CreateQuery column_modify_test (children 3)
 Identifier column_modify_test
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration id (children 1)
    DataType UInt64
   ColumnDeclaration val (children 1)
    DataType String
   ColumnDeclaration other_col (children 1)
    DataType UInt64
 Storage definition (children 3)
  Function MergeTree
  Identifier id
  Set