Re: memory leaks? using savepoint

From: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Tatsuhito Kasahara <kasahara(dot)tatsuhito(at)oss(dot)ntt(dot)co(dot)jp>, pgsql-bugs(at)postgresql(dot)org
Subject: Re: memory leaks? using savepoint
Date: 2010-12-22 07:58:29
Message-ID: AANLkTi=UHnYVzaJLR+Uqwr_kvttD2jaAHhCWJOn_P0nf@mail.gmail.com
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On Wed, Dec 22, 2010 at 3:24 PM, Fujii Masao <masao(dot)fujii(at)gmail(dot)com> wrote:
> On Wed, Dec 22, 2010 at 11:48 AM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> Fujii Masao <masao(dot)fujii(at)gmail(dot)com> writes:
>>> The proposed patch looks very simple. I don't think that applying that
>>> patch will cause serious risk.
>>
>> Maybe so, maybe not, but *it won't get tested* to any meaningful degree
>> if it's applied.
>
> Umm.. I don't have good idea about this. Spend a lot time on the review?

The proposed patch changes only CopySnapshot in exec_simple_query.
But exec_bind_message seems to have the same problem. It calls
CopySnapshot on PortalHeapMemory, but calls FreeSnapshot on
MessageContext. Am I missing something?

Regards,

--
Fujii Masao
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center

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