On 04/04/2004 21:48 Troels Arvin wrote:
Hello,
In the init-script contained in the RPMs downloadable from the PostgreSQL site (I checked the one for Fedora), an explicit locale is set before running initdb. - And the explicit locale is not "C".
This means that a PostgreSQL installation will not use indexes for LIKE queries (I just ran into this). See http://www.postgresql.org/docs/faqs/FAQ.html#4.8
No. It says that [normal] indexes won't be used for:
select foo from bar where col like '%abc';
or
select foo from bar where col like '%abc%';or ILIKE is used. And even then you can use a functional index of the form
CREATE INDEX tabindex ON tab (lower(col));
I suggest that the init-script be rewritten so that LANG and LC_ALL are unset before initdb is run (which happens the first time PostgreSQL is started after the RPM-based installation).
I'll admit that I don't know what effect this would have but I'm interested to find out.
regards
--
Paul Thomas
+------------------------------+---------------------------------------------+
| Thomas Micro Systems Limited | Software Solutions for Business |
| Computer Consultants | http://www.thomas-micro-systems-ltd.co.uk |
+------------------------------+---------------------------------------------+
---------------------------(end of broadcast)--------------------------- TIP 2: you can get off all lists at once with the unregister command (send "unregister YourEmailAddressHere" to [EMAIL PROTECTED])
