SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function arrayMap (children 1)
     ExpressionList (children 2)
      Function lambda (children 1)
       ExpressionList (children 2)
        Function tuple (children 1)
         ExpressionList (children 1)
          Identifier a
        Function round (children 1)
         ExpressionList (children 2)
          Identifier a
          Literal UInt64_2
      Function quantilesDD (children 2)
       ExpressionList (children 1)
        Identifier x
       ExpressionList (children 18)
        Literal Float64_0.01
        Literal UInt64_0
        Literal Float64_0.001
        Literal Float64_0.01
        Literal Float64_0.05
        Literal Float64_0.1
        Literal Float64_0.2
        Literal Float64_0.3
        Literal Float64_0.4
        Literal Float64_0.5
        Literal Float64_0.6
        Literal Float64_0.7
        Literal Float64_0.8
        Literal Float64_0.9
        Literal Float64_0.95
        Literal Float64_0.99
        Literal Float64_0.999
        Literal UInt64_1
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 3)
          ExpressionList (children 1)
           Identifier number (alias x)
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier system.numbers
          Literal UInt64_1001