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Posted to issues@lucene.apache.org by "Julie Tibshirani (Jira)" <ji...@apache.org> on 2021/07/15 23:18:00 UTC

[jira] [Created] (LUCENE-10026) CombinedFieldQuery has incorrect equals/ hashCode

Julie Tibshirani created LUCENE-10026:
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             Summary: CombinedFieldQuery has incorrect equals/ hashCode
                 Key: LUCENE-10026
                 URL: https://issues.apache.org/jira/browse/LUCENE-10026
             Project: Lucene - Core
          Issue Type: Bug
            Reporter: Julie Tibshirani


The current equals and hashCode methods only compare query terms. This
meant that queries on different fields, or with different field weights, are
considered equal.

During boolean query rewrites, duplicate clauses are removed. So because equals/
hashCode is incorrect, rewrites can accidentally drop CombinedFieldQuery clauses.





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