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Re: [oauth] Stabilize the libpq-oauth ABI (and allow alternative implementations?)

Jacob Champion <jacob.champion@enterprisedb.com>

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From: Jacob Champion <jacob.champion@enterprisedb.com>
To: Zsolt Parragi <zsolt.parragi@percona.com>
Cc: PostgreSQL Hackers <pgsql-hackers@postgresql.org>, Chao Li <li.evan.chao@gmail.com>
Date: 2026-03-10T16:32:30Z
Lists: pgsql-hackers

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On Fri, Mar 6, 2026 at 4:27 PM Jacob Champion
<jacob.champion@enterprisedb.com> wrote:
> I'll cherry-pick some of the -1 handling backwards in the patchset to
> handle this.

Done in v7-0001. Some of the improvements in the WIP patch were also
cherry-picked, and I fixed a stray comment bug. -0001 and -0002 are
next up for commit.

-0003 fills out the commit message and should be generally reviewable
now. -0004 adds the ability to LD_LIBRARY_PATH your way into flow
plugin development for the v20 cycle. -0005 becomes pretty much
useless other than for testing (and it should possible to adapt those
tests to -0004's implementation at some point).

Thanks,
--Jacob

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. libpq: Allow developers to reimplement libpq-oauth

  2. libpq: Poison the v2 part of a v1 Bearer request

  3. libpq-oauth: Never link against libpq's encoding functions

  4. libpq-oauth: Use the PGoauthBearerRequestV2 API

  5. libpq: Introduce PQAUTHDATA_OAUTH_BEARER_TOKEN_V2

  6. libpq: Add PQgetThreadLock() to mirror PQregisterThreadLock()

  7. oauth: Report cleanup errors as warnings on stderr

  8. oauth_validator: Avoid races in log_check()

  9. libpq-oauth: use correct c_args in meson.build

  10. libpq-fe.h: Don't claim SOCKTYPE in the global namespace