View a markdown version of this page

pg_federation_repeatable_read - Amazon Redshift
Values (default in bold)DescriptionExamples
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_federation_repeatable_read

Values (default in bold)

true, false

Description

Specifies the federated query transaction isolation level for the results from the PostgreSQL database.

  • When pg_federation_repeatable_read is true, federated transactions are processed with REPEATABLE READ isolation level semantics. This is the default.

  • When pg_federation_repeatable_read is false, federated transactions are processed with READ COMMITTED isolation level semantics.

For more information, see the following:

Examples

The following command sets pg_federation_repeatable_read to on for a session. The show command shows the value of the set value.

set pg_federation_repeatable_read to on;

show pg_federation_repeatable_read;
            
pg_federation_repeatable_read
-----------------------------
on