From: | Jan Urbański <wulczer(at)wulczer(dot)org> |
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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: | 2012-07-13 11:38:07 |
Message-ID: | 5000089F.1090304@wulczer.org |
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Lists: | pgsql-committers pgsql-hackers |
On 12/07/12 11:08, Heikki Linnakangas wrote:
> On 07.07.2012 00:12, Jan Urbański wrote:
>> On 06/07/12 22:47, Peter Eisentraut wrote:
>>> On fre, 2012-07-06 at 18:53 +0300, Heikki Linnakangas wrote:
>>>>> What shall we do about those? Ignore them? Document that if you're
>>>>> sing
>>>>> one of these encodings then PL/Python with Python 2 will be crippled
>>>>> and
>>>>> with Python 3 just won't work?
>>>>
>>>> We could convert to UTF-8, and use the PostgreSQL functions to convert
>>>> from UTF-8 to the server encoding. Double conversion might be slow, but
>>>> I think it would be better than failing.
>>>
>>> Actually, we already do the other direction that way
>>> (PLyUnicode_FromStringAndSize) , so maybe it would be more consistent to
>>> always use this.
>>>
>>> I would hesitate to use this as a kind of fallback, because then we
>>> would sometimes be using PostgreSQL's recoding tables and sometimes
>>> Python's recoding tables, which could became confusing.
>>
>> So you're in favour of doing unicode -> bytes by encoding with UTF-8 and
>> then using the server's encoding functions?
>
> Sounds reasonable to me. The extra conversion between UTF-8 and UCS-2
> should be quite fast, and it would be good to be consistent in the way
> we do conversions in both directions.
>
I'll implement that than (sorry for not following up on that eariler).
J
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