lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Mickaël Sauvée (JIRA) <j...@apache.org>
Subject [jira] [Created] (LUCENE-8810) Flattening of nested disjunctions does not take into account number of clause limitation of builder
Date Thu, 23 May 2019 14:00:02 GMT
Mickaël Sauvée created LUCENE-8810:
--------------------------------------

             Summary: Flattening of nested disjunctions does not take into account number
of clause limitation of builder
                 Key: LUCENE-8810
                 URL: https://issues.apache.org/jira/browse/LUCENE-8810
             Project: Lucene - Core
          Issue Type: Bug
          Components: core/search
    Affects Versions: 8.0
            Reporter: Mickaël Sauvée
             Fix For: 8.1.1


In org.apache.lucene.search.BooleanQuery, at the end of the function rewrite(IndexReader reader),
the query is rewritten to flatten nested disjunctions.

This does not take into account the limitation on the number of clauses in a builder (1024).
 In some circumstances, this limite can be reached, hence an exception is thrown.

Here is a unit test that highlight this.


{code:java}
  public void testFlattenInnerDisjunctionsWithMoreThan1024Terms() throws IOException {
    IndexSearcher searcher = newSearcher(new MultiReader());

    BooleanQuery.Builder builder1024 = new BooleanQuery.Builder();
    for(int i = 0; i < 1024; i++) {
      builder1024.add(new TermQuery(new Term("foo", "bar-" + i)), Occur.SHOULD);
    }
    Query inner = builder1024.build();
    Query query = new BooleanQuery.Builder()
        .add(inner, Occur.SHOULD)
        .add(new TermQuery(new Term("foo", "baz")), Occur.SHOULD)
        .build();
    searcher.rewrite(query);
  }
{code}




--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org


Mime
View raw message