Ji Liu created ARROW-7467:
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Summary: [Java] ComplexCopier does incorrect copy for Map nullable
info
Key: ARROW-7467
URL: https://issues.apache.org/jira/browse/ARROW-7467
Project: Apache Arrow
Issue Type: Bug
Components: Java
Reporter: Ji Liu
Assignee: Ji Liu
The {{MapVector}} and its 'value' vector are nullable, and its {{structVector}}
and 'key' vector are non-nullable.
However, the {{MapVector}} generated by ComplexCopier has all nullable fields
which is not correct.
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