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https://issues.apache.org/jira/browse/LUCENE-7437?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15470484#comment-15470484
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Michael Pichler edited comment on LUCENE-7437 at 9/7/16 12:33 PM:
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Hello Uwe,
thanks for the quick reply!
As we do not use stemming on indexing, this would be a suitable option for us
(in fact we already override getPrefixQuery and getFuzzyQuery in our custom
QueryParser like done in the AnalyzingQueryParser).
I tried to use {{AnalyzingQueryParser}} in the test program and got the *same
result* (thus I re-opened the issue). Even though the analyzer gets involved,
it is still not used for tokenizing the input.
{code}
// QueryParser queryParser = new QueryParser(FIELD_NAME, analyzer);
QueryParser queryParser = new AnalyzingQueryParser(FIELD_NAME, analyzer);
System.err.println("using QueryParser " + queryParser.getClass());
{code}
{noformat}
using QueryParser class
org.apache.lucene.queryparser.analyzing.AnalyzingQueryParser
search: 'qwert asdf*', query: '+f:qwert +f:asdf*', #hits: 1
search: 'qwert_asdf*', query: 'f:qwert_asdf*', #hits: 0
^^^ expected 1 hit(s), got 0
search: 'qwert%asdf*', query: 'f:qwert%asdf*', #hits: 0
^^^ expected 1 hit(s), got 0
{noformat}
was (Author: mpichler):
Hello Uwe,
thanks for the quick reply!
As we do not use stemming on indexing, this would be a suitable option for us
(in fact we already override getPrefixQuery and getFuzzyQuery in our custom
QueryParser like done in the AnalyzingQueryParser).
I tried to use {{AnalyzingQueryParser}} in the test program and got the *same
result*. Even though the analyzer gets involved, it still is not used for
tokenizing the input.
{code}
// QueryParser queryParser = new QueryParser(FIELD_NAME, analyzer);
QueryParser queryParser = new AnalyzingQueryParser(FIELD_NAME, analyzer);
System.err.println("using QueryParser " + queryParser.getClass());
{code}
{noformat}
using QueryParser class
org.apache.lucene.queryparser.analyzing.AnalyzingQueryParser
search: 'qwert asdf*', query: '+f:qwert +f:asdf*', #hits: 1
search: 'qwert_asdf*', query: 'f:qwert_asdf*', #hits: 0
^^^ expected 1 hit(s), got 0
search: 'qwert%asdf*', query: 'f:qwert%asdf*', #hits: 0
^^^ expected 1 hit(s), got 0
{noformat}
> QueryParser with wildcard search does not use Analyzer's tokenizer
> ------------------------------------------------------------------
>
> Key: LUCENE-7437
> URL: https://issues.apache.org/jira/browse/LUCENE-7437
> Project: Lucene - Core
> Issue Type: Bug
> Components: core/queryparser
> Affects Versions: 6.2
> Reporter: Michael Pichler
> Assignee: Uwe Schindler
> Attachments: LuceneTest.java
>
>
> Using a tokenizer that splits at underscores (e.g. SimpleAnalyzer) splits
> "qwert_asdfghjkl" into two words at the time of indexing.
> Searches for "qwert asdf*" or "qwert_asdfghjkl" work as expected.
> However, when a query contains wildcards, e.g. "qwert_asdf*" the query parser
> does not use the tokenizer of its analyzer to split the words and thus finds
> no result.
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