SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function if (children 1)
     ExpressionList (children 3)
      Function equals (children 1)
       ExpressionList (children 2)
        Identifier number
        Literal UInt64_0
      Literal UInt64_0
      Function divide (children 1)
       ExpressionList (children 2)
        Function toDecimal32 (children 1)
         ExpressionList (children 2)
          Literal UInt64_42
          Literal UInt64_2
        Identifier number
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function numbers (children 1)
       ExpressionList (children 1)
        Literal UInt64_5