Re: strange type name in information_schema

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
>