On Saturday, December 10, 2016, Tom DalPozzo <t.dalpo...@gmail.com> wrote:

>
> ​I have one direct DB client (let's name it MIDAPP) only. This client of
> the DB is a server for up to 10000 final clients.
> Any time MIDAPP is going to reply to a client, it must save a "status
> record with some data" related to that client and only after that,
> answering /committing the final client.
> The next time the same final client will ask something, the same status
> record will be updated again (with a different content).
>

Why do you want to pay for concurrency control when you don't seem to need
it?  While PostgreSQL likely can do what you need I suspect there are
applications out there that can solve this specific problem better.  Even
something as simple as a flat file, one per "final client", written
atomically and fsynced after each write/rename.

David J,

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