Re: Returning Vector of Pairs with a PostgreSQL C Extension Function

2018-08-27 14:40 GMT+02:00 TalGloz <glozmantal(at)gmail(dot)com>:

> It looks like changing the
>
> elements[0] = CStringGetDatum(localT1.c_str());
> elements[1] = CStringGetDatum(localT2.c_str());
>
> to:
>
> elements[0] = PointerGetDatum(cstring_to_text(localT1.c_str()));
> elements[1] = PointerGetDatum(cstring_to_text(localT2.c_str()));
>
> Solved the problem. If anyone thinks that there is a better way please tell
> me.
>

There is not better or worst way - you have to use just correct way, that
is one

There are already prepared macros

#define CStringGetTextDatum(s) PointerGetDatum(cstring_to_text(s))
#define TextDatumGetCString(d) text_to_cstring((text *) DatumGetPointer(d))

you can use it.

Regards

Pavel

> Best regards,
> Tal
>
>
>
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