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https://issues.apache.org/jira/browse/PIG-2068?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13033375#comment-13033375
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Corinne Chandel commented on PIG-2068:
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Documentation updated.
Fix will be included in the GA patch for PIG-1772.
Thanks for review Thejas!
> documentation of union onschema restrictions need to to be updated
> ------------------------------------------------------------------
>
> Key: PIG-2068
> URL: https://issues.apache.org/jira/browse/PIG-2068
> Project: Pig
> Issue Type: Bug
> Components: documentation
> Affects Versions: 0.9.0
> Reporter: Thejas M Nair
> Assignee: Corinne Chandel
> Fix For: 0.9.0
>
>
> The following requirement mentioned under union-onschema section is no longer
> applicable -
> {code}
> The data type for columns with same name in different input schemas should be
> compatible:
> Numeric types are compatible, and if column having same name in different
> input schemas have different numeric types, an implicit conversion will
> happen.
> Bytearray type is considered compatible with all other types, a cast will
> be added to convert to other type.
> Bags or tuples having different inner schema are considered incompatible.
> {code}
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