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
SVL_MV_REFRESH_STATUS
The SVL_MV_REFRESH_STATUS view contains a row for the refresh activity of materialized views.
For more information about materialized views, see Materialized views in Amazon Redshift.
SVL_MV_REFRESH_STATUS 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_MV_REFRESH_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 |
---|---|---|
db_name | char(128) | The database that contains the materialized view. |
userid | bigint | The ID of the user who performed the refresh. |
schema_name | char(128) | The schema of the materialized view. |
mv_name | char(128) | The materialized view name. |
xid | bigint | The transaction ID of the refresh. |
starttime | timestamp | The start time of the refresh. |
endtime | timestamp | The end time of the refresh. |
status | text | The status of the refresh. Example values include the following:
|
refresh_type | char(32) | The definition of the refresh type. Example values include Manual and Auto. |
Sample query
To view the refresh status of materialized views, run the following query.
select * from svl_mv_refresh_status;
This query returns the following sample output:
db_name | userid | schema | name | xid | starttime | endtime | status | refresh_type ---------+--------+-----------+---------+-------+----------------------------+----------------------------+-------------------------------------------------------------------------------------+----------------- dev | 169 | mv_schema | mv_test | 6640 | 2020-02-14 02:26:53.497935 | 2020-02-14 02:26:53.556156 | Refresh successfully recomputed MV from scratch | Manual dev | 166 | mv_schema | mv_test | 6517 | 2020-02-14 02:26:39.287438 | 2020-02-14 02:26:39.349539 | Refresh successfully updated MV incrementally | Auto dev | 162 | mv_schema | mv_test | 6388 | 2020-02-14 02:26:27.863426 | 2020-02-14 02:26:27.918307 | Refresh successfully recomputed MV from scratch | Manual dev | 161 | mv_schema | mv_test | 6323 | 2020-02-14 02:26:20.020717 | 2020-02-14 02:26:20.080002 | Refresh successfully updated MV incrementally | Auto dev | 161 | mv_schema | mv_test | 6301 | 2020-02-14 02:26:05.796146 | 2020-02-14 02:26:07.853986 | Refresh successfully recomputed MV from scratch | Manual dev | 153 | mv_schema | mv_test | 6024 | 2020-02-14 02:25:18.762335 | 2020-02-14 02:25:20.043462 | MV was already updated | Manual dev | 143 | mv_schema | mv_test | 5557 | 2020-02-14 02:24:23.100601 | 2020-02-14 02:24:23.100633 | MV was already updated | Manual dev | 141 | mv_schema | mv_test | 5447 | 2020-02-14 02:23:54.102837 | 2020-02-14 02:24:00.310166 | Refresh successfully updated MV incrementally | Auto dev | 1 | mv_schema | mv_test | 5329 | 2020-02-14 02:22:26.328481 | 2020-02-14 02:22:28.369217 | Refresh successfully recomputed MV from scratch | Auto dev | 138 | mv_schema | mv_test | 5290 | 2020-02-14 02:21:56.885093 | 2020-02-14 02:21:56.885098 | Refresh failed. MV was not found | Manual dev | 138 | mv_schema | mv_test | 5100 | 2020-02-14 02:20:33.123445 | 2020-02-14 02:20:33.123445 | Cascade refresh failed because materialized view mv_schema.child was not refreshed. | Manual dev | 138 | mv_schema | child | 5100 | 2020-02-14 02:20:33.123445 | 2020-02-14 02:20:33.123445 | Refresh failed due to an internal error. | Manual dev | 138 | mv_schema | mv_test | 5099 | 2020-02-14 02:10:23.492344 | 2020-02-14 02:10:23.492344 | Cascade refresh skipped because materialized view mv_schema.child was not refreshed.| Manual dev | 138 | mv_schema | child | 5099 | 2020-02-14 02:10:23.492344 | 2020-02-14 02:10:23.492344 | Refresh failed due to an internal error. | Manual