SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function equals (children 1)
     ExpressionList (children 2)
      Function positionUTF8 (children 1)
       ExpressionList (children 3)
        Literal \'你\'
        Literal \'\'
        Literal UInt64_3
      Function positionUTF8 (children 1)
       ExpressionList (children 3)
        Function materialize (children 1)
         ExpressionList (children 1)
          Literal \'你\'
        Function materialize (children 1)
         ExpressionList (children 1)
          Literal \'\'
        Function materialize (children 1)
         ExpressionList (children 1)
          Literal UInt64_3