| From: | Tom Lane <tgl> |
|---|---|
| To: | pgsql-committers(at)postgresql(dot)org |
| Subject: | pgsql/doc/src/sgml (catalogs.sgml xaggr.sgml) |
| Date: | 2000-07-17 03:04:41 |
| Message-ID: | 200007170304.e6H34fM25865@hub.org |
| Views: | Whole Thread | Raw Message | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-committers |
Date: Sunday, July 16, 2000 @ 23:04:40
Author: tgl
Update of /home/projects/pgsql/cvsroot/pgsql/doc/src/sgml
from hub.org:/home/projects/pgsql/tmp/cvs-serv25842/doc/src/sgml
Modified Files:
catalogs.sgml xaggr.sgml
----------------------------- 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...
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Tom Lane | 2000-07-17 03:04:43 | pgsql/doc/src/sgml/ref (create_aggregate.sgml drop_aggregate.sgml) |
| Previous Message | Tom Lane | 2000-07-17 02:22:51 | pgsql/src/pl/tcl/test (runtest test_mklang.sql) |