Wildcards, ORs etc inside Phrase queries
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Key: LUCENE-1486
URL: https://issues.apache.org/jira/browse/LUCENE-1486
Project: Lucene - Java
Issue Type: Improvement
Components: QueryParser
Affects Versions: 2.4
Reporter: Mark Harwood
Priority: Minor
Fix For: 2.4.1
An extension to the default QueryParser that overrides the parsing of
PhraseQueries to allow more complex syntax e.g. wildcards in phrase queries.
The implementation feels a little hacky - this is arguably better handled in
QueryParser itself. This works as a proof of concept for much of the query
parser syntax. Examples from the Junit test include:
checkMatches("\"j* smyth~\"", "1,2"); //wildcards and fuzzies
are OK in phrases
checkMatches("\"(jo* -john) smith\"", "2"); // boolean logic
works
checkMatches("\"jo* smith\"~2", "1,2,3"); // position logic
works.
checkBadQuery("\"jo* id:1 smith\""); //mixing fields in a
phrase is bad
checkBadQuery("\"jo* \"smith\" \""); //phrases inside phrases
is bad
checkBadQuery("\"jo* [sma TO smZ]\" \""); //range queries
inside phrases not supported
Code plus Junit test to follow...
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