Q: SQL "LIST" literal

Hi ! How do I specify (syntax) a list literal for the following collection type LIST ( NVARCHAR(73) NOT NULL ) The motivation behind my question is that I want to call a SPL procedure Flush( LIST ( NVARCHAR(73) NOT NULL ) ) I might add that there is also a Flsuh() defined without any paramters. When I call the procedure like EXECUTE PROCEDURE Flush( "LIST{ 'some string'::NVARCHAR(73) }" )the execution fails because of IUS is not able to "resolve Flush". I tried various syntactic alternatives for above literal but neither would do. However, if I define another stored procedure like CREATE PROCEDURE FlushWrapper() DEFINE theList LIST ( NVARCHAR(73) NOT NULL ); LET theList = "LIST{ 'some string'::NVARCHAR(73) }"; EXECUTE PROCEDURE Flush(theList);END PROCEDURE; everything works fine. Any ideas ? TIA, Chris