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

Hi,

Unfortunately, MySQL does not recognize that an index range scan can be used for "(x,y) >= (a,b)". Try rewriting the query to use "(x > a) OR (x = a AND y >= b)".

Øystein Grøvlen,
Senior Principal Software Engineer,
MySQL Group, Oracle,
Trondheim, Norway

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