Re: Postgres 11 release notes

Hi Bruce,

> I have committed the first draft of the Postgres 11 release notes. I
> will add more markup soon. You can view the most current version here:
>
> http://momjian.us/pgsql_docs/release-11.html
>
> I expect a torrent of feedback. ;-)

I could not find this:

$ git log -1 f8e5f15
commit f8e5f156b30efee5d0038b03e38735773abcb7ed
Author: Andres Freund <andres(at)anarazel(dot)de>
Date: Mon Sep 18 19:36:44 2017 -0700

Rearm statement_timeout after each executed query.

Previously statement_timeout, in the extended protocol, affected all
messages till a Sync message. For clients that pipeline/batch query
execution that's problematic.

Instead disable timeout after each Execute message, and enable, if
necessary, the timer in start_xact_command(). As that's done only for
Execute and not Parse / Bind, pipelining the latter two could still
cause undesirable timeouts. But a survey of protocol implementations
shows that all drivers issue Sync messages when preparing, and adding
timeout rearming to both is fairly expensive for the common parse /
bind / execute sequence.

Author: Tatsuo Ishii, editorialized by Andres Freund
Reviewed-By: Takayuki Tsunakawa, Andres Freund
Discussion: https://postgr.es/m/20170222.115044.1665674502985097185.t-ishii@sraoss.co.jp

Best regards,
--
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese:http://www.sraoss.co.jp