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Re: Compound index (pkey) not used when it should be
Posted by: Dan Parker
Date: December 01, 2017 10:36AM

Thank you. That does in indeed cause the PRIMARY key to be used, and the query performance is as expected.

It seems rather odd that the optimizer would be unable to recognize the applicability of a composite index when evaluating a very simple query where every relevant clause EXACTLY matches the structure of that index.

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Compound index (pkey) not used when it should be
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Dan Parker
November 29, 2017 01:39PM
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November 29, 2017 04:21PM
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November 29, 2017 04:38PM
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November 29, 2017 05:16PM
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November 29, 2017 05:25PM
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November 29, 2017 06:23PM
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November 29, 2017 07:46PM
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November 30, 2017 10:31AM
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December 01, 2017 11:02AM
Re: Compound index (pkey) not used when it should be
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Dan Parker
December 01, 2017 11:05AM
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Peter Brawley
December 01, 2017 11:19AM
Re: Compound index (pkey) not used when it should be
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Dan Parker
December 01, 2017 11:26AM
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Peter Brawley
December 01, 2017 01:04PM
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December 01, 2017 01:10PM
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Peter Brawley
December 01, 2017 05:01PM
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Øystein Grøvlen
December 01, 2017 10:10AM
Re: Compound index (pkey) not used when it should be
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Dan Parker
December 01, 2017 10:36AM


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