Re: PATCH: decreasing memory needlessly consumed by array_agg - Mailing list pgsql-hackers

From Ali Akbar
Subject Re: PATCH: decreasing memory needlessly consumed by array_agg
Date
Msg-id CACQjQLoXsr7TjwmQ1p8M5h-MjKWPOX-7tfrH7NaUtU6ojWiFDA@mail.gmail.com
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In response to Re: PATCH: decreasing memory needlessly consumed by array_agg  (Tomas Vondra <tv@fuzzy.cz>)
Responses Re: PATCH: decreasing memory needlessly consumed by array_agg  (Ali Akbar <the.apaan@gmail.com>)
List pgsql-hackers
2014-12-16 6:27 GMT+07:00 Tomas Vondra <tv@fuzzy.cz>:
On 15.12.2014 22:35, Jeff Janes wrote:
> On Sat, Nov 29, 2014 at 8:57 AM, Tomas Vondra <tv@fuzzy.cz
> <mailto:tv@fuzzy.cz>> wrote:
>
>     Hi,
>
>     Attached is v2 of the patch lowering array_agg memory requirements.
>     Hopefully it addresses the issues issues mentioned by TL in this thread
>     (not handling some of the callers appropriately etc.).
>
>
> Hi Tomas,
>
> When configured --with-libxml I get compilation errors:
>
> xml.c: In function 'xml_xpathobjtoxmlarray':
> xml.c:3684: error: too few arguments to function 'accumArrayResult'
> xml.c:3721: error: too few arguments to function 'accumArrayResult'
> xml.c: In function 'xpath':
> xml.c:3933: error: too few arguments to function 'initArrayResult'
> xml.c:3936: error: too few arguments to function 'makeArrayResult'
>
> And when configured --with-perl, I get:
>
> plperl.c: In function 'array_to_datum_internal':
> plperl.c:1196: error: too few arguments to function 'accumArrayResult'
> plperl.c: In function 'plperl_array_to_datum':
> plperl.c:1223: error: too few arguments to function 'initArrayResult'
>
> Cheers,

Thanks, attached is a version that fixes this.

Just fast-viewing the patch.

The patch is not implementing the checking for not creating new context in initArrayResultArr. I think we should implement it also there for consistency (and preventing future problems).

Regards,
--
Ali Akbar

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