SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function in (children 1)
     ExpressionList (children 2)
      Function tuple (children 1)
       ExpressionList (children 2)
        Function if (children 1)
         ExpressionList (children 3)
          Function modulo (children 1)
           ExpressionList (children 2)
            Identifier number
            Literal UInt64_2
          Literal NULL
          Literal \'abc\'
        Function materialize (children 1)
         ExpressionList (children 1)
          Literal UInt64_42
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 1)
          ExpressionList (children 2)
           Literal \'abc\'
           Literal UInt64_42
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function numbers (children 1)
       ExpressionList (children 1)
        Literal UInt64_2
