SYS_TRANSACTION_HISTORY
Use SYS_TRANSACTION_HISTORY to see details of a transaction when tracking a query.
SYS_TRANSACTION_HISTORY is visible only to superusers. For more information, see Visibility of data in system tables and views.
Table columns
| Column name | Data type | Description |
|---|---|---|
| user_id | integer | ID of the user who generated the entry. |
| transaction_id | bigint | The ID of the transaction. |
| isolation_level | text | The isolation level of the transaction. Possible
values are Serializable and Snapshot
Isolation. |
| status | text | The status of the transaction. Possible statuses
are committed and rolledback. |
| transaction_start_time | timestamp | The start time of the transaction. |
| commit_start_time | timestamp | The start time of the commit. |
| commit_end_time | timestamp | The end time of the commit. |
| blocks_committed | bigint | The number of blocks that had to be written as part of this commit. |
| undo_transaction_id | bigint | The ID of the undo transaction if any transactions have been undone. Otherwise, this value is -1. |
Sample queries
select * from sys_transaction_history order by transaction_start_time desc;
user_id | transaction_id | isolation_level | status | transaction_start_time | commit_start_time | commit_end_time | blocks_committed | undo_transaction_id
---------+----------------+-----------------+------------+----------------------------+----------------------------+----------------------------+------------------+---------------------
100 | 1310 | Serializable | committed | 2023-08-27 21:03:11.822205 | 2023-08-28 21:03:11.825287 | 2023-08-28 21:03:11.854883 | 17 | -1
101 | 1345 | Serializable | committed | 2023-08-27 21:03:12.000278 | 2023-08-28 21:03:12.003736 | 2023-08-28 21:03:12.030061 | 17 | -1
102 | 1367 | Serializable | committed | 2023-08-27 21:03:12.1532 | 2023-08-28 21:03:12.156124 | 2023-08-28 21:03:12.186468 | 17 | -1
100 | 1370 | Serializable | committed | 2023-08-27 21:03:12.199316 | 2023-08-28 21:03:12.204854 | 2023-08-28 21:03:12.238186 | 24 | -1
100 | 1408 | Serializable | committed | 2023-08-27 21:03:53.891107 | 2023-08-28 21:03:53.894825 | 2023-08-28 21:03:53.927465 | 17 | -1
100 | 1409 | Serializable | rolledback | 2023-08-27 21:03:53.936431 | 2000-01-01 00:00:00 | 2023-08-28 21:04:08.712532 | 0 | 1409
101 | 1415 | Serializable | committed | 2023-08-27 21:04:24.283188 | 2023-08-28 21:04:24.289196 | 2023-08-28 21:04:24.374318 | 25 | -1
101 | 1416 | Serializable | committed | 2023-08-27 21:04:24.38818 | 2023-08-28 21:04:24.391688 | 2023-08-28 21:04:24.415135 | 17 | -1
100 | 1417 | Serializable | rolledback | 2023-08-27 21:04:24.424252 | 2000-01-01 00:00:00 | 2023-08-28 21:04:28.354826 | 0 | 1417
101 | 1418 | Serializable | rolledback | 2023-08-27 21:04:24.425195 | 2000-01-01 00:00:00 | 2023-08-28 21:04:28.680355 | 0 | 1418
100 | 1420 | Serializable | committed | 2023-08-27 21:04:28.697607 | 2023-08-28 21:04:28.702374 | 2023-08-28 21:04:28.735541 | 23 | -1
101 | 1421 | Serializable | committed | 2023-08-27 21:04:28.744854 | 2023-08-28 21:04:28.749344 | 2023-08-28 21:04:28.779029 | 23 | -1
101 | 1423 | Serializable | committed | 2023-08-27 21:04:28.78942 | 2023-08-28 21:04:28.791556 | 2023-08-28 21:04:28.817485 | 16 | -1
100 | 1430 | Serializable | committed | 2023-08-27 21:04:28.917788 | 2023-08-28 21:04:28.919993 | 2023-08-28 21:04:28.944812 | 16 | -1
102 | 1494 | Serializable | committed | 2023-08-27 21:04:37.029058 | 2023-08-28 21:04:37.033137 | 2023-08-28 21:04:37.062001 | 16 | -1
