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https://issues.apache.org/jira/browse/FLINK-16220?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jark Wu reassigned FLINK-16220:
-------------------------------
Assignee: Benchao Li
> JsonRowSerializationSchema throws cast exception : NullNode cannot be cast to
> ArrayNode
> ---------------------------------------------------------------------------------------
>
> Key: FLINK-16220
> URL: https://issues.apache.org/jira/browse/FLINK-16220
> Project: Flink
> Issue Type: Bug
> Components: Formats (JSON, Avro, Parquet, ORC, SequenceFile)
> Reporter: Benchao Li
> Assignee: Benchao Li
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> It's because the object reuse. For the below schema:
> {code:java}
> create table sink {
> col1 int,
> col2 array<int>
> }{code}
> if col2 is null, then the reused object will be {{NullNode}}. for the next
> record, if it's not null, we will cast the reused object {{NullNode}} to
> {{ArrayNode}}, which will throw cast exception.
>
> cc [~jark] [~twalthr]
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