Re: Skip adding row-marks for non target tables when result relation is foreign table.

From: Jeff Davis <pgsql(at)j-davis(dot)com>
To: Etsuro Fujita <etsuro(dot)fujita(at)gmail(dot)com>
Cc: SAIKIRAN AVULA <avulasaikiranreddy(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Skip adding row-marks for non target tables when result relation is foreign table.
Date: 2024-08-15 00:56:46
Message-ID: cea2d8b99e6a6d574ad6a00d059f09b2a72f2624.camel@j-davis.com
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On Fri, 2024-08-09 at 17:35 +0900, Etsuro Fujita wrote:
> I might be missing something, but I think the extra round trip
> happens
> for each foreign row locked using the RefetchForeignRow() API in
> ExecLockRows(), so I think the overhead is caused in the normal case.

Is there any sample code that implements late locking for a FDW? I'm
not quite clear on how it's supposed to work.

Regards,
Jeff Davis

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