Query Syntax page does not make it clear that wildcard searches are not allowed
in Phrase Queries
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Key: LUCENE-884
URL: https://issues.apache.org/jira/browse/LUCENE-884
Project: Lucene - Java
Issue Type: Improvement
Components: Website
Affects Versions: 2.0.1
Reporter: Paul Taylor
The queryparsersyntax page which is where I expect most novices (such as
myself) start with lucene seems to indicate that wildcards can be used in
phrase terms
Quoting:
'Terms: A query is broken up into terms and operators. There are two types of
terms: Single Terms and Phrases.
A Single Term is a single word such as "test" or "hello".
A Phrase is a group of words surrounded by double quotes such as "hello dolly".
....
Wildcard Searches
Lucene supports single and multiple character wildcard searches.
To perform a multiple character wildcard search use the "*" symbol.
Multiple character wildcard searches looks for 0 or more characters. For
example, to search for test, tests or tester, you can use the search:
test*
You can also use the wildcard searches in the middle of a term.
'
there is nothing to indicate in the section on Wildcard Searches that it can be
performed only on Single word terms not Phrase terms.
Chris argues 'that there is nothing in the description of a Phrase to indicate
that it can be anything other then what it says "a group of words surrounded by
double quotes" .. at no point does it
suggest that other types of queries or syntax can be used inside the quotes.
likewise the discussion of Wildcards makes no mention of phrases to suggest
that wildcard characters can be used in a phrase.'
but I don't accept this because there is nothing in the description of a Single
Term either to indicate it can use wildcards either. Wildcards are only
mentioned in the Wildcard section and there it says thay can be used in a term,
it does not restrict the type of term
I Propose a simple solution modify:
Lucene supports single and multiple character wildcard searches.
to
Lucene supports single and multiple character wildcard searches within single
terms.
(Chris asked for a patch, but Im not sure how to do this, but the change is
simple enough)
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