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Re: (non-unique) index more efficient than partition pruning
Posted by: Rick James ()
Date: November 19, 2014 06:01PM

Here's some of what we have have discussed, plus more. In particular it includes the two SQLs that I promised you a few days ago.
http://mysql.rjweb.org/doc.php/staging_table
Please review it and let me know of any typos, goofs, missing things, wrong statements, whatever.

Was that partition pruning issue with MariaDB 5.2? There may have been improvements since then.

> partitions = idx0,idx2

That is an issue with 'bad' dates mapping to the 'first' partition. Hence it is better to have the first partition empty (bogus).

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Subject Views Written By Posted
large InnoDB table partitioning without explicit PK 2492 Miko M 11/12/2014 07:41PM
Re: large InnoDB table partitioning without explicit PK 1410 Rick James 11/13/2014 06:40PM
Re: large InnoDB table partitioning without explicit PK 1243 Miko M 11/14/2014 03:02AM
Re: large InnoDB table partitioning without explicit PK 990 Rick James 11/15/2014 12:05AM
Re: large InnoDB table partitioning without explicit PK 1012 Miko M 11/16/2014 07:39PM
Re: large InnoDB table partitioning without explicit PK 893 Rick James 11/17/2014 04:21PM
Re: large InnoDB table partitioning without explicit PK 996 Rick James 11/17/2014 07:48PM
Re: large InnoDB table partitioning without explicit PK 962 Miko M 11/18/2014 02:00AM
Re: large InnoDB table partitioning without explicit PK 1005 Rick James 11/18/2014 11:35PM
Re: large InnoDB table partitioning without explicit PK 1053 Miko M 11/22/2014 06:44AM
Re: large InnoDB table partitioning without explicit PK 946 Miko M 11/18/2014 01:13AM
(non-unique) index more efficient than partition pruning 1174 Miko M 11/19/2014 12:27AM
Re: (non-unique) index more efficient than partition pruning 1044 Rick James 11/19/2014 06:01PM
Re: (non-unique) index more efficient than partition pruning 1073 Miko M 11/22/2014 08:39AM
Re: large InnoDB table partitioning without explicit PK 1060 Miko M 11/14/2014 03:04AM
Re: large InnoDB table partitioning without explicit PK 1113 Miko M 11/14/2014 03:05AM
Re: large InnoDB table partitioning without explicit PK 1203 Rick James 11/15/2014 12:32AM
Re: large InnoDB table partitioning without explicit PK 1129 Miko M 11/16/2014 08:31PM
Re: large InnoDB table partitioning without explicit PK 966 Rick James 11/19/2014 12:12AM
Re: large InnoDB table partitioning without explicit PK 938 Miko M 11/22/2014 09:07AM
Re: large InnoDB table partitioning without explicit PK 925 Rick James 11/23/2014 09:00PM
Re: large InnoDB table partitioning without explicit PK 1015 Miko M 12/01/2014 11:16AM


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