Markus Jelsma created LUCENE-4470:
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Summary: Expose SpanFirst in eDismax
Key: LUCENE-4470
URL: https://issues.apache.org/jira/browse/LUCENE-4470
Project: Lucene - Core
Issue Type: Improvement
Components: modules/queryparser
Affects Versions: 4.0-BETA
Environment: solr-spec 5.0.0.2012.10.09.19.29.59
solr-impl 5.0-SNAPSHOT 1366361:1396116M - markus - 2012-10-09 19:29:59
Reporter: Markus Jelsma
Fix For: 4.1, 5.0
Expose Lucene's SpanFirst capability in Solr's extended Dismax query parser.
This issue adds the SF-parameter (SpanFirst) and takes a FIELD~DISTANCE^BOOST
formatted value.
For example, sf=title~5^2 will give a boost of 2 if one of the normal clauses,
originally generated for automatic phrase queries, is located within five
positions from the field's start.
Unit test is included and all tests pass.
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