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Re: Index Not being used.
Posted by: Peter Brawley ()
Date: May 26, 2016 03:53PM

Left Join requires that the engine read all rows on the left side; the analyser decided it's simpler to bypass the index.

With an inner join, an index on ord_id, ord_date may help; play with the column order.



Edited 1 time(s). Last edit at 05/26/2016 03:53PM by Peter Brawley.

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Subject Views Written By Posted
Index Not being used. 630 Greg Mundt 05/26/2016 02:29PM
Re: Index Not being used. 329 Peter Brawley 05/26/2016 03:53PM
Re: Index Not being used. 348 Øystein Grøvlen 05/27/2016 12:45AM
Re: Index Not being used. 314 Greg Mundt 05/27/2016 07:05AM
Re: Index Not being used. 311 Rick James 05/27/2016 11:29PM
Re: Index Not being used. 310 Greg Mundt 05/31/2016 07:04AM
Re: Index Not being used. 305 Rick James 05/31/2016 09:26PM
Re: Index Not being used. 342 Greg Mundt 06/01/2016 05:40AM
Re: Index Not being used. 284 Rick James 06/01/2016 11:29AM
Re: Index Not being used. 331 Greg Mundt 06/01/2016 11:41AM
Re: Index Not being used. 333 Rick James 06/04/2016 05:14PM
Re: Index Not being used. 338 Greg Mundt 05/27/2016 10:14AM


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