Hi,
I am not completely sure on what's the recommended setting for fields
used for faceting regarding omitNorms and potitionIncrementGap.

Should I used omitNorms="true"?

What about positionIncrementGap?

At the moment I have this in my schema.xml:

<dynamicField name="*_facet" type="keyword" indexed="true" stored="false" multiValued="true" />
  <fieldType name="keyword" class="solr.TextField">
   <analyzer class="org.apache.lucene.analysis.KeywordAnalyzer"/>
  </fieldType>

And I was thinking to change to:

<dynamicField name="*_facet" type="keyword" indexed="true" stored="false" multiValued="true" omitNorms="true" positionIncrementGap="100" />

There is documentation, but I did not find a definite answer for
omitNorms in relation to faceting.

 "faceting: indexed='true'"
  -- http://wiki.apache.org/solr/FieldOptionsByUseCase

 "Only full-text fields or fields that need an index-time boost need
  norms."
-- http://svn.apache.org/repos/asf/lucene/dev/trunk/solr/example/solr/conf/schema.xml


Thank you,
Paolo

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