On 2019-02-08 12:15:58 +0300, Konstantin Knizhnik wrote:
> Frankly speaking, I do not think that such flexibility in choosing
> compression algorithms is really needed.
> I do not expect that there will be many situations where old client has to
> communicate with new server or visa versa.
> In most cases both client and server belongs to the same postgres
> distributive and so implements the same compression algorithm.
> As far as we are compressing only temporary data (traffic), the problem of
> providing backward compatibility seems to be not so important.
I think we should outright reject any patch without compression type
negotiation.