SYS_MV_REFRESH_HISTORY - Amazon Redshift

SYS_MV_REFRESH_HISTORY

The results include information about the refresh history of all materialized views. The results include the refresh type, such as manual or auto, and the status of the most recent refresh.

SYS_MV_REFRESH_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 integer The identifier of the user who submitted the refresh.
session_id integer The process identifier for the process running the materialized view refresh.
transaction_id bigint The transaction identifier.
database_name char(128) The database that contains the materialized view.
schema_name char(128) The schema of the materialized view.
mv_id bigint Object ID of the materialized view.
mv_name char(128) The materialized view name.
refresh_type char(32) The type of refresh, such as manual or auto.
status text The status of the refresh. For detailed information about statuses, see the status column for SVL_MV_REFRESH_STATUS.
start_time timestamp The start time of the refresh.
end_time timestamp The end time of the refresh.
duration bigint The amount of time in microseconds it took to refresh the materialized view.

Sample queries

The following query shows the refresh history for materialized views.

SELECT user_id, session_id, transaction_id, database_name, schema_name, mv_id, mv_name, refresh_type, status, start_time, end_time, duration from sys_mv_refresh_history;

The query returns the following sample output:

user_id | session_id | transaction_id | database_name | schema_name | mv_id | mv_name | refresh_type | status | start_time | end_time | duration ---------+------------+----------------+---------------+----------------------------+--------+--------------------+----------------+-------------------------------------------------+----------------------------+----------------------------+----------- 1 | 1073815659 | 15066 | dev | test_stl_mv_refresh_schema | 203762 | mv_incremental | Manual | MV was already updated | 2023-10-26 15:59:20.952179 | 2023-10-26 15:59:20.952866 | 687 1 | 1073815659 | 15068 | dev | test_stl_mv_refresh_schema | 203771 | mv_nonincremental | Manual | MV was already updated | 2023-10-26 15:59:21.008049 | 2023-10-26 15:59:21.008658 | 609 1 | 1073815659 | 15070 | dev | test_stl_mv_refresh_schema | 203779 | mv_refresh_error | Manual | MV was already updated | 2023-10-26 15:59:21.064252 | 2023-10-26 15:59:21.064885 | 633 1 | 1073815659 | 15074 | dev | test_stl_mv_refresh_schema | 203762 | mv_incremental | Manual | Refresh successfully updated MV incrementally | 2023-10-26 15:59:29.693329 | 2023-10-26 15:59:43.482842 | 13789513 1 | 1073815659 | 15076 | dev | test_stl_mv_refresh_schema | 203771 | mv_nonincremental | Manual | Refresh successfully recomputed MV from scratch | 2023-10-26 15:59:43.550184 | 2023-10-26 15:59:47.880833 | 4330649 1 | 1073815659 | 15078 | dev | test_stl_mv_refresh_schema | 203779 | mv_refresh_error | Manual | Refresh failed due to an internal error | 2023-10-26 15:59:47.949052 | 2023-10-26 15:59:52.494681 | 4545629 (6 rows)