| From: | Thomas Munro <thomas(dot)munro(at)gmail(dot)com> |
|---|---|
| To: | Dirk Krautschick <Dirk(dot)Krautschick(at)trivadis(dot)com> |
| Cc: | "pgsql-general(at)lists(dot)postgresql(dot)org" <pgsql-general(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Is there something similar like flashback query from Oracle planned for PostgreSQL |
| Date: | 2021-06-23 23:37:54 |
| Message-ID: | CA+hUKGKF3mdx+CYAfW-WqTbsk-N4y12N0xqiVL201dRxBu0ubA@mail.gmail.com |
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| Lists: | pgsql-general |
On Thu, Jun 24, 2021 at 6:54 AM Dirk Krautschick
<Dirk(dot)Krautschick(at)trivadis(dot)com> wrote:
> Is there something planned to get a behaviour like Oracle's flashback query based on the old values
> before deleted by vacuum?
>
> So a feature to recreate old versions of rows if still there?
>
> Or are there any related extensions or tools doing this?
There are some things like pg_dirtyread and probably more. You might
be interested in some of the references in this thread:
As for the SQL standard's approach to this, there are some active
-hackers threads on that with patches in development... look for
"temporal tables" and "system versioned".
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