Evan Sayer created SOLR-6009:
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Summary: edismax mis-parsing RegexpQuery
Key: SOLR-6009
URL: https://issues.apache.org/jira/browse/SOLR-6009
Project: Solr
Issue Type: Bug
Components: query parsers
Affects Versions: 4.7.2
Reporter: Evan Sayer
edismax appears to be leaking its IMPOSSIBLE_FIELD_NAME into queries involving
a RegexpQuery. Steps to reproduce on 4.7.2:
1) remove the explicit <field /> definition for 'text'
2) add a catch-all '*' dynamic field of type text_general
<dynamicField name="*" type="text_general" multiValued="true" indexed="true"
stored="true" />
3) index the exampledocs/ data
4) run a query like the following:
http://localhost:8983/solr/collection1/select?q={!edismax%20qf=%27text%27}%20/.*elec.*/&debugQuery=true
The debugQuery output will look like this:
<lst name="debug">
<str name="rawquerystring">{!edismax qf='text'} /.*elec.*/</str>
<str name="querystring">{!edismax qf='text'} /.*elec.*/</str>
<str name="parsedquery">(+RegexpQuery(:/.*elec.*/))/no_coord</str>
<str name="parsedquery_toString">+:/.*elec.*/</str>
If you copy/paste the parsed-query into a text editor or something, you can see
that the field-name isn't actually blank. The IMPOSSIBLE_FIELD_NAME ends up in
there.
I haven't been able to reproduce this behavior on 4.7.2 without getting rid of
the explicit field definition for 'text' and using a dynamicField, which is how
things are setup on the machine where this issue was discovered. The query
isn't quite right with the explicit field definition in place either, though:
<lst name="debug">
<str name="rawquerystring">{!edismax qf='text'} /.*elec.*/</str>
<str name="querystring">{!edismax qf='text'} /.*elec.*/</str>
<str name="parsedquery">(+DisjunctionMaxQuery((text:elec)))/no_coord</str>
<str name="parsedquery_toString">+(text:elec)</str>
numFound=0 for both of these. This site is useful for looking at the
characters in the first variant:
http://rishida.net/tools/conversion/
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