Can't use WITH in a PERFORM query in PL/pgSQL?

PostgreSQL 9.0.1

It seems that PostgreSQL doesn't understand the WITH construct when used in=
 a PERFORM query inside PL/pgSQL functions and code blocks:

Example:

do
$$begin
with A as (select 1 as foo)
perform foo from A;
end$$;

    syntax error at or near "perform"

do
$$begin
with A as (select 1 as foo)
select foo from A;
end$$;

    query has no destination for result data

The only workaround that I can think of is to use a dummy variable to captu=
re the query result. This has to be done even when the query doesn't have a=
 result (as when calling a function returning void).

do
$$declare
dummy record;
begin
with A as (select 1 as foo)
select foo into dummy from A;
end$$;


Dmitry Epstein | Developer
Allied Testing
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