Michael McCandless created LUCENE-6379:
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Summary: IndexWriter's delete-by-query should optimize/specialize
MatchAllDocsQuery
Key: LUCENE-6379
URL: https://issues.apache.org/jira/browse/LUCENE-6379
Project: Lucene - Core
Issue Type: Improvement
Reporter: Michael McCandless
Assignee: Michael McCandless
Fix For: Trunk, 5.1
We can short-circuit this to just IW.deleteAll (Solr already does so I think).
This also has the nice side effect of clearing Lucene's low-schema (FieldInfos).
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