Description
int 
sesam_field_name ( string result_id, int index )
     Returns the name of a field (i.e., the column name) in the result
     set, or FALSE on error.
    
     For "immediate" queries, or for dynamic columns, an empty string
     is returned.
    
Note: 
      The column index is zero-based, not one-based as in SESAM.
     
     See also: sesam_field_array(). It provides an
     easier interface to access the column names and types, and allows
     for detection of "multiple fields".