Eric Wohlstadter created HIVE-19682:
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Summary: Provide option for GenericUDTFGetSplits to return only
schema metadata
Key: HIVE-19682
URL: https://issues.apache.org/jira/browse/HIVE-19682
Project: Hive
Issue Type: Improvement
Reporter: Eric Wohlstadter
Assignee: Eric Wohlstadter
For some uses cases it is necessary to know the output schema for a HiveQL
before executing the query. But there is no existing client API that provides
this information.
Hive JDBC doesn't provide the schema for parametric types in
{{ResultSetMetaData}}.
GenericUDTFGetSplits bundles the proper schema metadata with the fragments for
input splits. An option can be added to return only the schema metadata from
compilation, and the generation of input splits can be skipped.
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