Re: [BUGS] Crash report for some ICU-52 (debian8) COLLATE andwork_mem values

On Mon, Aug 7, 2017 at 10:30 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> So they added emojis (I'm with Peter G that we could do without installing
> that by default) ... but what became of the af-NA and af-ZA collations?
> If I were a user who'd adopted one of those as a database collation,
> I'd be seriously unhappy to have them go away in a later PG release.
>
> I think we'd be well advised to filter the set of installed-by-default
> collations rather strongly, in hope of avoiding such problems.  For
> starters, do we really need the keyword variants at all?  People who
> know what those are for can create their own collations, and take
> their own risks of the feature disappearing in later ICU releases.

Actually, I think I was wrong about it being possible to create the
collations after the fact. CREATE COLLATION simply doesn't support
that. This surprised me.

-- 
Peter Geoghegan


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