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

From: Michael Paquier <michael(at)paquier(dot)xyz>
To: Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com>
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 00:03:31
Message-ID: aq3RU3wN5qG62eO8@paquier.xyz
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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. I am less convinced about the dump/restore
tests you are proposing; these are utterly bloated.
--
Michael

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