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postgresql/src/backend/executor
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Tom Lane bec98a31c5 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...
 		2000-07-17 03:05:41 +00:00
..
_deadcode Add: 2000-01-26 05:58:53 +00:00
Makefile Generated header files parse.h and fmgroids.h are now copied into 2000-05-29 05:45:56 +00:00
execAmi.c First stage of reclaiming memory in executor by resetting short-term 2000-07-12 02:37:39 +00:00
execFlatten.c Add: 2000-01-26 05:58:53 +00:00
execJunk.c Add: 2000-01-26 05:58:53 +00:00
execMain.c First stage of reclaiming memory in executor by resetting short-term 2000-07-12 02:37:39 +00:00
execProcnode.c Add: 2000-01-26 05:58:53 +00:00
execQual.c Revise aggregate functions per earlier discussions in pghackers. 2000-07-17 03:05:41 +00:00
execScan.c Revise aggregate functions per earlier discussions in pghackers. 2000-07-17 03:05:41 +00:00
execTuples.c First stage of reclaiming memory in executor by resetting short-term 2000-07-12 02:37:39 +00:00
execUtils.c Cleanup of code for creating index entries. Functional indexes with 2000-07-14 22:18:02 +00:00
functions.c First stage of reclaiming memory in executor by resetting short-term 2000-07-12 02:37:39 +00:00
nodeAgg.c Revise aggregate functions per earlier discussions in pghackers. 2000-07-17 03:05:41 +00:00
nodeAppend.c First stage of reclaiming memory in executor by resetting short-term 2000-07-12 02:37:39 +00:00
nodeGroup.c First stage of reclaiming memory in executor by resetting short-term 2000-07-12 02:37:39 +00:00
nodeHash.c Revise aggregate functions per earlier discussions in pghackers. 2000-07-17 03:05:41 +00:00
nodeHashjoin.c Revise aggregate functions per earlier discussions in pghackers. 2000-07-17 03:05:41 +00:00
nodeIndexscan.c First stage of reclaiming memory in executor by resetting short-term 2000-07-12 02:37:39 +00:00
nodeMaterial.c First stage of reclaiming memory in executor by resetting short-term 2000-07-12 02:37:39 +00:00
nodeMergejoin.c First stage of reclaiming memory in executor by resetting short-term 2000-07-12 02:37:39 +00:00
nodeNestloop.c Revise aggregate functions per earlier discussions in pghackers. 2000-07-17 03:05:41 +00:00
nodeResult.c Revise aggregate functions per earlier discussions in pghackers. 2000-07-17 03:05:41 +00:00
nodeSeqscan.c First stage of reclaiming memory in executor by resetting short-term 2000-07-12 02:37:39 +00:00
nodeSort.c First stage of reclaiming memory in executor by resetting short-term 2000-07-12 02:37:39 +00:00
nodeSubplan.c First stage of reclaiming memory in executor by resetting short-term 2000-07-12 02:37:39 +00:00
nodeTidscan.c First stage of reclaiming memory in executor by resetting short-term 2000-07-12 02:37:39 +00:00
nodeUnique.c First stage of reclaiming memory in executor by resetting short-term 2000-07-12 02:37:39 +00:00
spi.c First phase of memory management rewrite (see backend/utils/mmgr/README 2000-06-28 03:33:33 +00:00