SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function equals (children 1)
     ExpressionList (children 2)
      Function xxHash64 (children 1)
       ExpressionList (children 1)
        Function tuple (children 1)
         ExpressionList (children 4)
          Literal \'a\'
          Literal Array_[UInt64_1, UInt64_2, UInt64_3]
          Literal UInt64_4
          Function tuple (children 1)
           ExpressionList (children 4)
            Literal UInt64_4
            Literal Array_[\'foo\', \'bar\']
            Literal UInt64_1
            Literal Tuple_(UInt64_1, UInt64_2)
      Function toUInt64 (children 1)
       ExpressionList (children 1)
        Literal UInt64_3521288460171939489