SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function topKWeighted (children 2)
     ExpressionList (children 2)
      Function toString (children 1)
       ExpressionList (children 1)
        Identifier number
      Identifier number
     ExpressionList (children 1)
      Literal UInt64_10
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function numbers (children 1)
       ExpressionList (children 1)
        Literal UInt64_3000000