From: | Adrian Klaver <adrian(dot)klaver(at)gmail(dot)com> |
---|---|
To: | Kevin Grittner <kgrittn(at)ymail(dot)com> |
Cc: | Joanne Salerno - NOAA Federal <joanne(dot)salerno(at)noaa(dot)gov>, pgsql <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: Postgres 9.2.4 "Double Precision" Precision |
Date: | 2013-09-14 16:57:41 |
Message-ID: | 52349585.7050507@gmail.com |
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Thread: | |
Lists: | pgsql-general |
On 09/14/2013 08:51 AM, Kevin Grittner wrote:
> Adrian Klaver <adrian(dot)klaver(at)gmail(dot)com> wrote:
>
>> create table float_test (id int, f_fld double precision);
>> insert into float_test values (1, 6.31);
>> insert into float_test values (2, 6.32);
>> select * from float_test ;
>>
>> id | f_fld
>> ----+-------
>> 1 | 6.31
>> 2 | 6.32
>> (2 rows)
>
> If, instead of those inserts I use these:
>
> insert into float_test values (1, '6.31');
> insert into float_test values (1, '6.32');
> insert into float_test values (1, '6.32'::double precision);
> insert into float_test values (1, '6.32'::real);
>
> I get:
>
> id | f_fld
> ----+------------------
> 1 | 6.31
> 1 | 6.32
> 1 | 6.32
> 1 | 6.32000017166138
> (4 rows)
>
> Apparently the value is being treated as a real value somewhere.
Interesting, more grist for the mill.
>
> --
> Kevin Grittner
> EDB: http://www.enterprisedb.com
> The Enterprise PostgreSQL Company
>
>
--
Adrian Klaver
adrian(dot)klaver(at)gmail(dot)com
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