Bryan Cutler created ARROW-13076:
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Summary: [Java] Enable ExtensionType to use StructVector and
UnionVector for underlying storage
Key: ARROW-13076
URL: https://issues.apache.org/jira/browse/ARROW-13076
Project: Apache Arrow
Issue Type: Improvement
Components: Java
Reporter: Bryan Cutler
Assignee: Bryan Cutler
Currently, an ExtensionTypeVector has a type constraint for the underlying
storage to extend BaseValueVector. StructVector, UnionVector and
DenseUnionVector do not extend this base class.
After ARROW-13044, Union vectors will extend the ValueVector interface and the
extension vector type constrain could be relaxed to this interface to allow the
above vector types to be used.
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