[jira] [Created] (ARROW-9222) [Format][Proposal] Remove validity bitmap from Union types

[Wes McKinney (Jira)]

Wes McKinney created ARROW-9222:
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             Summary: [Format][Proposal] Remove validity bitmap from Union types
                 Key: ARROW-9222
                 URL: https://issues.apache.org/jira/browse/ARROW-9222
             Project: Apache Arrow
          Issue Type: Improvement
          Components: Format
            Reporter: Wes McKinney
            Assignee: Wes McKinney
             Fix For: 1.0.0


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