Antananarivo, Madagascar - April 19, 2025

PostgreSQL large object to bytea converter

First release v1.0 of oid2bytea tool has been published. oid2bytea is a program used to convert large objects columns in a PostgreSQL database into bytea. oid2bytea will automatically detect the oid columns and process to their bytea transformation automatically; parallel processing can be used to accelerate the migration. Of course you can also choose which tables need to be processed or filter on a schema.

Two migration modes are supported: local and remote. In local mode the large objects data stored in the pg_largeobject table will be moved into a newly created bytea column with the same name and the old oid column will be removed. In remote mode oid2bytea will migrate the local oid columns to a remote database with the same structure except that the oid columns have been replaced by bytea columns of the same names.

Links & Credits

oid2bytea is an open project under the PostgreSQL license maintained by HexaCluster Corp. Any contribution to build a better tool is welcome. You can send your ideas, features requests or patches using the GitHub tools.

Links :

• Download: https://github.com/HexaCluster/oid2bytea/releases/
• Support: use GitHub report tool at https://github.com/HexaCluster/oid2bytea/issues

About oid2bytea

The oid2bytea extension is an original work of HexaCluster Corp, the tool is developed and maintained by Gilles Darold at HexaCluster Corp. If you need more information about HexaCluster, please contact us.

Documentation at https://github.com/HexaCluster/oid2bytea#readme