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From "Yonik Seeley (JIRA)" <>
Subject [jira] [Created] (SOLR-7295) Remove uses of Query.clone()
Date Tue, 24 Mar 2015 13:03:55 GMT
Yonik Seeley created SOLR-7295:

             Summary: Remove uses of Query.clone()
                 Key: SOLR-7295
             Project: Solr
          Issue Type: Bug
            Reporter: Yonik Seeley

LUCENE-6369 changed Query.clone to clone deeply.
This is going to represent a performance regression to some who have very large / complex

- try to remove any uses of clone() (we assumed shallow clone, and that's no longer the case)
- attempt to minimize the use of queries that do rewrite (we can only do this in our own query
implementations).   A query that rewrites to a different query will now cause everything to
be deep cloned if it's used in a boolean query anywhere.

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