Re: Enhance pg_stat_wal_receiver view to display connected host

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От Michael Paquier
Тема Re: Enhance pg_stat_wal_receiver view to display connected host
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Msg-id 20180112050641.GH2222@paquier.xyz
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Ответ на Re: Enhance pg_stat_wal_receiver view to display connected host  (Haribabu Kommi <kommi.haribabu@gmail.com>)
Ответы Re: Enhance pg_stat_wal_receiver view to display connected host
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On Fri, Jan 12, 2018 at 03:55:04PM +1100, Haribabu Kommi wrote:
> Before posting the patch, first I did the same, upon further study
> I didn't find any scenario where the value is not present in
> conn->connhost[conn->whichhost].host and present in conn->pghost.
>
> If user provides "host" as connection option, the value is present
> in both the variables. Even if the connection is unix domain socket,
> there is a value in conn->connhost[conn->whichhost].host.
>
> In case if user provides only hostaddr and host connection option,
> then in that case, both the members are NULL. So even if we add
> that case, it will be dead code.

Hm. Wouldn't it matter for cases where caller has not yet established a
connection to the server but still calls PQhost to get the host string?
--
Michael

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