Submitted by: ded Rasta (dedrasta)

Connect with database as trusted user ( current_user = 'domain\user' ) and execute following code:

execute block
returns ( p01 timestamp )
AS
declare variable s varchar(2000);
begin
S = 'select current_timestamp from rdb$database';
execute statement (:S)
-- as user 'SYSDBA'
-- password 'masterkey'
on external data source 'inet4://LOCALHOST:3052/EMPLOYEE_FB3'
into :p01;
suspend;
end

Got following error:

Unsuccessful execution caused by system error that does not preclude successful execution of subsequent statements.
Internal error when using clumplet API: attempt to store 268 bytes in a clumplet with maximum size 255 bytes.

When uncommenting user and password parameters code executes without error