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
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Makefile	Generated header files parse.h and fmgroids.h are now copied into	2000-05-29 05:45:56 +00:00
postmaster.c	Revise aggregate functions per earlier discussions in pghackers.	2000-07-17 03:05:41 +00:00