Rupert Westenthaler created STANBOL-607:
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Summary: SolrYard should use quotes instead of AND for multi word
TextConstraints
Key: STANBOL-607
URL: https://issues.apache.org/jira/browse/STANBOL-607
Project: Stanbol
Issue Type: Improvement
Reporter: Rupert Westenthaler
Assignee: Rupert Westenthaler
Priority: Minor
Fix For: 0.10.0-incubating
Currently a Text constraint for rdfs:label containing "The Book of Three" is
encoded like
(_\!@/rdfs\:label/:The) AND ((_\!@/rdfs\:label/:Book) AND
(_\!@/rdfs\:label/:of) AND(_\!@/rdfs\:label/:Three))
however Solr/Lucene allow to use quotes for multi word searches. So the correct
way to encode this query would be
((_\!@/rdfs\:label/:"The Book of Three"))
This need to be fixed in the
"org.apache.stanbol.entityhub.yard.solr.query.QueryUtils#encodeQueryValue(..)
NOTE: The impact of this change for Wildcard queries need to be further
investigated
e.g take a query "Frankf* am Main" currently encoded like
(_\!@/rdfs\:label/:Frankf*) AND ((_\!@/rdfs\:label/:am) AND
(_\!@/rdfs\:label/:main))
would than result in
((_\!@/rdfs\:label/:"Frankf* am Main"))
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