Skip to main content
This content has been archived and is no longer being updated. Links may not function; however, this content may be relevant to outdated versions of the product.
LinkedIn
Copied!

Table of Contents

BLOB storage in Postgres databases

To improve performance of Postgres databases, BLOB columns in new tables that are created during installation, upgrade, or DDL (Data Definition Language) and schema generation are altered to use external storage instead of expanded storage. Existing tables with BLOB columns are not altered during an upgrade. System management utilities that create tables with BLOB columns, such as import, still default to use expanded storage.

You can alter existing tables to use external storage when new data is inserted into them by using the following command:

alter table <schema name>.<table_name> alter column <column name> set storage external

Use the Postgres VACUUM command to rebuild the table and force existing BLOB columns to use external storage.
Did you find this content helpful?

Have a question? Get answers now.

Visit the Collaboration Center to ask questions, engage in discussions, share ideas, and help others.

Ready to crush complexity?

Experience the benefits of Pega Community when you log in.

We'd prefer it if you saw us at our best.

Pega Community has detected you are using a browser which may prevent you from experiencing the site as intended. To improve your experience, please update your browser.

Close Deprecation Notice
Contact us