Brian Hulette created ARROW-3425:
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Summary: [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
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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