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\$1RETURN
<a name="r_STL_RETURN"></a>

Contains details for *return* steps in queries. A return step returns the results of queries completed on the compute nodes to the leader node. The leader node then merges the data and returns the results to the requesting client. For queries completed on the leader node, a return step returns results to the client.

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\$1RETURN 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\$1RETURN 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="r_STL_RETURN-table-columns"></a>

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

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

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

```
SELECT query, slice, segment, step, endtime, rows, packets 
from stl_return where query = pg_last_query_id();

 query |  slice | segment | step |          endtime           | rows | packets 
-------+--------+---------+------+----------------------------+------+---------
     4 |      2 |       3 |    2 | 2013-12-27 01:43:21.469043 |    3 |       0
     4 |      3 |       3 |    2 | 2013-12-27 01:43:21.473321 |    0 |       0
     4 |      0 |       3 |    2 | 2013-12-27 01:43:21.469118 |    2 |       0
     4 |      1 |       3 |    2 | 2013-12-27 01:43:21.474196 |    0 |       0
     4 |      4 |       3 |    2 | 2013-12-27 01:43:21.47704  |    2 |       0
     4 |      5 |       3 |    2 | 2013-12-27 01:43:21.478593 |    0 |       0
     4 |   12811|       4 |    1 | 2013-12-27 01:43:21.480755 |    0 |       0
(7 rows)
```