Here's the list of all the datatypes for Parquet file metadata.. https://github.com/apache/parquet-format/blob/master/LogicalTypes.md
I recently started using PyArrow to generate parquet files and it looks like Drill can't convert a primitive INT32 in the file to a logical INT_16 if it is NULL.. Query Failed: An Error Occurred org.apache.drill.common.exceptions.UserRemoteException: SYSTEM ERROR: ExecutionSetupException: Unsupported nullable converted type INT_16 for primitive type INT32 Fragment 1:3 This message may contain information that is confidential or privileged. If you are not the intended recipient, please advise the sender immediately and delete this message. See http://www.blackrock.com/corporate/en-us/compliance/email-disclaimers for further information. Please refer to http://www.blackrock.com/corporate/en-us/compliance/privacy-policy for more information about BlackRock’s Privacy Policy. For a list of BlackRock's office addresses worldwide, see http://www.blackrock.com/corporate/en-us/about-us/contacts-locations. © 2018 BlackRock, Inc. All rights reserved.
