Jack Krupansky created SOLR-3741:
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Summary: ExtendedDismaxQParser (edismax) does not obey q.op for
queries with operators
Key: SOLR-3741
URL: https://issues.apache.org/jira/browse/SOLR-3741
Project: Solr
Issue Type: Bug
Components: query parsers
Affects Versions: 4.0-BETA, 3.6.1
Reporter: Jack Krupansky
Fix For: 4.0, 3.6.2
For a query such as "cat dog OR (fox bat fish)" with &q.op=AND, the default
query operator remains "OR" for the entire query. This is not documented
behavior and rather surprising.
This happens because edismax only simulates the default operator by forcing
"mm" (minMatch) to 100% for the top-level BooleanQuery alone, but only if there
are NO explicit operators present.
One solution is for edismax to always set the default query operator when
calling the classic Lucene query parser, or at least when q.op=AND.
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