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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2000-07-17 03:05:41 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2000-07-17 03:05:41 +0000 |
| commit | bec98a31c55a4f799b398d01541e68d7c086bb81 (patch) | |
| tree | 14924bb5da2bc0a0f9bfac1aa5b32256fd996b9c /src/backend/nodes/copyfuncs.c | |
| parent | 139f19c30221968e7d3bf64fe303cb41517e4601 (diff) | |
| download | postgresql-bec98a31c55a4f799b398d01541e68d7c086bb81.tar.gz postgresql-bec98a31c55a4f799b398d01541e68d7c086bb81.zip | |
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...
Diffstat (limited to 'src/backend/nodes/copyfuncs.c')
| -rw-r--r-- | src/backend/nodes/copyfuncs.c | 3 |
1 files changed, 1 insertions, 2 deletions
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 */ |