[jira] [Created] (OAK-2438) Evaluate support for must(must_not(x)) query with Lucene

["Chetan Mehrotra (JIRA)" <ji...@apache.org>]

Chetan Mehrotra created OAK-2438:
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             Summary: Evaluate support for must(must_not(x)) query with Lucene
                 Key: OAK-2438
                 URL: https://issues.apache.org/jira/browse/OAK-2438
             Project: Jackrabbit Oak
          Issue Type: Task
          Components: oak-lucene
            Reporter: Chetan Mehrotra
            Assignee: Chetan Mehrotra
            Priority: Minor
             Fix For: 1.1.6


As part of OAK-2434 fix we are changing following logic

{code:java}
@Override
            public boolean visit(FullTextAnd and) {
                BooleanQuery q = new BooleanQuery();
                for (FullTextExpression e : and.list) {
                    Query x = getFullTextQuery(e, analyzer, reader);
                    // Lucene can't deal with "must(must_not(x))"
                    if (x instanceof BooleanQuery) {
                        BooleanQuery bq = (BooleanQuery) x;
                        for (BooleanClause c : bq.clauses()) {
                            q.add(c);
                        }
                    } else {
                        q.add(x, MUST);
                    }
                }
                result.set(q);
                return true;
            }
{code}

With a logic where the query is always added to BooleanQuery without unwrapping. This might affect logic related to comment _// Lucene can't deal with "must(must_not(x))"_. Currently there is no testcase to check that condition and we are not sure how this change would affect such a check.

So need to add a testcase to document the behaviour for such cases



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