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Re: how to optimise query for 10+ millions records
Posted by: irek kordirko
Date: February 13, 2012 02:18PM

Hi Azhar,

Questions are:
- are tables out_route and in_route indexed by 'value' column ?
- is there a constraint "NOT NULL" on the 'value' column in these tables ?
If no, then change the structure of these tables:
alter IGNORE table out_route add constraint PRIMARY KEY ( value ) ;
alter IGNORE table in_route add constraint PRIMARY KEY ( value ) ;

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Re: how to optimise query for 10+ millions records
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February 13, 2012 02:18PM


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