Jonathan Coveney created PIG-3122:
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Summary: Operators should not implicitly become reserved
Key: PIG-3122
URL: https://issues.apache.org/jira/browse/PIG-3122
Project: Pig
Issue Type: Bug
Reporter: Jonathan Coveney
Assignee: Jonathan Coveney
As a byproduct of how ANTLR lexes things, whenever we introduce a new operator
(RANK, CUBE, and any special keyword really) we are implicitly introducing a
reserved word that can't be used for relations, columns, etc (unless give to us
by the framework, as in the case of group).
The following, for example, fails:
{code}
a = load 'foo' as (x:int);
a = foreach a generate x as rank;
{code}
I'll include a patch to fix this essentially by whitelisting tokens. I
currently just whitelist cube, rank, and group. We can add more as people want
them? Can anyone think of reasonable ones they'd like to add?
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