InsertQuery   (children 2)
 Identifier summing_merge_tree_aggregate_function
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 1)
    ExpressionList (children 2)
     Literal UInt64_1
     Function quantileState (children 2)
      ExpressionList (children 1)
       Literal Float64_0
      ExpressionList (children 1)
       Literal Float64_0.1
