Re: ICU for global collation

Julien Rouhaud <rjuju123@gmail.com>

From: Julien Rouhaud <rjuju123@gmail.com>
To: "Finnerty, Jim" <jfinnert@amazon.com>
Cc: Peter Eisentraut <peter.eisentraut@enterprisedb.com>, pgsql-hackers <pgsql-hackers@postgresql.org>, Daniel Verite <daniel@manitou-mail.org>
Date: 2022-01-06T14:45:43Z
Lists: pgsql-hackers
On Thu, Jan 06, 2022 at 01:55:55PM +0000, Finnerty, Jim wrote:
> 
> I didn't notice anything version-specific about the patch.  Would any
> modifications be needed to backport it to pg13 and pg14?

This is a new feature so it can't be backported.  The changes aren't big and
mostly touches places that didn't change in a long time so I don't think that
it would take much effort if you wanted to backport it on your own forks.

> After this patch goes in, the big next thing would be to support
> nondeterministic collations for LIKE, ILIKE and pattern matching operators in
> general.  Is anyone interested in working on that?

As far as I know you're the last person that seemed to be working on that topic
back in March :)



Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →
  1. Add CHECK_FOR_INTERRUPTS while restoring changes during decoding.

  2. Improve ICU option handling in CREATE DATABASE

  3. Don't allow creation of database with ICU locale with unsupported encoding

  4. Make locale option behavior more consistent

  5. pg_dump: Dump colliculocale

  6. Remove further unwanted linker flags from perl_embed_ldflags

  7. Doc: document possible need to raise kernel's somaxconn limit.

  8. Reduce warnings with -Wshadow=compatible-local builds

  9. Remove redundant spaces in _outA_Expr() output

  10. Fix outdated --help message for postgres -f

  11. pg_upgrade: Fix version comparison for global ICU support

  12. Silence -Wmaybe-uninitialized compiler warning in dbcommands.c.

  13. Add option to use ICU as global locale provider

  14. DefineCollation() code cleanup

  15. Change collate and ctype fields to type text

  16. Call pg_newlocale_from_collation() also with default collation

  17. Use libc version as a collation version on glibc systems.

  18. Silence -Wmaybe-uninitialized compiler warnings in dbcommands.c.

  19. Make LC_COLLATE and LC_CTYPE database-level settings. Collation and