Horton

Re: Crash report for some ICU-52 (debian8) COLLATE and work_mem values

Peter Eisentraut <peter.eisentraut@2ndquadrant.com>

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From: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
To: Peter Geoghegan <pg@bowt.ie>, Tom Lane <tgl@sss.pgh.pa.us>
Cc: Daniel Verite <daniel@manitou-mail.org>, PostgreSQL mailing lists <pgsql-bugs@postgresql.org>
Date: 2017-08-07T22:07:18Z
Lists: pgsql-bugs, pgsql-hackers 
On 8/7/17 16:21, Peter Geoghegan wrote:
> Even MongoDB has ICU support these days. They specifically document
> which collations are supported. It's just the same for DB2, and other
> systems that build their collations on ICU. Users do not "use the ICU
> collations" on these other systems. They simply use the collations
> that are available, choosing from a list in the documentation, or
> possibly create their own collations with their own customization.

We cannot know what versions of ICU or a C library users would build
PostgreSQL with, so I don't see how we can provide a definite list of
available locales, other than at run time like we do now.

-- 
Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

Commits

  1. Reject use of ucol_strcollUTF8() before ICU 53

  2. Rethink behavior of pg_import_system_collations().

  3. Faster expression evaluation and targetlist projection.