SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function quantilesExactWeightedArray (children 2)
     ExpressionList (children 2)
      Function range (children 1)
       ExpressionList (children 1)
        Literal UInt64_10
      Function range (children 1)
       ExpressionList (children 1)
        Literal UInt64_10
     ExpressionList (children 1)
      Literal Float64_0.5