Optimize CONCATENATE transform.
authorStas Boukarev <stassats@gmail.com>
Sat, 30 Nov 2013 16:52:11 +0000 (20:52 +0400)
committerStas Boukarev <stassats@gmail.com>
Sat, 30 Nov 2013 16:52:26 +0000 (20:52 +0400)
Avoid redundant type-checks, avoid passing unnecessary arguments to
REPLACE.


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