Mention extra_float_digits in floating point docs

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

Commit: 8455b70fee2ddaabb5f76ed3aef11c97cbd10507
Author: Alvaro Herrera <alvherre@alvh.no-ip.org>
Date: 2013-07-02T17:14:02Z
Releases: 9.1.10
Mention extra_float_digits in floating point docs

Make it easier for readers of the FP docs to find out about possibly
truncated values.

Per complaint from Tom Duffey in message
F0E0F874-C86F-48D1-AA2A-0C5365BF5118@trillitech.com

Author: Albe Laurenz
Reviewed by: Abhijit Menon-Sen

Files

PathChange+/−
doc/src/sgml/config.sgml modified +1 −0
doc/src/sgml/datatype.sgml modified +11 −0