Re: Pipeline mode and PQpipelineSync()

Alvaro Herrera <alvaro(dot)herrera(at)2ndquadrant(dot)com> writes:

> Curious -- I just noticed that the server understands a message 'H' that
> requests a flush of the server buffer. However, libpq has no way to
> generate that message as far as I can see. I think you could use that
> to request results from the pipeline, without the sync point.
>
> I wonder if it's worth adding an entry point to libpq to allow access to
> this.

Yes, I think this can be useful. For example, an application may wish
to receive the result as soon as possible in case it's used as input
to some further computation.

> PQrequestFlush() or something like that ...

I think I would prefer PQflushResult() or something along these
lines ("request" is easy to misinterpret as "client request").