Re: ERROR: Memory exhausted in AllocSetAlloc(909324558)

darcy@druid.net (D'Arcy J.M. Cain) writes:
>> heap_formtuple is for constructing a tuple from scratch.  It sounds like
>> you should be using heap_modifytuple instead.

> But I am using SPI_modifytuple().  The rest came from tracing that
> function.

Hm.  Looks like the author of SPI_modifytuple didn't realize he could
use heap_modifytuple :-(.  But he is correctly extracting the old data.
I don't see anything wrong there, assuming that you are passing a
relation descriptor that matches the original tuple.
        regards, tom lane