SPI_getvalue — return the string value of the specified column
char * SPI_getvalue(HeapTuplerow
, TupleDescrowdesc
, intcolnumber
)
SPI_getvalue
returns the string representation
of the value of the specified column.
The result is returned in memory allocated using
palloc
. (You can use
pfree
to release the memory when you don't
need it anymore.)