Re: INT8 / float casting question

On 10/31/2014 07:58 AM, Filip Rembiałkowski wrote:
> psql.bin (9.3.4, server 9.3.5)
> Type "help" for help.
>
> dev=# select (2^63-1)::INT8;
> ERROR:  bigint out of range
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> Does it HAVE to be so?

No, figured it out:

test=# select ((2^63-1)::numeric);       numeric
--------------------- 9223372036854780000

is rounding up.

To get what you want:

test=# select (2^63::numeric-1)::int8;        int8
--------------------- 9223372036854775807
(1 row)


>
>
> http://en.wikipedia.org/wiki/9223372036854775807
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> Thanks
> Filip
>
>


-- 
Adrian Klaver
adrian.klaver@aklaver.com