From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
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To: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: like/ilike improvements |
Date: | 2007-05-23 16:07:10 |
Message-ID: | 21418.1179936430@sss.pgh.pa.us |
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Lists: | pgsql-hackers pgsql-patches |
Andrew Dunstan <andrew(at)dunslane(dot)net> writes:
> I am also wondering if it might be sensible to make this choice once at
> backend startup and store a function pointer, instead of doing it for
> every string processed by like/ilike:
> if (pg_database_encoding_max_length() == 1)
> return SB_MatchText(s, slen, p, plen);
> else if (GetDatabaseEncoding() == PG_UTF8)
> return UTF8_MatchText(s, slen, p, plen);
> else
> return MB_MatchText(s, slen, p, plen);
> I guess that might make matters harder if we ever got per-column encodings.
Yeah. It's not saving much anyway ... I wouldn't bother.
regards, tom lane
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