Re: Problem in 'ORDER BY' of a column using a created collation?
Nishant Sharma <nishant.sharma@enterprisedb.com>
From: Nishant Sharma <nishant.sharma@enterprisedb.com>
To: Daniel Verite <daniel@manitou-mail.org>
Cc: Robert Haas <robertmhaas@gmail.com>, pgsql-hackers@postgresql.org
Date: 2025-10-03T06:14:38Z
Lists: pgsql-hackers
Thanks Daniel for the confirmation! Looks like nothing more needed as the issue is already reported with OCI. Regards, Nishant Sharma, EDB, Pune. On Thu, Oct 2, 2025 at 4:41 PM Daniel Verite <daniel@manitou-mail.org> wrote: > Nishant Sharma wrote: > > > Testing sort order for '1' & 'a' using ICU library with collation = > > 'ja-u-kr-latn-digit' > > > > With Method ucol_strcollUTF8(): > > SORT ORDER ASC : '1', 'a' > > > > With Method ucol_nextSortKeyPart() (i.e transform and memcmp): > > SORT ORDER ASC : 'a', '1' > > Yes, ucol_strcoll() with kr-latn-digit has been flawed for a > long time [1] and still is in the development branch of ICU. > > There's a recent ticket about this [2] with a reproducer similar > to yours. > > > [1] > > https://www.postgresql.org/message-id/flat/153201618542.1404.3611626898935613264%40wrigleys.postgresql.org > [2] https://unicode-org.atlassian.net/browse/ICU-23016 > > > Best regards, > -- > Daniel Vérité > https://postgresql.verite.pro/ >