Subject: Re: ICU integration
To: Doug Doole <ddoole@salesforce.com>
References: <85364fde-091f-bbc0-fec2-e3ede39840a6@2ndquadrant.com>
 <CAMsr+YE27yoX7fF40k+5swo+2cWguV0j6jtkWKj7RRowYGo9Sg@mail.gmail.com>
 <f0e24354-31f1-47cd-c384-e41d72d43e83@2ndquadrant.com>
 <51759C7D-BE9E-4173-B5F9-EFD7B9594C2B@salesforce.com>
 <f0adba2a-0846-cbbc-06eb-0f938c119aa9@2ndquadrant.com>
 <CAP6UvaNTvYXmsJTiDQKwKTBJhO-axRXBjWTXJ5oAonSFNJ514g@mail.gmail.com>
Cc: Craig Ringer <craig@2ndquadrant.com>,
 pgsql-hackers <pgsql-hackers@postgresql.org>
From: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
Organization: 2ndQuadrant
Message-ID: <6008673a-e371-8437-adc0-96fba4a74028@2ndquadrant.com>
Date: Wed, 7 Sep 2016 08:53:22 -0400
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:45.0)
 Gecko/20100101 Thunderbird/45.3.0
MIME-Version: 1.0
In-Reply-To: 
 <CAP6UvaNTvYXmsJTiDQKwKTBJhO-axRXBjWTXJ5oAonSFNJ514g@mail.gmail.com>
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
Precedence: bulk
Sender: pgsql-hackers-owner@postgresql.org

On 9/6/16 1:40 PM, Doug Doole wrote:
> We carried the ICU version numbers around on our collation and locale
> IDs (such as fr_FR%icu36) . The database would load multiple versions of
> the ICU library so that something created with ICU 3.6 would always be
> processed with ICU 3.6. This avoided the problems of trying to change
> the rules on the user. (We'd always intended to provide tooling to allow
> the user to move an existing object up to a newer version of ICU, but we
> never got around to doing it.) In the code, this meant we were
> explicitly calling the versioned API so that we could keep the calls
> straight.

I understand that in principle, but I don't see operating system
providers shipping a bunch of ICU versions to facilitate that.  They
will usually ship one.

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


-- 
Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-hackers