Now we can this feature emulate with dblink, and there are patches in
commitfest based on background workers, and emulation will be cheaper.

I had not noticed that "background session" proposal. That's definitely an interesting feature to have for some use cases. Dblink implies a new connection I think, pretty expensive. I wish that the proposal would be language independent, like DB2 simple AUTONOMOUS declaration on a function. It seems quite heavily linked to PL/pgSQL right now.


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