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https://issues.apache.org/jira/browse/LUCENE-993?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Anthony Yeracaris updated LUCENE-993:
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Attachment: MultiFieldQueryParserBug.java
> MultiFieldQueryParser doesn't process search strings containing field
> references correctly when BooleanClause.Occur.MUST_NOT is used
> ------------------------------------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-993
> URL: https://issues.apache.org/jira/browse/LUCENE-993
> Project: Lucene - Java
> Issue Type: Bug
> Components: QueryParser, Search
> Affects Versions: 2.2
> Reporter: Anthony Yeracaris
> Attachments: MultiFieldQueryParserBug.java
>
>
> Below, and attached, is a complete java program illustrating this bug.
> In this program,I have an "allowed" field and a "restricted" field. The user
> is not permitted to search the "restricted" field. However, if the user
> provides the search string "allowed:value", then the MultiFieldQueryParser
> returns "allowed:valu -allowed:valu", which has the effect of finding nothing.
> In the case the user provides a search string containing field references, I
> would expect the parser to use the field and occur arrays as constraints. In
> other words, if a the user mentions a field that has an occur of MUST_NOT,
> then that field should be elided from the search. At the end of parsing,
> there must be at least one search term, all MUST fields must have been
> mentioned.
> import org.apache.lucene.queryParser.MultiFieldQueryParser;
> import org.apache.lucene.queryParser.ParseException;
> import org.apache.lucene.search.BooleanClause;
> import org.apache.lucene.analysis.snowball.SnowballAnalyzer;
> public class MultiFieldQueryParserBug {
> public static void main(String[] argv) {
> try
> {
> System.out.println(MultiFieldQueryParser.parse("allowed:value",
> new String[]{"allowed", "restricted"},
> new BooleanClause.Occur[]{BooleanClause.Occur.SHOULD,
> BooleanClause.Occur.MUST_NOT},
> new SnowballAnalyzer("English")));
> // Output is:
> // allowed:valu -allowed:valu
> }
> catch (ParseException e)
> {
> e.printStackTrace(); // generated
> }
> }
> }
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