Re: strange type name in information_schema

So is there always an underscore prepended to the type name of an array ?
for example float[] would then be _float right ?

Best Regards
Dan S

2011/5/21 Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>

> Hello
>
> type "array of text" has name "_text"
>
> Regards
>
> Pavel Stehule
>
> 2011/5/21 Dan S <strd911(at)gmail(dot)com>:
> > Hi !
> >
> > I'm running "PostgreSQL 9.0.2, compiled by Visual C++ build 1500,
> 32-bit".
> >
> > I'm trying to get type information on functions out of
> information_schema.
> > When there is an array as input or output of a function I try to query
> > information_schema of the array type.
> >
> > In this case udt_name gives the type name _text why does it not give text
> ?
> >
> > Is this the right way to query the parameter types ?
> >
> > CREATE OR REPLACE FUNCTION test(ta text[]) RETURNS void AS $$
> > BEGIN
> > RETURN;
> > END;
> > $$ LANGUAGE plpgsql;
> >
> > select p.udt_name,p.data_type,*
> > from information_schema.routines r ,information_schema.parameters p
> > where r.routine_name = 'test'
> > and p.specific_name = r.specific_name
> > and p.specific_catalog=r.specific_catalog
> > and p.specific_schema=r.specific_schema
> >
> >
> > Best Regards
> > Dan S
> >
>