Amazon Redshift will no longer support the creation of new Python UDFs starting Patch 198. Existing Python UDFs will continue to function until June 30, 2026. For more information, see the [ blog post ](https://aws.amazon.com/blogs/big-data/amazon-redshift-python-user-defined-functions-will-reach-end-of-support-after-june-30-2026/). 

# STL\$1SAVE
<a name="r_STL_SAVE"></a>

Contains details for *save* steps in queries. A save step saves the input stream to a transient table. A transient table is a temporary table that stores intermediate results during query execution.

A query consists of multiple segments, and each segment consists of one or more steps. For more information, see [Query processing](c-query-processing.md). 

STL\$1SAVE 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](cm_chap_system-tables.md#c_visibility-of-data).

**Note**  
STL\$1SAVE only contains queries run on main provisioned clusters. It doesn't contain queries run on concurrency scaling clusters or on serverless namespaces. To access explain plans for queries run on both main clusters, concurrency scaling clusters, and serverless namespaces, we recommend that you use the SYS monitoring view [SYS\$1QUERY\$1DETAIL](SYS_QUERY_DETAIL.md) . The data in the SYS monitoring view is formatted to be easier to use and understand.

## Table columns
<a name="w2aac59c29b9c99c13"></a>

[\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/redshift/latest/dg/r_STL_SAVE.html)

## Sample queries
<a name="r_STL_SAVE-sample-queries"></a>

The following query shows which save steps in the most recent query were performed on each slice. 

```
select query, slice, segment, step, tasknum, rows,  tbl  
from stl_save where query = pg_last_query_id();

 query | slice | segment | step | tasknum | rows | tbl
-------+-------+---------+------+---------+------+-----
 52236 |     3 |       0 |    2 |      21 |    0 | 239
 52236 |     2 |       0 |    2 |      20 |    0 | 239
 52236 |     2 |       2 |    2 |      20 |    0 | 239
 52236 |     3 |       2 |    2 |      21 |    0 | 239
 52236 |     1 |       0 |    2 |      21 |    0 | 239
 52236 |     0 |       0 |    2 |      20 |    0 | 239
 52236 |     0 |       2 |    2 |      20 |    0 | 239
 52236 |     1 |       2 |    2 |      21 |    0 | 239
(8 rows)
```