On Tue, Sep 14, 2010 at 9:40 PM, Ryan McKinley <[email protected]> wrote:
> Testing with r997128:
>
> I have a field defined as:
> <fieldType name="bytes" class="solr.TrieLongField"
> sortMissingLast="true" precisionStep="0" omitNorms="true"
> positionIncrementGap="0"/>
SortMissingLast/SortMissingFirst is currently only supported with
fields that internally use a StringIndex (now DocTermsIndex) because
that's the only FieldCache representation that records what fields are
missing (via an ord of 0).
There's a note in the example schema.xml:
<!-- The optional sortMissingLast and sortMissingFirst attributes are
currently supported on types that are sorted internally as strings.
This includes
"string","boolean","sint","slong","sfloat","sdouble","pdate"
That's actually the only reason the sint type fields are still around.
If we could distinguish between 0 and missing, we could
deprecate/remove the s* fields and always use trie fields.
-Yonik
http://lucenerevolution.org Lucene/Solr Conference, Boston Oct 7-8
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