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/). 

# SVL\$1S3QUERY
SVL\$1S3QUERY

Use the SVL\$1S3QUERY view to get details about Amazon Redshift Spectrum queries at the segment and node slice level.

SVL\$1S3QUERY 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**  
SVL\$1S3QUERY 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\$1EXTERNAL\$1QUERY\$1DETAIL](SYS_EXTERNAL_QUERY_DETAIL.md) . The data in the SYS monitoring view is formatted to be easier to use and understand.

## Table columns
Table columns

[\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/redshift/latest/dg/r_SVL_S3QUERY.html)

## Sample query
Sample queries

The following example gets the scan step details for the last query completed.

```
select query, segment, slice, elapsed, s3_scanned_rows, s3_scanned_bytes, s3query_returned_rows, s3query_returned_bytes, files 
from svl_s3query 
where query = pg_last_query_id() 
order by query,segment,slice;
```

```
query | segment | slice | elapsed | s3_scanned_rows | s3_scanned_bytes | s3query_returned_rows | s3query_returned_bytes | files
------+---------+-------+---------+-----------------+------------------+-----------------------+------------------------+------
 4587 |       2 |     0 |   67811 |               0 |                0 |                     0 |                      0 |     0
 4587 |       2 |     1 |  591568 |          172462 |         11260097 |                  8513 |                 170260 |     1
 4587 |       2 |     2 |  216849 |               0 |                0 |                     0 |                      0 |     0
 4587 |       2 |     3 |  216671 |               0 |                0 |                     0 |                      0 |     0
```