>> I could not find this:
>> 
>> $ git log -1 f8e5f15
>> commit f8e5f156b30efee5d0038b03e38735773abcb7ed
>> Author: Andres Freund <and...@anarazel.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-is...@sraoss.co.jp
> 
> That seemed too detailed for the release notes.  Is that wrong?

This commit gives user-visible changes to the statment timeout
behavior. So I think this should be added to the release notes.

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

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