AlterQuery  test_rlp (children 2)
 ExpressionList (children 1)
  AlterCommand ADD_COLUMN (children 1)
   ColumnDeclaration c (children 2)
    DataType Int32
    Function plus (children 1)
     ExpressionList (children 2)
      Identifier b
      Literal UInt64_10
 Identifier test_rlp
