On mán, 2006-11-27 at 15:54 +0100, Bart Degryse wrote:
> Hi gnari,
> I suppose your statement
> test=# select '\x'||'65';
> is done on some command line interface. I don't have that. I can only
> use some client program. I'm using EMS SQL Manager 2007 and pgAdmin
> III 1.3
> None of them accepts your statement.
> My point is that in my first version of the function ( charset :=
> charset || '\x65'; ) a unicode hex value for the letter e is stored
> in charset.
my point was that '\x65' as a literal
is read as 'e', but '\\x' || '65' is
just the concatation of 2 2-char varchars
> When I try to do the same for a range of hex values ( FOR i IN
> 101..101 LOOP charset := charset || '\x' || to_hex(i); )
you might be able to do what you want with
set_byte() and encode().
CREATE OR REPLACE FUNCTION myfunction() RETURNS varchar AS
$x$ DECLARE x bytea := ' '; BEGIN FOR i in 101..105 LOOP x:=set_byte(x,i-101,i); END LOOP; RETURN
encode(x,''escape'');END;
$x$LANGUAGE 'plpgsql';
select myfunction();
gnari
