| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us> |
| Cc: | PostgreSQL-development <hackers(at)postgreSQL(dot)org> |
| Subject: | Re: [HACKERS] query dumping core |
| Date: | 1999-05-02 05:42:31 |
| Message-ID: | 13008.925623751@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us> writes:
> Here it is. I think Tom mentioned this problem.
> select date_trunc('month',transdate), sum(quantity) from wolf group by
> 1 order by 1
> pqReadData() -- backend closed the channel unexpectedly.
Yeah, this is another one of the GROUP-BY-nontrivial-expression
problems. I'm on it. It looks like the HAVING patch broke the
interaction between union_planner() and make_groupPlan().
I'm trying to restructure that code in a way that's more
intelligible, as well as correct...
regards, tom lane
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