Horton

Re: Built-in CTYPE provider

Michael Paquier <michael@paquier.xyz>

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From: Michael Paquier <michael@paquier.xyz>
To: Robert Haas <robertmhaas@gmail.com>
Cc: Daniel Verite <daniel@manitou-mail.org>, Jeff Davis <pgsql@j-davis.com>, Jeremy Schneider <schneider@ardentperf.com>, pgsql-hackers@postgresql.org
Date: 2024-01-14T23:23:28Z
Lists: pgsql-hackers 
On Fri, Jan 12, 2024 at 01:13:04PM -0500, Robert Haas wrote:
> On Fri, Jan 12, 2024 at 1:00 PM Daniel Verite <daniel@manitou-mail.org> wrote:
>> ISTM that in general the behavior of old psql vs new server does
>> not weight much against choosing optimal catalog changes.
> 
> +1.

+1.  There is a good amount of effort put in maintaining downward
compatibility in psql.  Upward compatibility would require more
manipulations of the stable branches to make older versions of psql
compatible with newer server versions.  Brr.
--
Michael

Commits

  1. Support PG_UNICODE_FAST locale in the builtin collation provider.

  2. Support Unicode full case mapping and conversion.

  3. Fix test failures when language environment is not UTF-8.

  4. Add unicode_strtitle() for Unicode Default Case Conversion.

  5. Use version for builtin collations.

  6. Fix convert_case(), introduced in 5c40364dd6.

  7. Inline basic UTF-8 functions.

  8. Support C.UTF-8 locale in the new builtin collation provider.

  9. Fix another warning, introduced by 846311051e.

  10. Address more review comments on commit 2d819a08a1.

  11. Fix unreachable code warning from commit 2d819a08a1.

  12. Introduce "builtin" collation provider.

  13. Catalog changes preparing for builtin collation provider.

  14. Unicode case mapping tables and functions.

  15. Add Unicode property tables.

  16. Documentation update for Standard Collations.

  17. Cleanup for unicode-update build target and test.

  18. Shrink Unicode category table.

  19. Make some error strings more generic

  20. pg_upgrade: copy locale and encoding information to new cluster.

  21. Update Unicode data to Unicode 15.0.0

  22. Create a new type category for "internal use" types.