从补丁 198 开始，Amazon Redshift 将不再支持创建新的 Python UDF。现有的 Python UDF 将继续正常运行至 2026 年 6 月 30 日。有关更多信息，请参阅[博客文章](https://www.amazonaws.cn/blogs/big-data/amazon-redshift-python-user-defined-functions-will-reach-end-of-support-after-june-30-2026/)。

# SYS\$1STREAM\$1SCAN\$1STATES
<a name="r_SYS_STREAM_SCAN_STATES"></a>

记录通过串流摄取加载的记录的扫描状态。

SYS\$1STREAM\$1SCAN\$1STATES 对所有用户可见。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
<a name="r_SYS_STREAM_SCAN_STATES-table-rows"></a>

[\[See the AWS documentation website for more details\]](http://docs.amazonaws.cn/redshift/latest/dg/r_SYS_STREAM_SCAN_STATES.html)

以下查询显示了特定查询的串流和主题数据。

```
select query_id,mv_name::varchar,external_schema_name::varchar,stream_name::varchar,sum(scanned_rows) total_records,
sum(scanned_bytes) total_bytes from sys_stream_scan_states where query in (5401180,8601939) group by 1,2,3,4;

  query_id  |    mv_name     | external_schema_name |   stream_name   | total_records |  total_bytes
------------+----------------+----------------------+-----------------+---------------+----------------
 5401180    | kinesistest    | kinesis              | kinesisstream   |    1493255696 | 3209006490704
 8601939    | msktest        | msk                  | mskstream       |      14677023 |   31056580668
(2 rows)
```