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https://issues.apache.org/jira/browse/ARROW-3425?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated ARROW-3425:
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    Labels: pull-request-available  (was: )

> [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
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: JS-0.4.0
>
>
> 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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