For bytea data, postgres 8.x used bytea_output = 'escape'. From version 9 the default became bytea_output = 'hex' as the default.

In an earlier version of OpenERP there were some issues with using 'hex'. Is that still relevant? How should bytea_output be configured for OpenERP?

• bytea_output = 'hex' or
• bytea_output = 'escape'