Re: understanding Datum -> char * -> Datum conversions

Louis-David Mitterrand <cunctator@apartia.ch> writes:
>> Casting doesn't do it.  Use text_out() to produce a null-terminated C
>> string from a text Datum, and use text_in() to create a new text Datum
>> after you've modified the string.

> I can't find these functions anywhere in the included .h files. Where
> should I look?

Mea culpa, they're spelled "textout" and "textin".  See
utils/builtins.h.
        regards, tom lane