| From: | jwieck(at)debis(dot)com (Jan Wieck) |
|---|---|
| To: | jwieck(at)debis(dot)com |
| Cc: | maillist(at)candle(dot)pha(dot)pa(dot)us, tgl(at)sss(dot)pgh(dot)pa(dot)us, pgsql-hackers(at)postgreSQL(dot)org |
| Subject: | Re: [HACKERS] More on GROUP BY |
| Date: | 1999-05-12 15:16:11 |
| Message-ID: | m10hajz-000EBaC@orion.SAPserv.Hamburg.dsh.de |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
I wrote:
> I'll go ahead now in little steps.
>
> 1. Get rid of the TLE copy in GroupClause.
Done. GroupClause now identifies the TLE by a number which is
placed into the Resdom by parser/rewriter.
New initdb required because of modifications in node
print/read functions.
>
> 2. Move the targetlist expansion into the rule system.
Not required anymore AFAICS. Instead I modified the
targetlist preprocessing in the planner so that junk
attributes used by group clauses get added again to the
expanded list.
Jan
--
#======================================================================#
# It's easier to get forgiveness for being wrong than for being right. #
# Let's break this rule - forgive me. #
#======================================== jwieck(at)debis(dot)com (Jan Wieck) #
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Ross J. Reedstrom | 1999-05-12 15:19:45 | Re: [HACKERS] Date/Time Flaw in pg_dump ? |
| Previous Message | Tom Lane | 1999-05-12 15:13:10 | Re: [HACKERS] backend dies suddenly after a lot of error messages |