Benchmark package uses new TopFieldCollector but also still uses AUTO
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Key: LUCENE-1725
URL: https://issues.apache.org/jira/browse/LUCENE-1725
Project: Lucene - Java
Issue Type: Bug
Reporter: Mark Miller
Assignee: Mark Miller
Priority: Minor
Fix For: 2.9
AUTO does not work with TopFieldCollector. If you want to use AUTO with
TopFieldCollector, we have a convienence method called detectType on SortField,
but it is package protected and so cannot be used here as a stop gap or by
users if they wanted to mix AUTO with TopFieldCollector. Lucene does still
handle this for back compat internally. Solr got bit here when it was switched
to use TopFieldCollector - no auto resolution was added (detectType help
couldn't have been used due to visibility), and the result was that plugin code
that used to be able to use AUTO would now blow up. You shouldn't use AUTO in
Solr anyway though.
The Benchmark package got bit as well when it moved to TopFieldCollector. Sort
algorithms allowed auto if you specified it, or if you left off the type. Now
our sort algs fail because they didn't specify a type.
I'll change to require the type to be specified to get the algs working again.
I was thinking of just putting auto resolution in as a stop gap till 3.0 (when
auto is removed), but since detectFieldType is package protected and I don't
want to repeat it, disallowing auto seems the best way to go.
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