AlterQuery  multidimensional (children 2)
 ExpressionList (children 1)
  AlterCommand ADD_COLUMN (children 1)
   ColumnDeclaration t (children 1)
    DataType Tuple (children 1)
     ExpressionList (children 3)
      DataType String
      DataType Array (children 1)
       ExpressionList (children 1)
        DataType Nullable (children 1)
         ExpressionList (children 1)
          DataType String
      DataType Tuple (children 1)
       ExpressionList (children 2)
        DataType UInt32
        DataType Date
 Identifier multidimensional