Re: BUG #4567: Clustering on GIST INDEX clobbers records in table intermittently - Mailing list pgsql-bugs

From Obe, Regina
Subject Re: BUG #4567: Clustering on GIST INDEX clobbers records in table intermittently
Date
Msg-id 53F9CF533E1AA14EA1F8C5C08ABC08D204D7F07A@ZDND.DND.boston.cob
Whole thread Raw
In response to BUG #4567: Clustering on GIST INDEX clobbers records in table intermittently  ("Regina Obe" <robe.dnd@cityofboston.gov>)
Responses Re: [postgis-devel] RE: BUG #4567: Clustering on GIST INDEX clobbers records in table intermittently  ("Paul Ramsey" <pramsey@cleverelephant.ca>)
List pgsql-bugs
"Regina Obe" <robe.dnd@cityofboston.gov> writes:
> Description:        Clustering on GIST INDEX clobbers records in table
> intermittently

> This doesn't always happen to me but does intermittently, and for others =
it
> happens all the time.

> I wonder whether this is fixed by this recent patch:
> http://archives.postgresql.org/pgsql-committers/2008-12/msg00053.php

> The pre-patch behavior would've depended on the value of a
> never-initialized struct field, so the erratic behavior is explained
> by varying contents of memory.  I'm unable to make it happen in an
> assert-enabled build, but that's probably because the initial contents
> of a palloc'd chunk are never zeroes in such a build.

>            regards, tom lane

Tom,

Thanks for the quick response on this.=20=20

Paul,=20
You think by chance you can test out the patch since you can make this bug =
happen consistently on your build.

Thanks,
Regina





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