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https://issues.apache.org/jira/browse/PIG-5201?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Koji Noguchi updated PIG-5201:
------------------------------
Attachment: pig-5201-v04.patch
Uploading a patch that now expands FLATTEN(null-bag) to null * num_fields and
FLATTEN(null-map) to 2 fields.
I still need to look at PIG-2537 and its patch to understand Daniel's approach.
> Null handling on FLATTEN
> ------------------------
>
> Key: PIG-5201
> URL: https://issues.apache.org/jira/browse/PIG-5201
> Project: Pig
> Issue Type: Bug
> Reporter: Koji Noguchi
> Assignee: Koji Noguchi
> Priority: Minor
> Fix For: 0.18.0
>
> Attachments: pig-5201-v00-testonly.patch, pig-5201-v01.patch,
> pig-5201-v02.patch, pig-5201-v03.patch, pig-5201-v04.patch
>
>
> Sometimes, FLATTEN(null) or FLATTEN(bag-with-null) seem to produce incorrect
> results.
> Test code/script to follow.
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