Re: Collation version tracking for macOS

Joe Conway <mail@joeconway.com>

From: Joe Conway <mail@joeconway.com>

To: Jeff Davis <pgsql@j-davis.com>, Robert Haas <robertmhaas@gmail.com>, Thomas Munro <thomas.munro@gmail.com>

Cc: Peter Eisentraut <peter.eisentraut@enterprisedb.com>, Jeremy Schneider <schneider@ardentperf.com>, Peter Geoghegan <pg@bowt.ie>, "Finnerty, Jim" <jfinnert@amazon.com>, "Nasby, Jim" <nasbyj@amazon.com>, Tom Lane <tgl@sss.pgh.pa.us>, pgsql-hackers <pgsql-hackers@postgresql.org>

Date: 2022-11-29T19:34:03Z

Lists: pgsql-hackers

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Fix copy&paste typo in comment
- 402388946fb3 17.0 cited

On 11/29/22 13:59, Jeff Davis wrote:
> On Tue, 2022-11-29 at 11:27 -0500, Joe Conway wrote:
>> My vote is for something like #5. The collversion should indicate a 
>> specific immutable ordering behavior.
> 
> Easier said than done:
> https://www.postgresql.org/message-id/abddc35a7a447d93e2b8371a1a9052cb48866070.camel@j-davis.com
> 
> Even pointing at a specific minor version doesn't guarantee that
> specific ICU code is loaded. It could also be a mix of different minor
> versions that happen to be installed.

I understand that it is not easily done, but if the combination of 
collprovider + collversion does not represent specific immutable 
ordering behavior for a given locale, what value is there in tracking it?

-- 
Joe Conway
PostgreSQL Contributors Team
RDS Open Source Databases
Amazon Web Services: https://aws.amazon.com