Add scale(numeric)

Alvaro Herrera <alvherre@alvh.no-ip.org>

Commit: abb1733922f3ff17a514499883a549f8bd03af44
Author: Alvaro Herrera <alvherre@alvh.no-ip.org>
Date: 2016-01-05T22:02:13Z
Releases: 9.6.0
Add scale(numeric)

Author: Marko Tiikkaja

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