More control over connection's buffers

[cergxx]

In my project I have a pool of long-living connections to ClickHouse.
Each of them holds a buffer clickhouse.connect.buffer, which leads to overall big memory usage

I would like to have more control over these buffers – to be able to drop them without closing the connection

Possible solutions:
Add an option to clickhouse.Options like FreeBuffersOnRelease, which would trigger drop of the buffer on every connection release
(Replace b.Buf = b.Buf[:0] with b.Buf = nil)

[jkaflik]

Hi @cergxx

Would you like to submit a PR with change?

[cergxx]

Would you like to submit a PR with change?

Yes, I would