MySQL Forums
Forum List  »  Optimizer & Parser

Advanced Search
New Topic

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

Navigate: Previous Message• Next Message
Options: Reply• Quote


Subject
Views
Written By
Posted
Compound index (pkey) not used when it should be
252
Dan Parker
November 29, 2017 01:39PM
Re: Compound index (pkey) not used when it should be
176
Peter Brawley
November 29, 2017 04:21PM
Re: Compound index (pkey) not used when it should be
160
Dan Parker
November 29, 2017 04:38PM
Re: Compound index (pkey) not used when it should be
162
Peter Brawley
November 29, 2017 05:16PM
Re: Compound index (pkey) not used when it should be
159
Dan Parker
November 29, 2017 05:25PM
Re: Compound index (pkey) not used when it should be
154
Peter Brawley
November 29, 2017 06:13PM
Re: Compound index (pkey) not used when it should be
172
Dan Parker
November 29, 2017 06:23PM
Re: Compound index (pkey) not used when it should be
145
Peter Brawley
November 29, 2017 07:46PM
Re: Compound index (pkey) not used when it should be
147
Dan Parker
November 30, 2017 10:31AM
Re: Compound index (pkey) not used when it should be
150
Peter Brawley
December 01, 2017 11:02AM
Re: Compound index (pkey) not used when it should be
148
Dan Parker
December 01, 2017 11:05AM
Re: Compound index (pkey) not used when it should be
150
Peter Brawley
December 01, 2017 11:19AM
Re: Compound index (pkey) not used when it should be
147
Dan Parker
December 01, 2017 11:26AM
Re: Compound index (pkey) not used when it should be
145
Peter Brawley
December 01, 2017 01:04PM
Re: Compound index (pkey) not used when it should be
155
Dan Parker
December 01, 2017 01:10PM
Re: Compound index (pkey) not used when it should be
137
Peter Brawley
December 01, 2017 05:01PM
Re: Compound index (pkey) not used when it should be
152
Øystein Grøvlen
December 01, 2017 10:10AM
Re: Compound index (pkey) not used when it should be
142
Dan Parker
December 01, 2017 10:36AM


Sorry, you can't reply to this topic. It has been closed.

Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does not necessarily represent the opinion of Oracle or any other party.