Stéphane Dupille ha scritto:
Hi ! "Ricardo J.C.Coelho" <pulsar@truenet-ce.com.br> writes:
> Just for PgSQL's development group think about....
> I made a mistake typing a query that generates a strange result
> (Very strange).
> The query: select text('12345678'::float8);
> It returns a date in datetime format !!!!!!
I didn't found any function of name "text" that converts
float8 to text. So I think Postgres made an implicit cast of the data
to datatime. So: String->Float8->DateTime->Text. Stranger : I didn't
found any function to cinvert float to text !
> If you use: select ('12345678'::float8)::text; everything runs well.
Here, you made an explicit cast, without the use of any
function. So your data is casted well.
Hope this helps !
This seems like a bug, because there's no a text(float8) built-in function.hygea=> select text('12345678'::float8);
text
----------------------
2000-05-22 23:21:18+02
but if you create the function like:
create function text(float8) returns text as
'
begin
return $1;
end;
' language 'plpgsql';
CREATE
select text('12345678.2'::float8);
text
----------
12345678.2
(1 row)
- Jose' -
And behold, I tell you these things that ye may learn wisdom; that ye may
learn that when ye are in the service of your fellow beings ye are only
in the service of your God. - Mosiah 2:17 -