SPI_FNAME(3)             PostgreSQL 16.2 Documentation            SPI_FNAME(3)

NAME
       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.

PostgreSQL 16.2                      2024                         SPI_FNAME(3)