| Postgres-XC 1.0.4 Documentation | ||||
|---|---|---|---|---|
| Prev | Fast Backward | Chapter 39. PL/Tcl - Tcl Procedural Language | Fast Forward | Next |
Note: The following description applies both to Postgres-XC and PostgreSQL if not described explicitly.
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.