| From: | Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com> |
|---|---|
| To: | Filip Rembiałkowski <filip(dot)rembialkowski(at)gmail(dot)com>, Community PostgreSQL <pgsql-sql(at)postgresql(dot)org> |
| Subject: | Re: INT8 / float casting question |
| Date: | 2014-10-31 15:45:47 |
| Message-ID: | 5453AEAB.5020001@aklaver.com |
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| Thread: | |
| Lists: | pgsql-sql |
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
>
>
>
>
>
> 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
>
>
>
> Thanks
> Filip
>
>
--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com
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