for sum/avg on integer datatypes --- this avoids overflow at the cost of being a little slower. Implement VARIANCE() and STDDEV() aggregates in the standard backend. Also, enable new LIKE selectivity estimators by default. Unrelated change, but as long as I had to force initdb anyway... --- src/backend/nodes/copyfuncs.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'src/backend/nodes/copyfuncs.c') diff --git a/src/backend/nodes/copyfuncs.c b/src/backend/nodes/copyfuncs.c index bc305382dfe..4013a0f77b2 100644 --- a/src/backend/nodes/copyfuncs.c +++ b/src/backend/nodes/copyfuncs.c @@ -19,7 +19,7 @@ * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.116 2000/07/12 02:37:04 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.117 2000/07/17 03:04:58 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -843,7 +843,6 @@ _copyAggref(Aggref *from) newnode->basetype = from->basetype; newnode->aggtype = from->aggtype; Node_Copy(from, newnode, target); - newnode->usenulls = from->usenulls; newnode->aggstar = from->aggstar; newnode->aggdistinct = from->aggdistinct; newnode->aggno = from->aggno; /* probably not needed */ -- cgit v1.2.3