AlterQuery  02483_substitute_udf (children 2)
 ExpressionList (children 1)
  AlterCommand MODIFY_COLUMN (children 1)
   ColumnDeclaration number (children 2)
    DataType UInt32
    Function 02483_plustwo (children 1)
     ExpressionList (children 1)
      Identifier id
 Identifier 02483_substitute_udf