Re: Strange (?) Index behavior?
От
Rod Taylor
Тема
Re: Strange (?) Index behavior?
Дата
Msg-id
1099667258.1647.827.camel@home
Ответ на
Strange (?) Index behavior? (Allen Landsidel)
Список
Дерево обсуждения
Strange (?) Index behavior? Allen Landsidel <alandsidel@gmail.com>
Re: Strange (?) Index behavior? "Matt Clark" <matt@ymogen.net>
Re: Strange (?) Index behavior? Rod Taylor <pg@rbt.ca>
Re: Strange (?) Index behavior? Allen Landsidel <alandsidel@gmail.com>
Re: Strange (?) Index behavior? Allen Landsidel <alandsidel@gmail.com>
Re: Strange (?) Index behavior? Bruno Wolff III <bruno@wolff.to>
Re: Strange (?) Index behavior? Allen Landsidel <alandsidel@gmail.com>
Re: Strange (?) Index behavior? "Matt Clark" <matt@ymogen.net>
Re: Strange (?) Index behavior? Allen Landsidel <alandsidel@gmail.com>
Re: Strange (?) Index behavior? Matt Clark <matt@ymogen.net>
Re: Strange (?) Index behavior? Tom Lane <tgl@sss.pgh.pa.us>
Re: Strange (?) Index behavior? Allen Landsidel <alandsidel@gmail.com>
Re: Strange (?) Index behavior? Allen Landsidel <alandsidel@gmail.com>
Re: Strange (?) Index behavior? Josh Berkus <josh@agliodbs.com>
Re: Strange (?) Index behavior? Allen Landsidel <alandsidel@gmail.com>
Re: Strange (?) Index behavior? Greg Stark <gsstark@mit.edu>
Re: Strange (?) Index behavior? Allen Landsidel <alandsidel@gmail.com>
Re: Strange (?) Index behavior? Tom Lane <tgl@sss.pgh.pa.us>
Re: Strange (?) Index behavior? Allen Landsidel <alandsidel@gmail.com>
Re: Strange (?) Index behavior? Tom Lane <tgl@sss.pgh.pa.us>
Re: Strange (?) Index behavior? Allen Landsidel <alandsidel@gmail.com>
Re: Strange (?) Index behavior? Allen Landsidel <alandsidel@gmail.com>
Re: Strange (?) Index behavior? "Joshua D. Drake" <jd@commandprompt.com>
Re: Strange (?) Index behavior? Tom Lane <tgl@sss.pgh.pa.us>
Re: Strange (?) Index behavior? Allen Landsidel <alandsidel@gmail.com>
Re: Strange (?) Index behavior? Tom Lane <tgl@sss.pgh.pa.us>
> It seems to me that a query saying "SELECT column FROM table WHERE > column LIKE 'AA%';" should be just as fast or very close to the first > case up above. However, explain tells me that this query is not using > the index above, which is what's not making sense to me. It looks for an exact expression match, and doesn't know about values which are equal. You can provide both clauses. WHERE column LIKE 'A%' and column LIKE 'AA%';
В списке pgsql-performance по дате отправления
