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From SolrUser1543 <>
Subject Performance of Boolean query with hundreds of OR clauses.
Date Tue, 19 Aug 2014 18:57:03 GMT
I am using Solr to perform search for finding similar pictures. 

For this purpose, every image indexed as a set of descriptors ( descriptor
is a string of 6 chars ) .
Number of descriptors for every image may vary ( from few to many thousands)

When I want to search  for a similar image , I am extracting the descriptors
from it and create a query like :
MyImage:( desc1 desc2 ...  desc n )

Number of descriptors in query may also vary. Usual it is about 1000.

Of course performance of this query very bad and may take few minutes to
return . 

Any ideas for performance improvement ? 

P.s I also tried to use lire , but it is not fits my use case.  

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