Roee Shlomo created ARROW-14179:
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Summary: [C++] Import/Export of UnionArray in C data interface has
wrong buffer count
Key: ARROW-14179
URL: https://issues.apache.org/jira/browse/ARROW-14179
Project: Apache Arrow
Issue Type: Bug
Components: C++
Reporter: Roee Shlomo
The C Data Interface implementation for UnionArray includes a validity buffer
as the first buffer. However, union arrays should have no validity buffer
according to the specification ([Arrow Columnar Format — Apache Arrow
v5.0.0|https://arrow.apache.org/docs/format/Columnar.html#buffer-listing-for-each-layout])
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