Re: [GENERAL] immutable functions and enumerate type casts in indexes

Edoardo Panfili <edoardo@aspix.it> writes:
> labelDatum = DirectFunctionCall1(enum_out,datumIbrido);
> label = (char *) DatumGetPointer(labelDatum);

Just FYI, preferred style for the second line would be

label = DatumGetCString(labelDatum);

Nearly all standard data types have DatumGetFoo and FooGetDatum
macros to hide the conversion details (even if it's only a cast).

regards, tom lane

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