"Stefan Hoffmann" <hoffst@maxinf.de> writes:
> some specific values such as 20048223 or -25771373 can't be stored in float4
> . they are replaced by 20048224 and
> -25771372 when inserted or updated in float4 .
> is this a problem of 7.4 or caused by "inexact" float4 ?
The latter. On most machines float4 is only good for about six
significant digits, and you're expecting eight ...
regards, tom lane