Re: [PATCH] The heap_getsysattr function deletes unused parameters

From: lei yang <yanglei(dot)ovo(at)gmail(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: Re: [PATCH] The heap_getsysattr function deletes unused parameters
Date: 2026-07-16 13:17:54
Message-ID: CAEDV8Fxd7D1jKjqay8rjO-8YadpHLjVFLJ+7LZgtVNiBBy0kog@mail.gmail.com
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Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes：
> I do not think this is a great idea. We don't use the tupdesc today
> perhaps, but it's plausible that it'd be needed in the future.
> Different table AMs might have different sets of system columns.

Thank you for your guidance.I didn't consider that different table AMs
might store system column information in tupdesc before.

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