2 43.2. Data Values in PL/Perl #
4 The argument values supplied to a PL/Perl function's code are simply
5 the 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 return type.
10 If this behavior is inconvenient for a particular case, it can be
11 improved by using a transform, as already illustrated for bool values.
12 Several examples of transform modules are included in the PostgreSQL