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From "Tim Williams (JIRA)" <>
Subject [jira] [Created] (BLUR-321) Improve faceting performance
Date Thu, 19 Dec 2013 18:59:07 GMT
Tim Williams created BLUR-321:

             Summary: Improve faceting performance
                 Key: BLUR-321
             Project: Apache Blur
          Issue Type: Bug
          Components: Blur
    Affects Versions: 0.2.0, 0.2.1, 0.2.2
            Reporter: Tim Williams

The performance of a query with facets is relative to the number of documents that match the
user query - so queries that match lots of documents (e.g. *) perform pretty terrible in an
environment with lots of data.  This is even if the query and all facets are independently
very fast.

To reproduce, create a large index with some term that's in most documents, then query on
that term with lots (~200) trivial term-based facets.

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