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https://issues.apache.org/jira/browse/PIG-4696?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cheolsoo Park updated PIG-4696:
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Status: Patch Available (was: Open)
> Empty map returned by a streaming_python udf wrongly contains a null key
> ------------------------------------------------------------------------
>
> Key: PIG-4696
> URL: https://issues.apache.org/jira/browse/PIG-4696
> Project: Pig
> Issue Type: Bug
> Components: impl
> Affects Versions: 0.15.0
> Reporter: Cheolsoo Park
> Assignee: Cheolsoo Park
> Priority: Minor
> Attachments: PIG-4696.1.patch
>
>
> To reproduce, please run the following query-
> {code}
> b = FOREACH a GENERATE (map[])udfs.empty_dict();
> DUMP b;
> {code}
> where empty_dict() is a Python udf-
> {code}
> @outputSchema("map_out: []")
> def empty_dict():
> return {}
> {code}
> This returns {{([])}} in jython while {{(\[null#\])}} in streaming_python.
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