Re: I can't get row type from tuple (SPI) - Mailing list pgsql-hackers

"Pavel Stehule" <pavel.stehule@hotmail.com> writes:
> rettupdesc = lookup_rowtype_tupdesc(rettype,0);

This is wrong --- if you don't know what typmod to use, *always* pass -1
not 0.  (I suspect that rettype is RECORD and that -1 would have
resulted in a NULL result.)

It seems like SPI is missing a needed function: it should have an
SPI_gettypmod to go along with SPI_gettypeid.  This would probably
give you the correct typmod to pass to lookup_rowtype_tupdesc here.
        regards, tom lane