Re: BUG #1931: ILIKE and LIKE fails on Turkish locale

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Devrim GUNDUZ <devrim(at)gunduz(dot)org>, pgsql-bugs(at)postgresql(dot)org
Subject: Re: BUG #1931: ILIKE and LIKE fails on Turkish locale
Date: 2006-06-14 21:40:05
Message-ID: 200606142140.k5ELe5f27589@candle.pha.pa.us
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Thanks, both done.

---------------------------------------------------------------------------

Tom Lane wrote:
> Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> > Tom Lane wrote:
> >> So yeah, ILIKE looks just about completely broken for multibyte encodings.
>
> > Did we make any progress on this? If so, I can't find it.
>
> No, nobody submitted a patch AFAIR. There should be a TODO item for
> this:
>
> * fix ILIKE and regular expressions to handle case insensitivity
> properly in multibyte encodings
>
> BTW, while looking to see if TODO had anything about this, I noted
> the following items that shouldn't be there anymore --- they are
> done and pushed out:
>
> o Add new version of PQescapeString() that doesn't double backslashes
> that are part of a client-only multibyte sequence
>
> Single-quote is not a valid byte in any supported client-only
> encoding. This requires using mblen() to determine if the
> backslash is inside or outside a multi-byte sequence.
>
> o Add new version of PQescapeString() that doesn't double
> backslashes when standard_conforming_strings is true and
> non-E strings are used
>
>
>
> regards, tom lane
>
> ---------------------------(end of broadcast)---------------------------
> TIP 6: explain analyze is your friend
>

--
Bruce Momjian http://candle.pha.pa.us
EnterpriseDB http://www.enterprisedb.com

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