PostgreSQL 9.5.3 Documentation | |||
---|---|---|---|
Prev | Up | Chapter 41. PL/Tcl - Tcl Procedural Language | Next |
The argument values supplied to a PL/Tcl function's code are simply the input arguments converted to text form (just as if they had been displayed by a SELECT statement). Conversely, the return command will accept any string that is acceptable input format for the function's declared return type. So, within the PL/Tcl function, all values are just text strings.