Variables inside DO block not detected

[timvandam]

Describe the bug Variables inside of DO blocks (psql) are not detected, but it does compile just fine.

Expected behavior It should give the correct type for the query by detecting the variable

Test case

/* @name createNamedSequenceIfNotExists */
DO LANGUAGE plpgsql $$
BEGIN
    EXECUTE FORMAT('CREATE SEQUENCE IF NOT EXISTS %I', :sequenceName!);
END;
$$;

It generates the type

export type ICreateNamedSequenceIfNotExistsParams = void;