As an FME User, I want the PostgreSQL writer to be able to write default values if I send an empty string/missing/blank value(s) to the writer. Currently, if you want to the database to write the default value, you have to use an SQLCreator or SQLExectutor (as per the workarounds provided on the linked threads below).
This issue is currently being tracked as: FMEENGINE-8945
Related Forum Threads