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From: Tatsuo Ishii <[email protected]>
To: [email protected]
Cc: [email protected]
Subject: Re: protocol-level wait-for-LSN
Date: Wed, 30 Oct 2024 15:49:19 +0900 (JST)
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
	<[email protected]>
	<[email protected]>

>>> With this protocol extension, two things are changed:
>>>
>>> - The ReadyForQuery message sends back the current LSN.
>> If other protocol extension X tries to add something to the
>> ReadyForQuery message too, what would happen?
> 
> I think one would have to define that somehow.  If it's useful, the
> additional fields of both extensions could be appended, in some
> defined order.  But this is an interesting question to think about.

I think this kind of extension, which adds new filed to an existing
message type, should be implemented as v4 protocol.

Best reagards,
--
Tatsuo Ishii
SRA OSS K.K.
English: http://www.sraoss.co.jp/index_en/
Japanese:http://www.sraoss.co.jp

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