Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).

Amazon Redshift will no longer support the use of Python UDFs after June 30, 2026. We will start enforcing it in phases. For more information on the details of Python end of life and migration options, see the blog post that was published on June 30, 2025.

PG_LAST_QUERY_ID

Returns the query ID of the most recently completed query in the current session. If no queries have been run in the current session, PG_LAST_QUERY_ID returns -1. PG_LAST_QUERY_ID does not return the query ID for queries that run exclusively on the leader node. For more information, see Leader node–only functions.

Syntax

pg_last_query_id()

Return type

Returns an integer.

Example

The following query returns the ID of the latest query completed in the current session.

select pg_last_query_id();

Results are the following.

pg_last_query_id
----------------
           5437
(1 row)

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

select query, trim(querytxt) as sqlquery
from stl_query
where query = pg_last_query_id();

Results are the following.

query | sqlquery
------+--------------------------------------------------
 5437 | select name, loadtime from stl_file_scan where loadtime > 1000000;
(1 rows)