# The result of a given query
class PGResult
  private var pg_result: NativePGResult

  # Clears the result object and frees the memory allocated to the underlying C struct
  fun clear do pg_result.clear

  # Returns the number of rows in the query result
  fun ntuples:Int do return pg_result.ntuples

  # Returns the number of columns in each row of the query result
  fun nfields:Int do return pg_result.nfields

  # Returns the ExecStatusType of a result
  fun is_ok:Bool do return pg_result.status.is_ok

  # Returns the field name of a given `column_number`
  fun fname(column_number:Int):String do return pg_result.fname(column_number)

  # Returns the column number associated with the `column_name`
  fun fnumber(column_name:String):Int do return pg_result.fnumber(column_name)

  # Returns a single field value of one row of the result at `row_number`, `column_number`
  fun value(row_number:Int, column_number:Int):String  do return pg_result.value(row_number, column_number)

  # Tests wether a field specified by the `row_number` and `column_number` is null.
  fun is_null(row_number:Int, column_number: Int): Bool do return pg_result.is_null(row_number, column_number)
end