I have written several postgres extensions in the past. However,currently I am having difficulty with an extension returning a tuple. Basically I want to return a tuple containing an integer and a very large variable length string. I created a type on Postgres that contains two fields (int4 and text). Originally, I was using buildTupleFromCStrings(). My function works fine and everything is cool, until my string becomes large. At that point NULL is returned in my tuple (I believe that this is because Postgres is using char type conversion on the string). So, my question is how can I return the large string as part of my tuple? Is there a Datum function that will allow me to convert a text* into a datum? Any help or a push in the right direction would be appreciated.
Thanks,
Rob.