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SPI_getbinval
Name
SPI_getbinval -- return the binary value
of the specified column
Synopsis
Datum SPI_getbinval(HeapTuple row, TupleDesc rowdesc, int colnumber,
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.