SPI_gettype — return the data type name of the specified column
char * SPI_gettype(TupleDescrowdesc
, intcolnumber
)
SPI_gettype
returns a copy of the data type name of the
specified column. (You can use pfree
to
release the copy of the name when you don't need it anymore.)
TupleDesc rowdesc
input row description
int colnumber
column number (count starts at 1)
The data type name of the specified column, or
NULL
on error. SPI_result
is
set to SPI_ERROR_NOATTRIBUTE
on error.