[BUG] Eval function doesn't work in PPL

[A-Gray-Cat]

What is the bug?
'eval' function doesn't work in PPL

How can one reproduce the bug?
Steps to reproduce the behavior:

1. Go to Data sources -> securitylake -> query data -> open log explorer
2. Run the follow queries:

source = securitylake.amazon_security_lake_glue_db_us_east_1.amazon_security_lake_table_us_east_1_cloud_trail_mgmt_2_0 | eval t = 2 + 2 
| fields t 
| where time_dt > '2024-08-11 00:00:00' and region = 'us-east-1' 
| head 10

and you will get {"Message":"Fail to run query. Cause: Not Supported operation : Eval"}

What is the expected behavior?
eval function works as expected

What is your host/environment?

• OS: [e.g. iOS]
• Version 2.13
• Plugins

Do you have any screenshots?
If applicable, add screenshots to help explain your problem.

Do you have any additional context?
Add any other context about the problem.

[YANG-DB]

This issue was resolved here