From: | Peter Geoghegan <pg(at)heroku(dot)com> |
---|---|
To: | Marc-Olaf Jaschke <marc-olaf(dot)jaschke(at)s24(dot)com> |
Cc: | pgsql-bugs <pgsql-bugs(at)postgresql(dot)org> |
Subject: | Re: Missing rows with index scan when collation is not "C" (PostgreSQL 9.5) |
Date: | 2016-03-22 00:34:17 |
Message-ID: | CAM3SWZQiesUyoYdk01E2D+yAasdbVjZK30kJFuxq2fvbtkRkzw@mail.gmail.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-bugs pgsql-hackers |
On Mon, Mar 21, 2016 at 1:40 PM, Marc-Olaf Jaschke
<marc-olaf(dot)jaschke(at)s24(dot)com> wrote:
> PostgreSQL 9.5 ignores rows with the following test case:
At one point, Robert wrote a small self-contained tool to show OS
strxfrm() blobs:
It would be great if you showed us the output for your test case
strings, both on an affected and on an unaffected system. As Robert
mentioned, our use of strxfrm() quite reasonably relies on it
producing blobs that compare with strcmp() in a way that gives the
same result as a strcoll() on the original strings, per ISO C90.
Thanks
--
Peter Geoghegan
From | Date | Subject | |
---|---|---|---|
Next Message | Peter Geoghegan | 2016-03-22 00:44:41 | Re: Missing rows with index scan when collation is not "C" (PostgreSQL 9.5) |
Previous Message | Peter Geoghegan | 2016-03-22 00:27:13 | Re: Missing rows with index scan when collation is not "C" (PostgreSQL 9.5) |
From | Date | Subject | |
---|---|---|---|
Next Message | Stas Kelvich | 2016-03-22 00:41:58 | Re: [PATCH] we have added support for box type in SP-GiST index |
Previous Message | Peter Geoghegan | 2016-03-22 00:27:13 | Re: Missing rows with index scan when collation is not "C" (PostgreSQL 9.5) |