28.11.2019 23:25, Thomas Munro пишет:
> On Fri, Nov 29, 2019 at 9:08 AM Alexander Lakhin wrote:
>> So for now it seems dangerous to use predefined collations as their old
>> versions are not preserved by pg_upgrade and the user doesn't know which
>> indexes affected by the actual ICU collation cha
On Fri, Nov 29, 2019 at 9:08 AM Alexander Lakhin wrote:
> So for now it seems dangerous to use predefined collations as their old
> versions are not preserved by pg_upgrade and the user doesn't know which
> indexes affected by the actual ICU collation changes.
Yeah, we noticed this while working
Hello hackers,
When dealing with an OS upgrade, a some kind of anomaly related to
collations was found.
Suppose, we have Debian 8 with postgresql 12 installed.
Then we create a custom collation:
CREATE COLLATION russian (provider=icu, locale='ru_RU');
and
SELECT oid, collname, collnamespace, collp
