Amazon Redshift will no longer support the creation of new Python UDFs starting November 1, 2025.
If you would like to use Python UDFs, create the UDFs prior to that date.
Existing Python UDFs will continue to function as normal. For more information, see the
blog post
SYS_SESSION_HISTORY
Use the SYS_SESSION_HISTORY to view information about the current active sessions and session history.
SYS_SESSION_HISTORY 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.
Table columns
| Column name | Data type | Description |
|---|---|---|
| user_id | char(50) | The identifier of the user who generated the entry. |
| session_id | integer | The ID of the session associated with the statement. |
| database_name | char(50) | The name of the database. |
| status | char | The status of the session. Possible values are
active, timed out, and
closed. |
| session_timeout | integer | The maximum time in seconds that a session remains inactive or idle before timing out. 0 indicates that no timeout is set. |
| start_time | timestamp | The timestamp that the connection was established. |
| end_time | timestamp | The timestamp that the connected stopped. |
Example
The following is a sample output of SYS_SESSION_HISTORY.
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 |