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https://issues.apache.org/jira/browse/PIG-2051?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Woody Anderson updated PIG-2051:
Attachment: 2051.patch
this patch propagates type information more correctly (though not
recursive/fully) to the pushProjection call.
Mainly, this means putting type information into via subfields into map types.
It doesn't fully descend and provide type information for subfields of
subfields etc. But, provided fields have the correct type information rather
than DataType.BYTEARRAY
new LogicalSchema column prune code does not preserve type information for
map subfields
Key: PIG-2051
URL: https://issues.apache.org/jira/browse/PIG-2051
Project: Pig
Issue Type: Bug
Components: impl
Affects Versions: 0.10
Reporter: Woody Anderson
Assignee: Woody Anderson
Fix For: 0.10
Attachments: 2051.patch
current impl of ColumnPruneVisitor.visit ignores field type info and passes
type BYTEARRAY for all map fields.
the corrected type is pretty easy to fill in, especially since map field info
is only attempted 1 level deep.
i came across this b/c i utilize the type information in the pushProjection
call, and this was previously of the 'correct' type information, the change
over to LogicalSchema caused a regression.
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