Re: Re: [COMMITTERS] pgsql: Fix mapping of PostgreSQL encodings to Python encodings.

From: Jan Urbański <wulczer(at)wulczer(dot)org>
To: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
Cc: Peter Eisentraut <peter_e(at)gmx(dot)net>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PostgreSQL-development <pgsql-hackers(at)postgreSQL(dot)org>, Asif Naeem <asif(dot)naeem(at)enterprisedb(dot)com>
Subject: Re: Re: [COMMITTERS] pgsql: Fix mapping of PostgreSQL encodings to Python encodings.
Date: 2012-08-09 09:55:00
Message-ID: 502388F4.5070503@wulczer.org
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On 06/08/12 13:59, Heikki Linnakangas wrote:
> On 20.07.2012 10:13, Jan Urbański wrote:
>> On 20/07/12 08:59, Jan Urbański wrote:
>>> On 18/07/12 17:17, Heikki Linnakangas wrote:
>>>> On 14.07.2012 17:50, Jan Urbański wrote:
>>>>
>>>> If pg_do_encoding_conversion() throws an error, you don't get a chance
>>>> to call Py_DECREF() to release the string. Is that a problem?
>>>>
>>>> If an error occurs in PLy_traceback(), after incrementing
>>>> recursion_depth, you don't get a chance to decrement it again. I'm not
>>>> sure if the Py* function calls can fail, but at least seemingly trivial
>>>> things like initStringInfo() can throw an out-of-memory error.
>>>
>>> Of course you're right (on both accounts).
>>>
>>> Here's a version with a bunch of PG_TRies thrown in.
>>
>> Silly me, playing tricks with postincrements before fully waking up.
>>
>> Here's v3, with a correct inequality test for exceeding the traceback
>> recursion test.
>
> Committed the convert-via-UTF-8 part of this. I'll take a closer look at
> the recursion check next.

Thanks!

Jan

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