Should support 'null' as a constant
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Key: PIG-385
URL: https://issues.apache.org/jira/browse/PIG-385
Project: Pig
Issue Type: New Feature
Components: impl
Affects Versions: types_branch
Reporter: Alan Gates
Priority: Minor
Fix For: types_branch
It would be nice to be able to do things like:
B = foreach A generate $0 > 0 ? $0 : null;
but right now null is not allowed as a constant. This null constant should be
allowed anywhere an expression would be, and should be castable (that is
(int)null).
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