SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function quantilesTDigestArray (children 2)
     ExpressionList (children 1)
      Function arrayResize (children 1)
       ExpressionList (children 3)
        Function arrayResize (children 1)
         ExpressionList (children 3)
          Literal Array_[Float64_inf]
          Literal UInt64_500000
          Literal Float64_inf
        Literal UInt64_1000000
        Literal UInt64_0
     ExpressionList (children 7)
      Literal Float64_0.01
      Literal Float64_0.1
      Literal Float64_0.25
      Literal Float64_0.5
      Literal Float64_0.75
      Literal Float64_0.9
      Literal Float64_0.99