SPI_getbinval
SPI_getbinval
SPI_getbinval - return the binary value of the specified column
Synopsis
Datum SPI_getbinval(HeapTuplerow
, TupleDescrowdesc
, intcolnumber
, bool *isnull
)
Description
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.
Arguments
-
HeapTuple
row
-
input row to be examined
-
TupleDesc
rowdesc
-
input row description
-
int
colnumber
-
column number (count starts at 1)
-
bool *
isnull
-
flag for a null value in the column
Return Value
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.