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From "Russell Jurney (JIRA)" <j...@apache.org>
Subject [jira] Created: (PIG-1420) Make CONCAT act on all fields of a tuple, instead of just the first two fields of a tuple
Date Fri, 14 May 2010 22:57:43 GMT
Make CONCAT act on all fields of a tuple, instead of just the first two fields of a tuple
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                 Key: PIG-1420
                 URL: https://issues.apache.org/jira/browse/PIG-1420
             Project: Pig
          Issue Type: Improvement
          Components: impl
    Affects Versions: 0.8.0
            Reporter: Russell Jurney
             Fix For: 0.7.0


org.apache.pig.builtin.CONCAT (which acts on DataByteArray's internally) and org.apache.pig.builtin.StringConcat
(which acts on Strings internally), both act on the first two fields of a tuple.  This results
in ugly nested CONCAT calls like:

CONCAT(CONCAT(A, ' '), B)

The more desirable form is:

CONCAT(A, ' ', B)

This change will be backwards compatible, provided that no one was relying on the fact that
CONCAT ignores fields after the first two in a tuple.  This seems a reasonable assumption
to make, or at least a small break in compatibility for a sizable improvement.

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