Thanks, that's very useful info. However can't reproduce the error. I've created and index where all documents have a multivalued date field and each document have a minimum of one value in that field. (most of the docs have 2 or 3). So, the number of un-inverted term instances is greater than the number of documents. *There are lot's of docs with the same value, I mention that because I supose that same value has nothing to do with the number of un-inverted term instances.
Never get the error explained here: http://lucene.472066.n3.nabble.com/Different-sort-behavior-on-same-code-td503761.html Could be that solr 1.4 or lucene 2.9.1 handle this avoiding the error? -- View this message in context: http://lucene.472066.n3.nabble.com/performance-sorting-multivalued-field-tp905943p920464.html Sent from the Solr - User mailing list archive at Nabble.com.