Amazon Redshift は、パッチ 198 以降、新しい Python UDF の作成をサポートしなくなります。既存の Python UDF は、2026 年 6 月 30 日まで引き続き機能します。詳細については、[ブログ記事](https://aws.amazon.com/blogs/big-data/amazon-redshift-python-user-defined-functions-will-reach-end-of-support-after-june-30-2026/)を参照してください。 # SYS\$1MV\$1REFRESH\$1HISTORY 結果には、すべてのマテリアライズドビューの更新履歴に関する情報が含まれます。結果には、手動や自動などの更新タイプ、および最新の更新のステータスが含まれます。 SYS\$1MV\$1REFRESH\$1HISTORY はすべてのユーザーに表示されます。スーパーユーザーはすべての行を表示できますが、通常のユーザーは自分のデータのみを表示できます。詳細については、「[システムテーブルとビューのデータの可視性](cm_chap_system-tables.md#c_visibility-of-data)」を参照してください。 ## テーブルの列 [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/ja_jp/redshift/latest/dg/SYS_MV_REFRESH_HISTORY.html) ## サンプルクエリ 次のクエリは、マテリアライズドビューの更新履歴を表示します。 ``` SELECT user_id, session_id, transaction_id, database_name, schema_name, mv_id, mv_name, refresh_type, status, start_time, end_time, duration, consumer_account, consumer_region, consumer_namespace from sys_mv_refresh_history; ``` このクエリは、次のサンプル出力を返します。 ``` user_id | session_id | transaction_id | database_name | schema_name | mv_id | mv_name | refresh_type | status | start_time | end_time | duration | consumer_account | consumer_region | consumer_namespace ---------+------------+----------------+---------------+----------------------------+--------+--------------------+----------------+------------------------------------------------------------------------------------------------------+----------------------------+----------------------------+-----------+------------------+-----------------+------------------------------------ 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 | ext_db | producer_schema | 203779 | producer_mv | Manual | Refresh successfully updated MV incrementally | 2023-10-26 15:59:21.064252 | 2023-10-26 15:59:21.064885 | 633 | 0123456789 | us-east-1 | 623d8ff2-4391-4381-83d7-177caa6767af 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 | | | 1 | 1073815659 | 15071 | dev | test_stl_mv_refresh_schema | 203778 | mv_test | Manual | Cascade refresh failed because materialized view test_stl_mv_refresh_schema.child was not refreshed. | 2023-10-26 15:30:21.432252 | 2023-10-26 15:30:21.432252 | 532 | | | 1 | 1073815659 | 15071 | dev | test_stl_mv_refresh_schema | 203761 | child | Manual | Refresh failed due to an internal error. | 2023-10-26 15:30:21.432252 | 2023-10-26 15:30:21.432252 | 532 | | | 1 | 1073815659 | 15069 | dev | test_stl_mv_refresh_schema | 203778 | mv_test | Manual | Cascade refresh skipped because materialized view test_stl_mv_refresh_schema.child was not refreshed.| 2023-10-26 15:21:43.550369 | 2023-10-26 15:21:43.550369 | 633 1 | 1073815659 | 15069 | dev | test_stl_mv_refresh_schema | 203761 | child | Manual | Refresh failed due to an internal error. | 2023-10-26 15:21:43.550369 | 2023-10-26 15:21:43.550369 | 633 (10 rows) ```