You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@lucene.apache.org by "Jack Krupansky (JIRA)" <ji...@apache.org> on 2016/03/09 23:12:40 UTC
[jira] [Commented] (SOLR-8812) ExtendedDismaxQParser (edismax)
ignores Boolean OR when q.op=AND
[ https://issues.apache.org/jira/browse/SOLR-8812?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15188158#comment-15188158 ]
Jack Krupansky commented on SOLR-8812:
--------------------------------------
The difference in the generated query appears to be the "))~2" which indicates a BooleanQuery with a minShouldMatch of 2 which means that both OR/SHOULD terms MUST match, effectively turning SHOULD/OR into MUST/AND.
I'm guessing it was this 5.5 change: SOLR-2649:
{code}
* SOLR-2649: MM ignored in edismax queries with operators.
(Greg Pendlebury, Jan Høydahl et. al. via Erick Erickson)
{code}
I think q.op=AND simply sets MM=100%, effectively overriding the explicit OR.
> ExtendedDismaxQParser (edismax) ignores Boolean OR when q.op=AND
> ----------------------------------------------------------------
>
> Key: SOLR-8812
> URL: https://issues.apache.org/jira/browse/SOLR-8812
> Project: Solr
> Issue Type: Bug
> Components: query parsers
> Affects Versions: 5.5
> Reporter: Ryan Steinberg
>
> The edismax parser ignores Boolean OR in queries when q.op=AND. This behavior is new to Solr 5.5.0 and an unexpected major change.
> Example:
> "q": "id:12345 OR zzzzzzzzzz",
> "defType": "edismax",
> "q.op": "AND",
> where "12345" is a known document ID and "zzzzzzzzzz" is a string NOT present in my data
> Version 5.5.0 produces zero results:
> "rawquerystring": "id:12345 OR zzzzzzzzzz",
> "querystring": "id:12345 OR zzzzzzzzzz",
> "parsedquery": "(+((id:12345 DisjunctionMaxQuery((text:zzzzzzzzzz)))~2))/no_coord",
> "parsedquery_toString": "+((id:12345 (text:zzzzzzzzzz))~2)",
> "explain": {},
> "QParser": "ExtendedDismaxQParser"
> Version 5.4.0 produces one result as expected
> "rawquerystring": "id:12345 OR zzzzzzzzzz",
> "querystring": "id:12345 OR zzzzzzzzzz",
> "parsedquery": "(+(id:12345 DisjunctionMaxQuery((text:zzzzzzzzzz))))/no_coord",
> "parsedquery_toString": "+(id:12345 (text:zzzzzzzzzz))"
> "explain": {},
> "QParser": "ExtendedDismaxQParser"
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org