InsertQuery   (children 2)
 Identifier test
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 1)
    ExpressionList (children 1)
     Function CAST (children 1)
      ExpressionList (children 2)
       Function tuple (children 1)
        ExpressionList (children 2)
         Literal UInt64_1
         Literal UInt64_2
       Literal \'Tuple(a UInt32, b UInt32)\'
