SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 2)
    Function quantilesTiming (children 2)
     ExpressionList (children 1)
      Identifier t
     ExpressionList (children 2)
      Literal Float64_0.5
      Literal Float64_0.9
    Function quantilesTimingWeighted (children 2)
     ExpressionList (children 2)
      Identifier t
      Identifier w
     ExpressionList (children 2)
      Literal Float64_0.5
      Literal Float64_0.9
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 3)
          ExpressionList (children 2)
           Identifier number (alias t)
           Function if (alias w) (children 1)
            ExpressionList (children 3)
             Function equals (children 1)
              ExpressionList (children 2)
               Identifier number
               Literal UInt64_77
             Literal UInt64_10
             Literal UInt64_1
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier system.numbers
          Literal UInt64_100