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https://issues.apache.org/jira/browse/PIG-3342?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cheolsoo Park updated PIG-3342:
-------------------------------
Attachment: PIG-3342.patch
Attached is a patch that allows conditions in when branches. I added two test
cases to TestCase to verify the new syntax.
ant test -Dtestcase=TestCase passes.
> Allow conditions in case statement
> ----------------------------------
>
> Key: PIG-3342
> URL: https://issues.apache.org/jira/browse/PIG-3342
> Project: Pig
> Issue Type: Improvement
> Components: parser
> Reporter: Cheolsoo Park
> Assignee: Cheolsoo Park
> Fix For: 0.12
>
> Attachments: PIG-3342.patch
>
>
> PIG-3268 added case statement support. But conditions are currently not
> allowed in when branches. For example,
> {code}
> CASE
> WHEN i % 5 == 0 THEN '5n'
> WHEN i % 5 == 1 THEN '5n+1'
> WHEN i % 5 == 2 THEN '5n+2'
> WHEN i % 5 == 3 THEN '5n+3'
> ELSE '5n+4'
> END
> {code}
> This is invalid now. However, it will be useful if it's allowed.
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