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/). 

# LAST\$1USER\$1QUERY\$1ID
<a name="LAST_USER_QUERY_ID"></a>

Returns the query ID of the most recently completed user query in the current session. If no queries have been run in the current session, last\$1user\$1query\$1id returns -1. The function does not return the query ID for queries that run exclusively on the leader node. For more information, see [Leader node–only functions](c_SQL_functions_leader_node_only.md).

## Syntax
<a name="LAST_USER_QUERY_ID-synopsis"></a>

```
last_user_query_id()
```

## Return type
<a name="LAST_USER_QUERY_ID-return-type"></a>

Returns an integer. 

## Example
<a name="LAST_USER_QUERY_ID-example"></a>

The following query returns the ID of the latest query run by a user completed in the current session. 

```
select last_user_query_id();
```

Results are the following.

```
last_user_query_id
-----------------------
    5437
(1 row)
```

The following query returns the query ID and text of the most recently completed query run by a user in the current session.

```
select query_id, query_text from sys_query_history where query_id = last_user_query_id();
```

Results are the following.

```
 query_id, query_text
---------+-------------------------------------------------------------------------------------------------------------
 5556975 | select last_user_query_id() limit 100 --RequestID=<unique request ID>; TraceID=<unique trace ID>
```