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

postmaster.c

Revise aggregate functions per earlier discussions in pghackers.

2000-07-17 03:05:41 +00:00