SPI_fname -- determine the column name for the specified column number
Synopsis
char * SPI_fname(TupleDesc rowdesc, int colnumber)
Description
SPI_fname
returns a copy of the column name of the
specified column. (You can use
pfree
to
release the copy of the name when you don't need it anymore.)
Arguments
TupleDesc
rowdesc
input row description
int
colnumber
column number (count starts at 1)
Return Value
The column name;
NULL
if
colnumber
is out of range.
SPI_result
set to
SPI_ERROR_NOATTRIBUTE
on error.