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From "Yonik Seeley (JIRA)" <>
Subject [jira] Commented: (LUCENE-2649) FieldCache should include a BitSet for matching docs
Date Fri, 17 Sep 2010 15:42:33 GMT


Yonik Seeley commented on LUCENE-2649:

bq. public void setCacheValidBitsForFields( Set<String> names );

Solr doesn't even know all of the fields at the time it reads it's schema.  And even if it
did... this would seem to break multi-core or anything trying to have more than one index
where the fields are different.  Seems like this needs to be passed down via SortField, just
like FieldCache.Parser.  A factory makes this a more generic method than adding additional
params to SortField every time we think of something like this... then we can add stuff like
getFieldCacheParser() and other stuff to the factory.

> FieldCache should include a BitSet for matching docs
> ----------------------------------------------------
>                 Key: LUCENE-2649
>                 URL:
>             Project: Lucene - Java
>          Issue Type: Improvement
>            Reporter: Ryan McKinley
>             Fix For: 4.0
>         Attachments: LUCENE-2649-FieldCacheWithBitSet.patch, LUCENE-2649-FieldCacheWithBitSet.patch
> The FieldCache returns an array representing the values for each doc.  However there
is no way to know if the doc actually has a value.
> This should be changed to return an object representing the values *and* a BitSet for
all valid docs.

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