How to call the afl_wrapper_generator procedure from a Standard SQLScript procedure

Hi all,

I am trying to create a standard SQL procedure to encapsulate the configuration, creation and calling of a PAL procedure.

The current version of this procedure is :

drop procedure OutlierDetection;

create procedure OutlierDetection(in  schemaName varchar(100),

                                                                                  in  currentDimension varchar(100))

          language SQLSCRIPT as

          insertInto varchar(100);

          var1 varchar(100);

          var2 varchar(100);

          var3 varchar(100);

begin

    exec 'set schema '||:schemaName;

    exec 'drop type DATA_T';

    exec 'create type DATA_T as table("'||:currentDimension||'" VARCHAR(100), SUM_MEASURE DOUBLE)';

 

          exec 'DROP TYPE OUTLIER_T';

          exec 'create TYPE OUTLIER_T AS TABLE("'||:currentDimension||'" VARCHAR(100),"OUTLIERS" INT)';

 

          exec 'DROP TYPE RESULT_T';

    exec 'CREATE TYPE RESULT_T AS TABLE("MEAN" DOUBLE,"SD" DOUBLE)';

   

    exec 'DROP TYPE CONTROL_T';

           exec 'CREATE TYPE CONTROL_T AS TABLE("Name" VARCHAR(100), "intArgs" INT, "doubleArgs" DOUBLE,"strArgs" VARCHAR(100))';

 

           DROP table SIGNATURE_TAB;

          create column table SIGNATURE_TAB("ID" INT,"TYPENAME" VARCHAR(100),"DIRECTION" VARCHAR(100));

 

          insertInto := :schemaName||'.DATA_T';

          insert into SIGNATURE_TAB values (1,:insertInto,'in');

 

     insertInto := :schemaName||'.CONTROL_T';

          insert into SIGNATURE_TAB values (2,:insertInto,'in');

 

          insertInto := :schemaName||'.RESULT_T';

          insert into SIGNATURE_TAB values (3,:insertInto,'out');

 

          insertInto := :schemaName||'.OUTLIER_T';

          insert into SIGNATURE_TAB values (3,:insertInto,'out');

 

          exec 'GRANT SELECT ON '||:schemaName||'.SIGNATURE_TAB to SYSTEM';

 

  call SYSTEM.afl_wrapper_eraser('PALOutlierDetectionProcedure');

 

call SYSTEM.afl_wrapper_generator('PALOutlierDetectionProcedure','AFLPAL','VARIANCETEST', SIGNATURE_TAB);

 

 

end;

 

call OutlierDetection('I301605', 'CITY');

 

but executing the alf_wrapper_generator here:

call SYSTEM.afl_wrapper_generator('PALOutlierDetectionProcedure','AFLPAL','VARIANCETEST', SIGNATURE_TAB);

throws an error saying :

SAP DBTech JDBC: [7] (at 1793): feature not supported: Only table variable is allowed in input parameter in a nested call:

could you please tell me what's wrong? and how am I supposed to call the afl_wrapper_generator procedure from within the standard procedure?

Thanks & regards

Mohamed Ali