postgresql/src/backend/tcop
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
..
Makefile Generated header files parse.h and fmgroids.h are now copied into 2000-05-29 05:45:56 +00:00
dest.c Remove long-dead support for invoking queries from dynamically loaded 2000-07-08 03:04:41 +00:00
fastpath.c TOAST 2000-07-03 23:10:14 +00:00
postgres.c Revise aggregate functions per earlier discussions in pghackers. 2000-07-17 03:05:41 +00:00
pquery.c Revise aggregate functions per earlier discussions in pghackers. 2000-07-17 03:05:41 +00:00
utility.c Bugfix in ALTER TABLE CREATE TOAST TABLE 2000-07-05 12:45:31 +00:00