Antoine Pitrou created ARROW-13479:
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Summary: [Format] Make requirement around dense union offsets less
ambiguous
Key: ARROW-13479
URL: https://issues.apache.org/jira/browse/ARROW-13479
Project: Apache Arrow
Issue Type: Task
Components: Format
Reporter: Antoine Pitrou
Fix For: 6.0.0
Currently, the spec states that dense union offsets for each child array must
be "in order / increasing". There is an ambiguity: should they be strictly
increasing, or are equal values supported?
The C++ implementation currently considers that equal offsets are acceptable.
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