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https://issues.apache.org/jira/browse/ARROW-3425?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17660448#comment-17660448
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Rok Mihevc commented on ARROW-3425:
-----------------------------------
This issue has been migrated to [issue
#19751|https://github.com/apache/arrow/issues/19751] on GitHub. Please see the
[migration documentation|https://github.com/apache/arrow/issues/14542] for
further details.
> [JS] Programmatically created dictionary vectors don't get dictionary IDs
> -------------------------------------------------------------------------
>
> Key: ARROW-3425
> URL: https://issues.apache.org/jira/browse/ARROW-3425
> Project: Apache Arrow
> Issue Type: Bug
> Components: JavaScript
> Reporter: Brian Hulette
> Assignee: Brian Hulette
> Priority: Major
> Labels: pull-request-available
> Fix For: JS-0.4.0
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> This seems to be the cause of the test failures in
> https://github.com/apache/arrow/pull/2322
> Modifying {{getSingleRecordBatchTable}} to [generate its vectors
> programmatically|https://github.com/apache/arrow/pull/2322/files#diff-eb6e5955a00e92f7bebb15a03f8437d1R359]
> (rather than deserializing hard-coded JSON), causes the new round-trip tests
> added in https://github.com/apache/arrow/pull/2638 to fail. The root cause
> seems to be that an ID is never allocated for the generated dictionary.
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