| From: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Andrew Farries <andrew(dot)farries(at)xata(dot)io>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Proposal: pg_is_volatile function |
| Date: | 2025-02-20 18:21:59 |
| Message-ID: | CAFj8pRCou4mjXCHs4dRfq-45jL+PQk+74QSH=n2oVEQrXO6usw@mail.gmail.com |
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| Lists: | pgsql-hackers |
Hi
> What we have speculated about in the past is extending EXPLAIN
> so that it can be applied to ALTER TABLE and other complicated
> utility commands, and then for ALTER TABLE one bit of info it would
> give you is whether a table rewrite (or even a table scan) is
> required. Obviously, that's a major project, and so nobody's
> tackled it yet AFAIK.
>
I though same idea, using EXPLAIN for this purpose can be nice and intuitive
Regards
Pavel
>
> regards, tom lane
>
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