# Get this entry as `Int`
	#
	# If the Sqlite type of this entry is not an integer, it will be `CAST` to
	# integer. If `null`, returns 0.
	#
	# require: `self.statement.is_open`
	fun to_i: Int
	do
		assert statement_closed: statement.is_open

		return statement.native_statement.column_int(index)
	end