SPI_fname
SPI_fname
SPI_fname - determine the column name for the specified column number
Synopsis
char * SPI_fname(TupleDescrowdesc, intcolnumber)
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
-
TupleDescrowdesc -
input row description
-
intcolnumber -
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.