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https://issues.apache.org/jira/browse/ARROW-1497?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wes McKinney reassigned ARROW-1497:
-----------------------------------
Assignee: Li Jin
> [Java] JsonFileReader doesn't set value count for some vectors
> --------------------------------------------------------------
>
> Key: ARROW-1497
> URL: https://issues.apache.org/jira/browse/ARROW-1497
> Project: Apache Arrow
> Issue Type: Bug
> Reporter: Li Jin
> Assignee: Li Jin
> Labels: pull-request-available
> Fix For: 0.8.0
>
>
> Currently, in complex types, JsonFileReader only sets value count for
> NullableMapType by an instance check, this is error prone and cause issues
> with reading other complex types:
> https://github.com/apache/arrow/blob/master/java/vector/src/main/java/org/apache/arrow/vector/file/json/JsonFileReader.java#L269
> We should have a better way to do this.
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