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From: Andy Fan <[email protected]>
To: Tom Lane <[email protected]>
Cc: [email protected] <[email protected]>
Subject: Re: Why does exec_simple_query requires 2 snapshots
Date: Wed, 19 Feb 2025 01:10:21 +0000
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
	<[email protected]>

Tom Lane <[email protected]> writes:

> Andy Fan <[email protected]> writes:
>> My question is why can't we share the same snapshot for the 2 cases?
>> parser & planner requires Catalog Snapshot which should be the 
>> latest one, but in the above case, looks the executor can reuse it as
>> well. Is there anything I missed?
>
> Many years ago, we committed a patch to do exactly that.  We had
> to back it out again because it broke too many real-world scenarios.
> I'm too lazy to search the archives for you, but you might be able
> to find the commit and revert by searching the git history.
>
> 			regards, tom lane

Commit id is 532994299e2, thank you Tom!

-- 
Best Regards
Andy Fan

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