STL_UNDONE - Amazon Redshift


Displays information about transactions that have been undone.

STL_UNDONE 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.

Some or all of the data in this table can also be found in the SYS monitoring view SYS_TRANSACTION_HISTORY. The data in the SYS monitoring view is formatted to be easier to use and understand. We recommend that you use the SYS monitoring view for your queries.

Table columns

Column name Data type Description
userid integer ID of the user who generated the entry.
xact_id bigint ID for the undo transaction.
xact_id_undone bigint ID for the transaction that was undone.
undo_start_ts timestamp Start time for the undo transaction.
undo_end_ts timestamp End time for the undo transaction.
table_id bigint ID for the table that was affected by the undo transaction.

Sample query

To view a concise log of all undone transactions, type the following command:

select xact_id, xact_id_undone, table_id from stl_undone;

This command returns the following sample output:

xact_id | xact_id_undone | table_id ---------+----------------+---------- 1344 | 1344 | 100192 1326 | 1326 | 100192 1551 | 1551 | 100192 (3 rows)