2026 年 6 月 30 日之后，Amazon Redshift 不再支持使用 Python UDF。我们将分阶段开始执行。有关 Python 生命周期终止和迁移选项详情的更多信息，请参阅 2025 年 6 月 30 日发布的[博客文章](https://aws.amazon.com/blogs/big-data/amazon-redshift-python-user-defined-functions-will-reach-end-of-support-after-june-30-2026/)。 # SYS\_MV\_STATE 结果包括有关所有实体化视图的状态的信息。这包括基表信息、架构属性和有关最近事件（例如删除列）的信息。 SYS\_MV\_STATE 对所有用户均可见。超级用户可以查看所有行；普通用户只能查看其自己的数据。有关更多信息，请参阅 [系统表和视图中的数据可见性](cm_chap_system-tables.md#c_visibility-of-data)。 ## 表列 | 列名称 | 数据类型 | 描述 | | --- | --- | --- | | user\_id | bigint | 创建事件的用户的 ID。 | | transaction\_id | bigint | 事件的事务 ID。 | | database\_name | char(128) | 包含实体化视图的数据库。 | | event\_desc | char(500) | 提示状态更改的事件。示例值包括：+ 列类型已更改
+ 列已被删除
+ 列已重命名
+ 架构名称已更改
+ 小型表转换
+ TRUNCATE
+ Vacuum 请注意，此列有其它可能的值。 | | start\_time | timestamp | 事件的开始时间。 | | base\_table\_database\_name | char(128) | 基表的数据库名称。 | | base\_table\_schema | char(128) | 基表的架构。 | | base\_table\_name | char(128) | 基表的名称。 | | mv\_schema | char(128) | 实体化视图的架构。 | | mv\_name | char(128) | 实体化视图的名称。 | | state | character(32) | 实体化视图的已更改状态，如下所示：+ 重新计算
+ 无法刷新 | ## 示例查询 以下查询显示了实体化视图状态。 ``` select * from sys_mv_state; ``` 查询返回以下示例输出： ``` user_id | transaction_id | database_name | event_desc | start_time | base_table_database_name | base_table_schema | base_table_name | mv_schema | mv_name | state ---------+----------------+---------------+-----------------------------+----------------------------+--------------------------+-------------------+---------------------+-------------+----------------------------+-------------- 106 | 12720 | tickit_db | TRUNCATE | 2023-07-26 14:59:12.788268 | tickit_db | mv_schema | test_table_95d6d861 | mv_schema | materialized_view_a1f3f862 | Recompute 106 | 12724 | tickit_db | ALTER TABLE ALTER DISTSTYLE | 2023-07-26 14:59:51.409014 | tickit_db | mv_schema | test_table_58102435 | mv_schema | materialized_view_ca746631 | Recompute 106 | 12720 | tickit_db | Column was renamed | 2023-07-26 14:59:12.822928 | tickit_db | mv_schema | test_table_95d6d861 | mv_schema | materialized_view_5750a8d4 | Unrefreshable 106 | 12727 | tickit_db | Table was renamed | 2023-07-26 15:00:08.051244 | tickit_db | mv_schema | test_table_95d6d861 | mv_schema | materialized_view_5750a8d4 | Unrefreshable 106 | 12720 | tickit_db | Column was renamed | 2023-07-26 14:59:12.857755 | tickit_db | mv_schema | test_table_95d6d861 | mv_schema | materialized_view_5750a8d4 | Unrefreshable 106 | 12727 | tickit_db | Table was renamed | 2023-07-26 15:00:08.051358 | tickit_db | mv_schema | test_table_95d6d861 | mv_schema | materialized_view_5ef0d754 | Unrefreshable 106 | 12720 | tickit_db | TRUNCATE | 2023-07-26 14:59:12.788159 | tickit_db | mv_schema | test_table_95d6d861 | mv_schema | materialized_view_5750a8d4 | Recompute 106 | 12720 | tickit_db | Column was renamed | 2023-07-26 14:59:12.857799 | tickit_db | mv_schema | test_table_95d6d861 | mv_schema | materialized_view_a1f3f862 | Unrefreshable 106 | 12720 | tickit_db | TRUNCATE | 2023-07-26 14:59:12.788327 | tickit_db | mv_schema | test_table_95d6d861 | mv_schema | materialized_view_5ef0d754 | Recompute 106 | 12727 | tickit_db | ALTER TABLE ALTER SORTKEY | 2023-07-26 15:00:08.006235 | tickit_db | mv_schema | test_table_58102435 | mv_schema | materialized_view_ca746631 | Recompute 106 | 12720 | tickit_db | Column was renamed | 2023-07-26 14:59:12.82297 | tickit_db | mv_schema | test_table_95d6d861 | mv_schema | materialized_view_a1f3f862 | Unrefreshable 106 | 12727 | tickit_db | Table was renamed | 2023-07-26 15:00:08.051321 | tickit_db | mv_schema | test_table_95d6d861 | mv_schema | materialized_view_a1f3f862 | Unrefreshable ```