SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function quantileTDigestWeighted (children 2)
     ExpressionList (children 2)
      Function toDateTime (children 1)
       ExpressionList (children 1)
        Literal Float64_10000000000
      Literal UInt64_1
     ExpressionList (children 1)
      Literal Float64_-0