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https://issues.apache.org/jira/browse/ARROW-5973?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated ARROW-5973:
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Labels: pull-request-available (was: )
> [Java] Variable width vectors' get methods should return null when the
> underlying data is null
> ----------------------------------------------------------------------------------------------
>
> Key: ARROW-5973
> URL: https://issues.apache.org/jira/browse/ARROW-5973
> Project: Apache Arrow
> Issue Type: Bug
> Components: Java
> Reporter: Liya Fan
> Assignee: Liya Fan
> Priority: Major
> Labels: pull-request-available
>
> For variable-width vectors (VarCharVector and VarBinaryVector), when the
> validity bit is not set, it means the underlying data is null, so the get
> method should return null.
> However, the current implementation throws an IllegalStateException whenÂ
> NULL_CHECKING_ENABLED is set, or returns an empty array when the flag is
> clear.
> Maybe the purpose of this design is to be consistent with fixed-width
> vectors. However, the scenario is different: fixed-width vectors (e.g.
> IntVector) throw an IllegalStateException, simply because the primitive types
> are non-nullable.
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