Why do I get this message
When MsSql server expresses itself by the following error: "Internal Query Processor Error: The query processor could not produce a query plan" Usually this message is due to some invalid or conflicting settings with the quoted identifier setting. My lack of interest kept me from learning the mechanics about the error. Usually fixed by removing all set quoted identifier - modifiers in your .sql-files then control this globally with your client (like sqlcmd.exe -I).