2 42.3. Data Values in PL/Tcl #
4 The argument values supplied to a PL/Tcl function's code are simply the
5 input arguments converted to text form (just as if they had been
6 displayed by a SELECT statement). Conversely, the return and
7 return_next commands will accept any string that is acceptable input
8 format for the function's declared result type, or for the specified
9 column of a composite result type.