Re: Really strange foreign key constraint problem blocking delete

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От Jim Nasby
Тема Re: Really strange foreign key constraint problem blocking delete
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Msg-id 5433146C.6010302@BlueTreble.com
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Ответ на Re: Really strange foreign key constraint problem blocking delete  (Andy Colson <andy@squeakycode.net>)
Ответы Re: Really strange foreign key constraint problem blocking delete  (Tim Mickelson <tim_mickelson@bigfoot.com>)
Список pgsql-general
On 10/5/14, 10:06 AM, Andy Colson wrote:
> On 10/05/2014 10:00 AM, Adrian Klaver wrote:
>> On 10/05/2014 07:37 AM, Tim Mickelson wrote:
>>> Sorry about that, the precise version is:  "PostgreSQL 9.1.9 on
>>> x86_64-unknown-linux-gnu, compiled by gcc (GCC) 4.4.7 20120313 (Red Hat
>>> 4.4.7-3), 64-bit"
>>
>> Well 9.1 is at .14 now, so on general principles it would be a good idea to upgrade. That being said I do not see
anythingin the release notes from .10 to .14 that applies. Though to be truthful I did not read every line. Before
upgradingyou could try what Andy suggested which is to REINDEX(tmpautenticazione). See here for the REINDEX caveats,
anda way to INDEX CONCURRENTLY: 
>>
>> http://www.postgresql.org/docs/9.1/interactive/sql-reindex.html
>>
>>>
>>>
>
> I thought .11 sounded like a good candidate.  Especially the part:
>
> allowing tuples to escape freezing, causing those rows to become invisible once 2^31 transactions have elapsed
Those rows should then be invisible to the FK checks as well, so I don't think that's it.

My guess is also on a corrupted index. A quick test would be to disable index scans and try the delete again (use
EXPLAINANALYZE to make sure the delete is using a sequential scan). If that doesn't work, post EXPLAIN ANALYZE output
forthe commands you're running that generate this error. 

--
Jim Nasby, Data Architect, Blue Treble
Data in Trouble? Get it in Treble! http://BlueTreble.com



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