Re: proposal: plpgsql, solution for derivated types of parameters - Mailing list pgsql-hackers

From Itagaki Takahiro
Subject Re: proposal: plpgsql, solution for derivated types of parameters
Date
Msg-id AANLkTi=OwriY=+8GT_jDQ+MMpu4x7kk=gRQWv_Gw_ec4@mail.gmail.com
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In response to proposal: plpgsql, solution for derivated types of parameters  (Pavel Stehule <pavel.stehule@gmail.com>)
Responses Re: proposal: plpgsql, solution for derivated types of parameters
List pgsql-hackers
On Fri, Oct 8, 2010 at 3:08 PM, Pavel Stehule <pavel.stehule@gmail.com> wrote:
> I propose a following syntax:
>
> -- variable as element of some array
> DECLARE elementvar IS ELEMENT OF arrayvar;
> DECLARE elementvar IS ELEMENT OF arrayvar%type
>
> -- variable as array of some variable
> DECLARE arrayvar IS ARRAY OF varname;
> DECLARE arrayvar IS ARRAY OF varname%type
>
> This proposal doesn't introduce any new reserved keywords.

FYI, Oracle PL/SQL supports type declaration and array
variables are declare as the type.
 DECLARE   TYPE array_type_name IS {VARRAY | VARYING ARRAY} (size_limit)     OF element_type [NOT NULL];   a1
array_type_name;

"IS ARRAY OF" syntax is similar enough to PL/SQL, but is not compatible.

I'm not sure whether PL/SQL has "IS ELEMENT OF" variants.

-- 
Itagaki Takahiro


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