lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Yonik Seeley (JIRA)" <>
Subject [jira] Created: (LUCENE-451) BooleanQuery explain with boost==0
Date Tue, 11 Oct 2005 15:58:05 GMT
BooleanQuery explain with boost==0

         Key: LUCENE-451
     Project: Lucene - Java
        Type: Bug
  Components: Search  
    Versions: CVS Nightly - Specify date in submission    
    Reporter: Yonik Seeley
    Priority: Minor

BooleanWeight.explain() uses the returned score of subweights to determine if a clause matched.
If any required clause has boost==0, the returned score will be zero and the explain for the
entire BooleanWeight will be simply  Explanation(0.0f, "match required").

I'm not sure what the correct fix is here.  I don't think it can be done based on score alone,
since that isn't how scorers work.   Perhaps we need a new method "boolean Explain.matched()"
that returns true on a match, regardless of what the score may be? 

Related to the problem above, even if no boosts are zero, it it sometimes nice to know *why*
a particular query failed to match.  It would mean a longer explanation, but maybe we should
include non matching explains too?

This message is automatically generated by JIRA.
If you think it was sent incorrectly contact one of the administrators:
For more information on JIRA, see:

To unsubscribe, e-mail:
For additional commands, e-mail:

View raw message