[mythtv-commits] Ticket #7946: Add SQL indexes to crossreferenced data in MythVideo

[MythTV]

#7946: Add SQL indexes to crossreferenced data in MythVideo
--------------------------------+-------------------------------------------
 Reporter:  wagnerrp            |       Owner:  awithers
     Type:  enhancement         |      Status:  new     
 Priority:  minor               |   Milestone:  0.23    
Component:  Plugin - MythVideo  |     Version:  head    
 Severity:  low                 |     Mlocked:  0       
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 This patch adds indexes to the videometadatacast, videometadatagenre, and
 videometadatacountry tables. This allows searches for videos containing a
 list of actors to be performed in a reasonable time (1.33 seconds vs.
 10min before I killed mysql). This is to allow an improvement over a
 search in the new Python bindings which is only capable of search of one
 cast member.

 SELECT videometadata.*
   FROM videometadata
  WHERE (SELECT COUNT(DISTINCT videocast.cast)
           FROM videometadatacast
           JOIN videocast
             ON videocast.intid=videometadatacast.idcast
          WHERE videometadatacast.idvideo=videometadata.intid
            AND (    videocast.cast='Nathan Lane'
                  OR videocast.cast='Meg Gillentine')
        ) = 2;

 Thanks to kormoc for the SQL.

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Ticket URL: <http://svn.mythtv.org/trac/ticket/7946>
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