Re: defining Your own sort order for already compiled PostgreSQL (because PSQL sort orders are incopatible with ASCII sort order for non -alpha characters)
От
Craig Servin
Тема
Re: defining Your own sort order for already compiled PostgreSQL (because PSQL sort orders are incopatible with ASCII sort order for non -alpha characters)
Can you clarify this for me? Does this mean that if we are using UTF-8 as the
encoding a like clause will not use the index unless we specify
varchar_pattern_ops as the index operator class?
Craig
On Tuesday 23 May 2006 03:14, Hakan Kocaman wrote:
> Hi,
>
> i think this explains, what you ment:
> http://www.linuxshare.ru/postgresql/manual/creating-cluster.html
> http://www.linuxshare.ru/postgresql/manual/charset.html#LOCALE
>
> So you don't need to set the Locale-Settings on compile-time,
> but on initdb-time.
>
> Also check if this applies to your kinds of query, because with
> a non-C Locale you need to define the indices with a different operator-
> class to use the indices with like-comparisons.
> See
> http://www.postgresql.org/docs/8.1/static/indexes-opclass.html
> for more details.
>
> Best regards
>
> Hakan Kocaman
> Software-Development
>
> digame.de GmbH
> Richard-Byrd-Str. 4-8
> 50829 Köln
>
> Tel.: +49 (0) 221 59 68 88 31
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> Email: hakan.kocaman@digame.de