[postgis-devel] RE: [BUGS] BUG #4567: Clustering on GIST INDEX clobbers records in table intermittently

[Paul Ramsey]

Yes, that patch removes the bug.

P.

On Sun, Dec 7, 2008 at 11:51 PM, Obe, Regina <robe.dnd at cityofboston.gov> wrote:
> "Regina Obe" <robe.dnd at 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.
>
> Paul,
> 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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