Re: Need to improve performance

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От Bruce Momjian
Тема Re: Need to improve performance
Дата
Msg-id 200006231806.OAA19976@candle.pha.pa.us
обсуждение исходный текст
Ответ на Re: Need to improve performance  (Vassili A Akimov <vassili@erols.com>)
Список pgsql-general
>
>         Thank you gentelmen! It seems that regexp was the reason! I enabled
> likeplanning and it i=didn't improve the performance until I replaced '~*' with
> 'LIKE'.  Thank you again!

The issue is that ~ and LIKE have similar performance.  ~* is
case-insensitive, and can not used indexes.

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