Comment 1 for bug 1069727

Did you delete all documents prior to re-indexing (deleteByQuery *.*) as I mentioned? Or did you forget to commit the deletion?
Since I changed the field type of a couple of fields, your index won't be compatible to the new schema as long as it contains any documents indexed with the old schema - and therefore won't return any results.

Are there any hints in the log files? (Unknown or invalid fields should be logged by Solr.)