Search Postgresql Archives

Re: How to get an md5/sha256 hash of a really large object in psql?

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Great, thanks a lot!

I will test it on my system.

Myself, I tried to do it in C with libpq, but got stuck at reading a LO...


On Sat, 29 Jul 2023 at 19:57, Erik Wienhold <ewie@xxxxxxxxx> wrote:
> “SELECT md5(lo_get(loid));” doesnt work — “large object is too large”.
>
> Is there any other way to do it?

Is plpython3u [1] an option for you?  In that case you can use Python's hashlib
in a custom function and feed every page from pg_largeobject to a selected hash
function.
...
--
Erik


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]

  Powered by Linux