Documentazione di PostgreSQL 9.0 > Programmazione del server > PL/Tcl - Tcl Procedural Language > Data Values in PL/Tcl
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40.3. Data Values in PL/Tcl

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.

Documentazione di PostgreSQL 9.0 > Programmazione del server > PL/Tcl - Tcl Procedural Language > Data Values in PL/Tcl
PrecedentePL/Tcl Functions and ArgumentsGlobal Data in PL/TclSuccessivo