AlterQuery  t_ttl_non_deterministic (children 2)
 ExpressionList (children 1)
  AlterCommand MODIFY_COLUMN (children 1)
   ColumnDeclaration B (children 2)
    DataType Int64
    Function plus (children 1)
     ExpressionList (children 2)
      Function now (children 1)
       ExpressionList
      Function toIntervalMonth (children 1)
       ExpressionList (children 1)
        Literal UInt64_1
 Identifier t_ttl_non_deterministic
