Re: pg_dump versus ancient server versions

Laurenz Albe <laurenz.albe@cybertec.at>

From: Laurenz Albe <laurenz.albe@cybertec.at>
To: Robert Haas <robertmhaas@gmail.com>, Tom Lane <tgl@sss.pgh.pa.us>
Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>, Andres Freund <andres@anarazel.de>
Date: 2021-10-25T08:29:19Z
Lists: pgsql-hackers
On Fri, 2021-10-22 at 19:26 -0400, Robert Haas wrote:
> On Fri, Oct 22, 2021 at 6:42 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
> > So my first thought was just to revert 92316a458 and give up on it as
> > a bad idea.  However ... does anyone actually still care about being
> > able to dump from such ancient servers?
> 
> I think I recently heard about an 8.4 server still out there in the
> wild, but AFAICR it's been a long time since I've heard about anything
> older.

I had a customer with 8.3 in the not too distant past, but that need not
stop the show.  If necessary, they can dump with 8.3 and restire that.

Yours,
Laurenz Albe




Commits

  1. Remove psql support for server versions preceding 9.2.

  2. Clean up some more freshly-dead code in pg_dump and pg_upgrade.

  3. Remove pg_dump's --no-synchronized-snapshots switch.

  4. Remove pg_upgrade support for upgrading from pre-9.2 servers.

  5. Remove pg_dump/pg_dumpall support for dumping from pre-9.2 servers.

  6. Suppress -Warray-bounds warning in 9.2's xlog.c.

  7. Suppress -Wformat-overflow warnings in 9.2's xml.c.

  8. Disable -Wsometimes-uninitialized warnings in the 9.2 branch.

  9. Fix function return type confusion

  10. Fix compiler warning

  11. Silence another gcc 11 warning.

  12. Suppress uninitialized-variable warning in guc.c.

  13. Suppress -Warray-parameter warnings in pgcrypto/sha2.c.

  14. Reformat imath.c macro to remove -Wmisleading-indentation warnings.

  15. Clean up compilation warnings coming from PL/Perl with clang-12~

  16. Make ecpg's rjulmdy() and rmdyjul() agree with their declarations.

  17. Use -Wno-format-truncation and -Wno-stringop-truncation, if available.

  18. Make pg_upgrade's test.sh less chatty.

  19. Add checks for valid multibyte character length in UtfToLocal, LocalToUtf.

  20. Use return instead of exit() in configure

  21. Add support for Visual Studio 2019 in build scripts