nuvolabase/orientdb — pull request #1213 by fabriziofortino (2012-12-14 09:31:04+00:00)
Title: replace throw of OIndexException with ORecordDuplicatedException in OIndexUnique

Changed throw in case of duplicate key to simplify merge as explained in thread:

https://groups.google.com/forum/?fromgroups=#!topic/orient-database/to5qFkESChY