Re: BUG #14026: Problem to convert number to real - Mailing list pgsql-bugs

From John R Pierce
Subject Re: BUG #14026: Problem to convert number to real
Date
Msg-id 56EB3B5C.3020809@hogranch.com
Whole thread Raw
In response to BUG #14026: Problem to convert number to real  (carlos_penteado@yahoo.com.br)
List pgsql-bugs
On 3/16/2016 1:07 PM, carlos_penteado@yahoo.com.br wrote:
> SELECT 109048.96::float, 0.96::float
> RETURNS
> 109048.96;0.96
> but
> SELECT 109048.96::real, 0.96::real
> RETURNS
> 109049;0.96


float with unspecified precision is treated as double precision. real is
by definition single precision, which is only accurate to around 6 digits.

see http://www.postgresql.org/docs/current/static/datatype-numeric.html



--
john r pierce, recycling bits in santa cruz

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