SQL 2012 Split Partition Problem: A severe error occurred on the current command. The results, if any, should be discarded

We encountered an unexpected exception error a few months ago while attempting to split an existing partition for the next future month. All the details of the problem, troubleshooting, and solution are provided below, but the root cause was determined to be a product limitation in SQL2K12 RTM to which a CU is expected by Feb/Mar…

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