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
-
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.