Even without the underscore, it still errors.
09-14-2015 09:44:56.460 +1000 ERROR AdminManagerExternal - Received malformed XML from external handler:\nFailed to validate: com.splunk.config.SplunkConfigurationException: Error validating dbmonTail for monitor=dbmon-tail://AttacheBi/AttacheBI_General_Ledger_Ingest: [FairCom][ODBC FairCom Driver 10.3.0.19319(Build-140121)][ctreeSQL] -20006 Column uniqueconcat not found/specified with query
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