SPI_getbinval — return the binary value of the specified column
Datum SPI_getbinval(HeapTuplerow, TupleDescrowdesc, intcolnumber, bool *isnull)
SPI_getbinval returns the value of the
specified column in the internal form (as type Datum).
This function does not allocate new space for the datum. In the case of a pass-by-reference data type, the return value will be a pointer into the passed row.
HeapTuple rowinput row to be examined
TupleDesc rowdescinput row description
int colnumbercolumn number (count starts at 1)
bool * isnullflag for a null value in the column
The binary value of the column is returned. The variable pointed
to by isnull is set to true if the column is
null, else to false.
SPI_result is set to
SPI_ERROR_NOATTRIBUTE on error.