Amazon Redshift will no longer support the creation of new Python UDFs starting Patch 198. Existing Python UDFs will continue to function until June 30, 2026. For more information, see the [ blog post ](https://amazonaws-china.com/blogs/big-data/amazon-redshift-python-user-defined-functions-will-reach-end-of-support-after-june-30-2026/).
# SYS\$1SESSION\$1HISTORY
Use the SYS\$1SESSION\$1HISTORY to view information about the current active sessions and session history.
SYS\$1SESSION\$1HISTORY is visible to all users. Superusers can see all rows; regular users can see only their own data. For more information, see [Visibility of data in system tables and views](cm_chap_system-tables.md#c_visibility-of-data).
## Table columns
[\[See the AWS documentation website for more details\]](http://docs.amazonaws.cn/en_us/redshift/latest/dg/SYS_SESSION_HISTORY.html)
### Example
The following is a sample output of SYS\$1SESSION\$1HISTORY.
```
select * from sys_session_history;
user_id | session_id | database_name | status | session_timeout | start_time | end_time
---------+------------+------------------+--------+-----------------+----------------------------+----------------------------
1 | 1073971370 | dev | closed | 0 | 2023-07-17 15:50:12.030104 | 2023-07-17 15:50:12.123218
1 | 1073979694 | dev | closed | 0 | 2023-07-17 15:50:24.117947 | 2023-07-17 15:50:24.131859
1 | 1073873049 | dev | closed | 0 | 2023-07-17 15:49:29.067398 | 2023-07-17 15:49:29.070294
1 | 1073873086 | database18127a4a | closed | 0 | 2023-07-17 15:49:29.119018 | 2023-07-17 15:49:29.125925
1 | 1073832112 | dev | closed | 0 | 2023-07-17 15:49:29.164688 | 2023-07-17 15:49:29.179631
1 | 1073987697 | dev | closed | 0 | 2023-07-17 15:49:29.26749 | 2023-07-17 15:49:29.273034
1 | 1073922429 | dev | closed | 0 | 2023-07-17 15:49:33.35315 | 2023-07-17 15:49:33.367499
1 | 1073766783 | dev | closed | 0 | 2023-07-17 15:49:45.38237 | 2023-07-17 15:49:45.396902
1 | 1073807506 | dev | active | 0 | 2023-07-17 15:51:48 |
```