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Re: ICU for global collation

Peter Eisentraut <peter.eisentraut@enterprisedb.com>

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From: Peter Eisentraut <peter.eisentraut@enterprisedb.com>
To: Marina Polyakova <m.polyakova@postgrespro.ru>, Kyotaro Horiguchi <horikyota.ntt@gmail.com>
Cc: pgsql-hackers@postgresql.org, pryzby@telsasoft.com, rjuju123@gmail.com, daniel@manitou-mail.org, AndrewBille@gmail.com, michael@paquier.xyz
Date: 2022-09-16T07:56:31Z
Lists: pgsql-hackers 
On 15.09.22 17:41, Marina Polyakova wrote:
> I agree with you. Here's another version of the patch. The 
> locale/encoding checks and reports in initdb have been reordered, 
> because now the encoding is set first and only then the ICU locale is 
> checked.

I committed something based on the first version of your patch.  This 
reordering of the messages here was a little too much surgery for me at 
this point.  For instance, there are also messages in #ifdef WIN32 code 
that would need to be reordered as well.  I kept the overall structure 
of the code the same and just inserted the additional proposed checks.

If you want to pursue the reordering of the checks and messages overall, 
a patch for the master branch could be considered.

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 Fix outdated --help message for postgres -f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