SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier test2
     TableJoin (children 1)
      Function or (children 1)
       ExpressionList (children 2)
        Function and (children 1)
         ExpressionList (children 2)
          Function isNull (children 1)
           ExpressionList (children 1)
            Identifier test.value
          Function isNull (children 1)
           ExpressionList (children 1)
            Identifier test2.value
        Function equals (children 1)
         ExpressionList (children 2)
          Identifier test.value
          Identifier test2.value
   Set
