Details
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Improvement
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Status: Resolved
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Major
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Resolution: Fixed
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1.5.0, 1.6.0, 1.7.0
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None
Description
As columnar format, parquet currently does not support empty struct/group without leaves. We should throw when constructing an empty GroupType to give a clear message.
Attachments
Issue Links
- is related to
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PARQUET-363 Cannot construct empty MessageType for ReadContext.requestedSchema
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- Resolved
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- relates to
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HIVE-11611 A bad performance regression issue with Parquet happens if Hive does not select any columns
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- Reopened
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- links to