sorting on map-value fails if map-value is not of bytearray type
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Key: PIG-999
URL: https://issues.apache.org/jira/browse/PIG-999
Project: Pig
Issue Type: Bug
Reporter: Thejas M Nair
When query execution plan is created by pig, it assumes the type to be
bytearray because there is no schema information associated with map fields.
But at run time, the loader might return the actual type. This results in a
ClassCastException.
This issue points to the larger issue of the way pig is handling types for
map-value.
This issue should be fixed in the context of revisiting the frontend logic and
pig-latin semantics.
This is related to PIG-880 . The patch in PIG-880 changed PigStorage to always
return bytearray for map values to work around this, but other loaders like
BinStorage can return the actual type causing this issue.
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