lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Andrzej Bialecki (JIRA)" <>
Subject [jira] Created: (SOLR-1918) Bit-wise scoring field type
Date Tue, 18 May 2010 15:52:43 GMT
Bit-wise scoring field type

                 Key: SOLR-1918
             Project: Solr
          Issue Type: New Feature
          Components: Schema and Analysis
    Affects Versions: 3.1
            Reporter: Andrzej Bialecki 

This field type supports bit-wise matching with scoring over fields containing 32-bit integer

Internally during indexing the field value is interpreted as a 32-bit integer and converted
to a set of bitmask terms. During search the query term is also converted into a BooleanQuery
of corresponding bitmask terms, added as Occur.SHOULD clauses. The scoring of such query over
such field produces the desired effect, where bit patterns closest to the query get highest

NOTE: currently only single value per field, a future extension will support multiple values.

The difference between this issue and SOLR-1913 is that SOLR-1913 offers filtering only (no
scoring), while this implementation performs scoring, which allows finding the best matching
inexact bit patterns. This has applications in e.g. near-duplicate detection.

This message is automatically generated by JIRA.
You can reply to this email to add a comment to the issue online.

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

View raw message