| From: | Gaetano Mendola <mendola(at)bigfoot(dot)com> |
|---|---|
| To: | "pgsql-bugs(at)postgresql(dot)org" <pgsql-bugs(at)postgresql(dot)org> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Subject: | Re: PANIC: can't juggle and compress too |
| Date: | 2003-10-29 23:58:24 |
| Message-ID: | 3FA05420.3070301@bigfoot.com |
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| Lists: | pgsql-bugs |
Tom Lane wrote:
> Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes:
>
>>Dror Matalon <dror(at)zapatec(dot)com> writes:
>>
>>>Oct 28 01:04:50 ... postgres[7572]: [52227-1] PANIC: can't juggle and compress too
>
>
>>>What does the error message mean?
>
>
>>It's an unimplemented case in FSM memory management. I thought that
>>it was a can't-happen case; either I was wrong and it does need to be
>>implemented, or there's a bug elsewhere that's triggering the failure
>>condition.
>
>
> I've concluded that that case does need to be handled; I think it can
> arise in situations where a relation's allocated share of FSM space
> decreases due to roundoff error. Fix committed accordingly.
Less dangerous then this:
http://mathworld.wolfram.com/RoundoffError.html
:-O
Regards
Gaetano Mendola
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