ODBC drivers in Polybase: Changes with connection settings and metadata are not reflected

  • 16 August 2023
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Issue: Sometimes, changes to a DSN meant to change driver behavior, how metadata is exposed, or what metadata exists will not be immediately apparent when the driver is used from Polybase. In those cases, Polybase likely has a stale set of connection info and/or metadata cached within its process memory. 

Fix: Restart the PolyBase Engine and Polybase Data Movement service to clear the cache 

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