From: | Michael Banck <michael(dot)banck(at)credativ(dot)de> |
---|---|
To: | Daniel Gustafsson <daniel(at)yesql(dot)se> |
Cc: | Andreas Karlsson <andreas(at)proxel(dot)se>, "孙诗浩(思才)" <sunshihao(dot)ssh(at)alibaba-inc(dot)com>, "pgsql-hackers(at)lists(dot)postgresql(dot)org" <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
Subject: | Re: add operator ^= to mean not equal (like != and <>) |
Date: | 2021-08-10 21:14:13 |
Message-ID: | 6112ec26.1c69fb81.1c076.3806@mx.google.com |
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Lists: | pgsql-hackers |
Hi,
On Tue, Aug 10, 2021 at 11:13:03AM +0200, Daniel Gustafsson wrote:
> > On 10 Aug 2021, at 11:10, Andreas Karlsson <andreas(at)proxel(dot)se> wrote:
> > What is he reason you want to add ^= is there any other databases
> > which uses ^= for inequality?
>
> I assume it's because of Oracle compatibility which AFAIK is the only
> database supporting ^=.
DB2 also supports (or supported) it, but it's deprecated:
https://www.ibm.com/docs/en/db2/9.7?topic=predicates-basic-predicate
We encountered it at least in one customer setting, so we added it to
db2fce:
https://github.com/credativ/db2fce/blob/master/db2fce.sql#L588
Michael
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