[Xapian-tickets] [Xapian] #428: Replacing unmodified positions check optimisation

[Xapian]

#428: Replacing unmodified positions check optimisation
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 Reporter:  olly           |       Owner:  olly     
     Type:  enhancement    |      Status:  assigned 
 Priority:  normal         |   Milestone:  1.0.19   
Component:  Backend-Chert  |     Version:  SVN trunk
 Severity:  normal         |    Keywords:           
Blockedby:                 |    Platform:  All      
 Blocking:                 |  
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Comment(by olly):

 I've just done a test of indexing a database with positions, and then
 separately indexing the same documents 10 times using replace_document
 such that each document is replaced with the same contents.  In both
 cases, it is a bit faster with this patch (tested backported to 1.0 and
 with flint).

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Ticket URL: <http://trac.xapian.org/ticket/428#comment:3>
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