SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function sipHash64Keyed (children 1)
     ExpressionList (children 3)
      Function tuple (children 1)
       ExpressionList (children 2)
        Function toUInt64 (children 1)
         ExpressionList (children 1)
          Literal UInt64_0
        Function toUInt64 (children 1)
         ExpressionList (children 1)
          Literal UInt64_0
      Literal UInt64_1
      Literal \'test\'