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From "Uwe Schindler (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-2134) Trie* fields should support sortMissingLast=true, and deprecate Sortable* Field Types
Date Tue, 01 Nov 2011 19:33:32 GMT

    [ https://issues.apache.org/jira/browse/SOLR-2134?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13141484#comment-13141484
] 

Uwe Schindler commented on SOLR-2134:
-------------------------------------

The whole story is more complicated:

The sortMissingLast/First part in Lucene is different between 3.x and trunk (4.0). The implementation
in trunk is not good designed and is to be replaced by the 3.x version, which needs heavy
reverting :-)

The Lucene 3.x version supports sortmissinglast/first (since 3.4, using a new API), but this
was not yet ported to Solr. We want to first fix trunk to use the better approach and will
also revert the Solr implementation when we do this. After that we have a clean start and
can do: LUCENE-3443
                
> Trie* fields should support sortMissingLast=true, and deprecate Sortable* Field Types
> -------------------------------------------------------------------------------------
>
>                 Key: SOLR-2134
>                 URL: https://issues.apache.org/jira/browse/SOLR-2134
>             Project: Solr
>          Issue Type: Improvement
>          Components: Schema and Analysis
>            Reporter: Ryan McKinley
>         Attachments: SOLR-2134-SortMissingLast.patch, SOLR-2134-SortMissingLast.patch,
SOLR-2134-SortMissingLast.patch, SOLR-2134-SortMissingLast.patch
>
>
> With the changes in LUCENE-2649, the FieldCache also returns if the bit is valid or not.
 This is enough to support sortMissingLast=true with Trie* fields.  Then we can get rid of
the Sortable* fields

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