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/)。 # STL\$1LOAD\$1COMMITS STL\$1LOAD\$1COMMITS 返回用于跟踪或排查数据加载的信息。 此视图记录了在每个数据文件加载到数据库表中时的进度。 STL\$1LOAD\$1COMMITS 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)。 **注意** STL\$1LOAD\$1COMMITS 仅包含在主预置集群上运行的查询。它不包含在并发扩展集群或无服务器命名空间上运行的查询。要访问在主集群、并发扩展集群和无服务器命名空间上运行的查询的解释计划，我们建议您使用 SYS 监控视图 [SYS\$1LOAD\$1DETAIL](SYS_LOAD_DETAIL.md)。SYS 监控视图中的数据经过格式化处理，便于使用和理解。 ## 表列 表列 [\[See the AWS documentation website for more details\]](http://docs.amazonaws.cn/redshift/latest/dg/r_STL_LOAD_COMMITS.html) ## 示例查询 示例查询 以下示例返回上次 COPY 操作的详细信息。 ``` select query, trim(filename) as file, curtime as updated from stl_load_commits where query = pg_last_copy_id(); query | file | updated -------+----------------------------------+---------------------------- 28554 | s3://dw-tickit/category_pipe.txt | 2013-11-01 17:14:52.648486 (1 row) ``` 以下查询包含 TICKIT 数据库中初次加载表时的条目： ``` select query, trim(filename), curtime from stl_load_commits where filename like '%tickit%' order by query; ``` ``` query | btrim | curtime -------+---------------------------+---------------------------- 22475 | tickit/allusers_pipe.txt | 2013-02-08 20:58:23.274186 22478 | tickit/venue_pipe.txt | 2013-02-08 20:58:25.070604 22480 | tickit/category_pipe.txt | 2013-02-08 20:58:27.333472 22482 | tickit/date2008_pipe.txt | 2013-02-08 20:58:28.608305 22485 | tickit/allevents_pipe.txt | 2013-02-08 20:58:29.99489 22487 | tickit/listings_pipe.txt | 2013-02-08 20:58:37.632939 22593 | tickit/allusers_pipe.txt | 2013-02-08 21:04:08.400491 22596 | tickit/venue_pipe.txt | 2013-02-08 21:04:10.056055 22598 | tickit/category_pipe.txt | 2013-02-08 21:04:11.465049 22600 | tickit/date2008_pipe.txt | 2013-02-08 21:04:12.461502 22603 | tickit/allevents_pipe.txt | 2013-02-08 21:04:14.785124 22605 | tickit/listings_pipe.txt | 2013-02-08 21:04:20.170594 (12 rows) ``` 向此系统视图的日志文件写入一个记录的事实并不表示加载操作已作为其所属的事务的一部分成功提交。要验证加载提交，请查询 STL\$1UTILITYTEXT 视图并查找与 COPY 事务对应的 COMMIT 记录。例如，此查询基于针对 STL\$1UTILITYTEXT 的子查询联接 STL\$1LOAD\$1COMMITS 和 STL\$1QUERY： ``` select l.query,rtrim(l.filename),q.xid from stl_load_commits l, stl_query q where l.query=q.query and exists (select xid from stl_utilitytext where xid=q.xid and rtrim("text")='COMMIT'); query | rtrim | xid -------+---------------------------+------- 22600 | tickit/date2008_pipe.txt | 68311 22480 | tickit/category_pipe.txt | 68066 7508 | allusers_pipe.txt | 23365 7552 | category_pipe.txt | 23415 7576 | allevents_pipe.txt | 23429 7516 | venue_pipe.txt | 23390 7604 | listings_pipe.txt | 23445 22596 | tickit/venue_pipe.txt | 68309 22605 | tickit/listings_pipe.txt | 68316 22593 | tickit/allusers_pipe.txt | 68305 22485 | tickit/allevents_pipe.txt | 68071 7561 | allevents_pipe.txt | 23429 7541 | category_pipe.txt | 23415 7558 | date2008_pipe.txt | 23428 22478 | tickit/venue_pipe.txt | 68065 526 | date2008_pipe.txt | 2572 7466 | allusers_pipe.txt | 23365 22482 | tickit/date2008_pipe.txt | 68067 22598 | tickit/category_pipe.txt | 68310 22603 | tickit/allevents_pipe.txt | 68315 22475 | tickit/allusers_pipe.txt | 68061 547 | date2008_pipe.txt | 2572 22487 | tickit/listings_pipe.txt | 68072 7531 | venue_pipe.txt | 23390 7583 | listings_pipe.txt | 23445 (25 rows) ``` 以下示例突出显示 is\$1partial 和 start\$1offset 列值。 ``` -- Single large file copy without scan range SELECT count(*) FROM stl_load_commits WHERE query = pg_last_copy_id(); 1 -- Single large uncompressed, delimited file copy with scan range SELECT count(*) FROM stl_load_commits WHERE query = pg_last_copy_id(); 16 -- Scan range offset logging in the file at 64MB boundary. SELECT start_offset FROM stl_load_commits WHERE query = pg_last_copy_id() ORDER BY start_offset; 0 67108864 134217728 201326592 268435456 335544320 402653184 469762048 536870912 603979776 671088640 738197504 805306368 872415232 939524096 1006632960 ```