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From: Jeff Davis <[email protected]>
To: Bharath Rupireddy <[email protected]>
Cc: Masahiko Sawada <[email protected]>
Cc: PostgreSQL-development <[email protected]>
Cc: Andres Freund <[email protected]>
Cc: Dilip Kumar <[email protected]>
Cc: Luc Vlaming <[email protected]>
Cc: Justin Pryzby <[email protected]>
Cc: Michael Paquier <[email protected]>
Cc: Matthias van de Meent <[email protected]>
Cc: Alexander Korotkov <[email protected]>
Subject: Re: Introduce new multi insert Table AM and improve performance of various SQL commands with it for Heap AM
Date: Tue, 27 Aug 2024 14:43:59 -0700
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
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	<[email protected]>

On Mon, 2024-08-26 at 14:18 -0700, Jeff Davis wrote:
> 0001 implementation issues:
> 
> * We need default implementations for AMs that don't implement the
> new
> APIs, so that the AM will still function even if it only defines the
> single-tuple APIs. If we need to make use of the AM's multi_insert
> method (I'm not sure we do), then the default methods would need to
> handle that as well. (I thought a previous version had these default
> implementations -- is there a reason they were removed?)

On second thought, it would be easier to just have the caller check
whether the AM supports the multi-insert path; and if not, fall back to
the single-tuple path. The single-tuple path is needed anyway for cases
like before-row triggers.

Regards,
	Jeff Davis







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  Subject: Re: Introduce new multi insert Table AM and improve performance of various SQL commands with it for Heap AM
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