Symptoms

You process an ADO.NET Provider for Host Files provider against a z/OS dataset record. If the provider contains a SELECT statement that contains a discriminated union, the provider fails.

In this situation, you receive no error message.

Resolution

This problem is fixed in Cumulative Update 1 for Host Integration Server 2016.

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

References

Learn about the terminology Microsoft uses to describe software updates.

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