pgsql/src/backend/utils/adt (arrayfuncs.c float.c int.c numeric.c timestamp.c)

  Date: Sunday, July 16, 2000 @ 23:05:19
Author: tgl

Update of /home/projects/pgsql/cvsroot/pgsql/src/backend/utils/adt
     from hub.org:/home/projects/pgsql/tmp/cvs-serv25842/src/backend/utils/adt

Modified Files:
    arrayfuncs.c float.c int.c numeric.c timestamp.c

-----------------------------  Log Message  -----------------------------

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...