List:General Discussion« Previous MessageNext Message »
From:Reindl Harald Date:March 19 2014 2:22pm
Subject:Re: Precedence in WHERE clauses.
View as plain text  
Am 19.03.2014 15:05, schrieb Morgan Tocker:
> When a MySQL server receives a query, it goes through a process called query
> optimization 
> and tries to determine the best way to execute it (based on availability of indexes
> etc)
>
> The order of the WHERE clause does not matter

that is simply not true

otherwise that documentation would not exist
http://dev.mysql.com/doc/refman/5.5/en/multiple-column-indexes.html


Attachment: [application/pgp-signature] OpenPGP digital signature signature.asc
Thread
Precedence in WHERE clauses.Christophe18 Mar 2014
  • Re: Precedence in WHERE clauses.Michael Dykman18 Mar 2014
    • Re: Precedence in WHERE clauses.Christophe20 Mar 2014
      • Re: Precedence in WHERE clauses.Roy Lyseng20 Mar 2014
  • Re: Precedence in WHERE clauses.Glyn Astill19 Mar 2014
  • Re: Precedence in WHERE clauses.Morgan Tocker19 Mar 2014
    • Re: Precedence in WHERE clauses.Reindl Harald19 Mar 2014
      • Re: Precedence in WHERE clauses.Morgan Tocker19 Mar 2014
        • Re: Precedence in WHERE clauses.Reindl Harald19 Mar 2014
          • Re: Precedence in WHERE clauses.Morgan Tocker19 Mar 2014
            • Re: Precedence in WHERE clauses.Christophe20 Mar 2014
              • Re: Precedence in WHERE clauses.Christophe23 Mar 2014
                • Re: Precedence in WHERE clauses.shawn l.green25 Mar 2014
    • Re: Precedence in WHERE clauses.Mogens Melander19 Mar 2014
      • Re: Precedence in WHERE clauses.shawn l.green20 Mar 2014