Re: Extract transactions from wals ?? - Mailing list pgsql-general

On Nov 21, 2019, at 9:35 AM, Marc Millas <marc.millas@mokadb.com> wrote:

Hi Laurenz,

I was writing select from ""table"" as a template. We have to do this for a bunch of tables.

So, to my understanding, what you suggest is to PITR up to the first timestamp, extract all meaningfull tables, and then pitr to the second timestamp

so as to be able to script a kind of "diff" between the 2 to get what I want.

Yes ?

Marc MILLAS

Senior Architect

+33607850334

www.mokadb.com

On Thu, Nov 21, 2019 at 5:16 PM Laurenz Albe <laurenz.albe@cybertec.at> wrote:

On Thu, 2019-11-21 at 17:07 +0100, Marc Millas wrote:
> you say "extract the data you need"
> That is exactly the point of my question, as the PITR step was obvious.
> How to guess "what is the data" I need ??

Well, you asked for the contents of a table AS OF TIMESTAMP <something>.

That means you know which table and which timestamp.

So restore the PostgreSQL cluster to that timestamp, connect
and SELECT from the table.

Yours,
Laurenz Albe
--
Cybertec | https://www.cybertec-postgresql.com