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https://issues.apache.org/jira/browse/ARROW-11419?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17273910#comment-17273910
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Antoine Pitrou commented on ARROW-11419:
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It seems the Java doesn't do this either, at least by doing a quick grep over
the sources.
> [C++] DICTIONARY_REPLACEMENT neither read nor written
> -----------------------------------------------------
>
> Key: ARROW-11419
> URL: https://issues.apache.org/jira/browse/ARROW-11419
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Reporter: Antoine Pitrou
> Priority: Major
> Fix For: 4.0.0
>
>
> The IPC format has a feature field DICTIONARY_REPLACEMENT to advertise the
> use of dictionary replacement but it is not emitted by the IPC writer, even
> if dictionary replacement occurred.
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