Details
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Bug
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Status: Open
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Major
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Resolution: Unresolved
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1.8.0
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None
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None
Description
Issuing a query like SELECT CONVERT_FROM(CONVERT_TO(columnName, 'json'), 'utf8') FROM fails if columnName is not present in the current dataset being queried, or contains only nulls.
Error received: org.apache.drill.common.exceptions.UserRemoteException: SYSTEM ERROR: UnsupportedOperationException: Unable to get holder type for minor type [LATE] and mode [OPTIONAL] Fragment 0:0