Re: Add %r substitution for psql prompts to show recovery status

From: "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>
To: Ian Barwick <ian(dot)barwick(at)2ndquadrant(dot)com>
Cc: "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Add %r substitution for psql prompts to show recovery status
Date: 2017-12-07 21:41:55
Message-ID: CAKFQuwZtSX-xx6g8PZfm0vWrXrK=D==9wRA3BcashT3Ucx8GuQ@mail.gmail.com
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On Wed, Dec 6, 2017 at 7:19 PM, Ian Barwick <ian(dot)barwick(at)2ndquadrant(dot)com>
wrote:

> A possible alternative would be only to check the status each time a new
> database connection is made, but that wouldn't catch the case where the
> server has been promoted.
>

​Can we cache a false pg_is_in_recovery response and return that instead of
querying the server?

David J.
​

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