Horton

Re: Relation bulk write facility

Noah Misch <noah@leadboat.com>

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From: Noah Misch <noah@leadboat.com>
To: Heikki Linnakangas <hlinnaka@iki.fi>
Cc: Michael Paquier <michael@paquier.xyz>, Robert Haas <robertmhaas@gmail.com>, Tom Lane <tgl@sss.pgh.pa.us>, Thomas Munro <thomas.munro@gmail.com>, Andres Freund <andres@anarazel.de>, Peter Smith <smithpb2250@gmail.com>, vignesh C <vignesh21@gmail.com>, pgsql-hackers <pgsql-hackers@postgresql.org>, Melanie Plageman <melanieplageman@gmail.com>
Date: 2024-02-28T03:52:59Z
Lists: pgsql-hackers

Commits

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

  1. Relax fsyncing at end of a bulk load that was not WAL-logged

  2. Fix cross-version upgrade tests after f0827b443.

  3. Remove AIX support

  4. Fix compiler warning on typedef redeclaration

  5. Introduce a new smgr bulk loading facility.

On Wed, Feb 28, 2024 at 12:24:01AM +0400, Heikki Linnakangas wrote:
> Here's a patch to fully remove AIX support.

> Subject: [PATCH 1/1] Remove AIX support
> 
> There isn't a lot of user demand for AIX support, no one has stepped
> up to the plate to properly maintain it, so it's best to remove it

Regardless of how someone were to step up to maintain it, we'd be telling them
such contributions have negative value and must stop.  We're expelling AIX due
to low demand, compiler bugs, its ABI, and its shlib symbol export needs.

> altogether. AIX is still supported for stable versions.
> 
> The acute issue that triggered this decision was that after commit
> 8af2565248, the AIX buildfarm members have been hitting this
> assertion:
> 
>     TRAP: failed Assert("(uintptr_t) buffer == TYPEALIGN(PG_IO_ALIGN_SIZE, buffer)"), File: "md.c", Line: 472, PID: 2949728
> 
> Apperently the "pg_attribute_aligned(a)" attribute doesn't work on AIX
> (linker?) for values larger than PG_IO_ALIGN_SIZE.

No; see https://postgr.es/m/20240225194322.a5%40rfd.leadboat.com