Re: Support for 8-byte TOAST values, round two

From: Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com>
To: Michael Paquier <michael(at)paquier(dot)xyz>
Cc: Greg Burd <greg(at)burd(dot)me>, Yugo Nagata <nagata(at)sraoss(dot)co(dot)jp>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Support for 8-byte TOAST values, round two
Date: 2026-09-19 00:26:45
Message-ID: CALj2ACW=gPd15wp_pvA++qgTvoebbGuOmW991Y34-=YAWQVpnA@mail.gmail.com
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Hi,

On Fri, Sep 18, 2026 at 5:03 PM Michael Paquier <michael(at)paquier(dot)xyz> wrote:
>
> On Thu, Sep 17, 2026 at 12:03:00PM -0700, Bharath Rupireddy wrote:
> > Another approach is a new test module in src/test/modules (similar to
> > the xid_wraparound module) with a simple SQL function that advances
> > the OID counter in shared memory, similar to core's SetNextObjectId().
> > Being a test module, it doesn't impact production systems, and all the
> > 8-byte TOAST chunk_id related tests added for this feature can be
> > moved here and run across all BF animals.
>
> That could be one thing. Yes. Or perhaps not.
>
> > Others may have a different opinion. Meanwhile, IMHO, the remaining
> > v18 tests can go in, with this discussed separately.
>
> OK, you're right that it also sucks to do nothing for the logical
> decoding. So I think that I'll just do something for the
> test_decoding TAP test.

Works for me. Thanks.

> I am less convinced about the dump/restore
> tests you are proposing; these are utterly bloated.

Out of the 3 patches I posted here:
https://postgr.es/m/CALj2ACUmBhBGb+4d8SRq9JT_ZsObCAvY6-10CKgSWX98zdv2DQ@mail.gmail.com,
I'm fine to drop 0003 (I don't have a strong opinion on that) as
mentioned here:
https://postgr.es/m/CALj2ACWgpn_aWzzagrerFqD0p1kQv_iioWyJB5R8Cu8j3_yqdA%40mail.gmail.com

--
Bharath Rupireddy
Amazon Web Services: https://aws.amazon.com

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