From: Daniel Kalchev <daniel@digsys.bg>
To: Bruce Momjian <maillist@candle.pha.pa.us>
Cc: pgsql-hackers@postgresql.org
Subject: Re: [HACKERS] Postgres 6.5 beta2 and beta3 problem
Date: Wed, 09 Jun 1999 16:53:19 +0300
Message-ID: <199906091353.QAA19490@dcave.digsys.bg> (raw)
Further to my cyrillic charset (--enable-locale) introduced woes, I would like
to add, that when recompiling Postgres 6.5 without --enable-locale now the
query runs reasonably fast and explain gives:
Index Scan using w_k_words_i on words (cost=1112.13 rows=1 width=12)
instead of
Index Scan using w_k_words_i on words (cost=3335.38 rows=1 width=12)
The problem as it seems is that the restrictions to use indexes when locale is
enabled are not consistently applied - explain shows that indices will be
used, and the behavior with indexes and without indexes is different (with
indexes it's noticeably slower :-) so indexes are apparently being used...
Apparently (for my current tests at least) the Bulgarian cyrillic
(windows-1251) is handled reasonably well without locale support - untill now
~* didn't work anyway.
Daniel Kalchev
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To: pgsql-hackers@postgresql.org
Cc: daniel@digsys.bg, maillist@candle.pha.pa.us
Subject: Re: [HACKERS] Postgres 6.5 beta2 and beta3 problem
In-Reply-To: <199906091353.QAA19490@dcave.digsys.bg>
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