[codexon]

What about the lack of upsert in PostgreSQL?

[dozzie]

Well, the same as the lack of upsert in SQL Server. Bear in mind that UPSERT != MERGE.

http://www.postgresql.org/message-id/CAM3SWZRP0c3g6+aJ=YYDGY...

[swasheck]

yeah. sql server's `MERGE` is hacky.

http://sqlperformance.com/2013/02/t-sql-queries/another-merg...