There is a patch for specialized UPSERT which was being actively developed very recently. I would not be surprised if it makes it into PostgreSQL 9.5. On the ot

There is a patch for specialized UPSERT which was being actively developed very recently. I would not be surprised if it makes it into PostgreSQL 9.5. On the other hand there is currently no working being done on MERGE. https://commitfest.postgresql.org/action/patch_view?id=1201 https://commitfest.postgresql.org/action/patch_view?id=1201