SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function finalizeAggregation (children 1)
     ExpressionList (children 1)
      Function CAST (children 1)
       ExpressionList (children 2)
        Function unhex (children 1)
         ExpressionList (children 1)
          Literal \'FFFFFFF014181056F38010000000000000001FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF014181056F38010000000000000001FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF\'
        Literal \'AggregateFunction(sequenceNextNode(\\\'forward\\\', \\\'head\\\'), DateTime, Nullable(String), UInt8, Nullable(UInt8))\'
   Set