Re: Add client connection check during the execution of the query - Mailing list pgsql-hackers

From Tatsuo Ishii
Subject Re: Add client connection check during the execution of the query
Date
Msg-id 20190705.154204.2022066057531003556.t-ishii@sraoss.co.jp
Whole thread Raw
In response to Re: Add client connection check during the execution of the query  (Thomas Munro <thomas.munro@gmail.com>)
Responses Re: Add client connection check during the execution of the query  (Thomas Munro <thomas.munro@gmail.com>)
List pgsql-hackers
> This seems like a reasonable idea to me.  There is no point in running
> a monster 24 hour OLAP query if your client has gone away.  It's using
> MSG_PEEK which is POSIX, and I can't immediately think of any reason
> why it's not safe to try to peek at a byte in that socket at any time.

I am not familiar with Windows but I accidentally found this article
written by Microsoft:

https://support.microsoft.com/en-us/help/192599/info-avoid-data-peeking-in-winsock

It seems using MSG_PEEK is not recommended by Microsoft.

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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