Hi.
I was training on the KQL queries and I noticed an error.
Write multi-table queries by using Kusto Query Language
Unit 5 of 9 :Exercise - Combine table results by using the lookup operator
![User's image](https://learn-attachment.microsoft.com/api/attachments/0e48d478-93f9-47bd-b34f-a78c27ccada7?platform=QnA)
On this page, demonstrating the usage and better performance of lookup on table,
-->the query below should return the same results as the join kind=leftouter from the page
Write multi-table queries by using Kusto Query Language
Unit 4 of 9: Exercise - Combine table results by using the join operator
![User's image](https://learn-attachment.microsoft.com/api/attachments/b1b00362-21dd-4013-be81-dfef64f0957e?platform=QnA)
![User's image](https://learn-attachment.microsoft.com/api/attachments/e8ab82a0-0b11-496f-b12e-c80b87cefc83?platform=QnA)
I don't know if I missed something, but I don't have the same results, and the screenshot of both pages are also showing different results :D
Join leftouter results :![User's image](https://learn-attachment.microsoft.com/api/attachments/ef8e57eb-e9d2-4389-850b-412101672c84?platform=QnA)
Lookup screen shot : ![User's image](https://learn-attachment.microsoft.com/api/attachments/5731bd63-95f9-4801-b14a-ba8a9f6127c3?platform=QnA)
Only the first row is identical.
Regards.