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От | Dmitry Popov |
---|---|
Тема | Search |
Дата | |
Msg-id | 37A2B096.75EB7EF8@auricvision.com обсуждение исходный текст |
Ответы |
Re: [GENERAL] Search
|
Список | pgsql-general |
Greetings, I store text data in windows-1251 encoding in my pgSQL database and when I execute SQL command like SELECT title, firstname, lastname, description FROM stuff WHERE title LIKE '%<keyword>%' AND firtsname LIKE '%<keyword>%' AND lastname LIKE '%<keyword>%' AND description LIKE '%<keyword>%' the response comes really quick, but if I want case independent search, I should convert, using my own PHP3 function, both search field and keyword to low case just becouse PostgreSQL by itself doesn't know how to convert characters in windows-1251 encoding to low case. And response time grows from 0:07 to 1:10! Is there any solution? May be stored procedures (that doesn't require to recompile pgSQL)? Thank you in advance!!! P.S.: as far as I know there is no locale for windows-1251 and, unfortunately, I can't store data in koi8-r whose locale present in almost all UNIX'es. Mentioned above function: function lower($str) { $length = strlen($str); for ($i = 0; $i < $length; ++$i) { $sym = ord($str[$i]); if (($sym > 34 && $sym < 60) || ($sym > 191 && $sym < 224)) $str[$i] = chr($sym + 32); } return $str; } -- BEST WISHES, Dmitry Webmaster, DeltaCube Studio http://www.deltacube.com/
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