| From: | Pantelis Theodosiou <ypercube(at)gmail(dot)com> |
|---|---|
| To: | Joel Jacobson <joel(at)trustly(dot)com> |
| Cc: | Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Idea on how to simplify comparing two sets |
| Date: | 2017-02-08 09:24:15 |
| Message-ID: | CAE3TBxwnn51B2pz9rrHU1exgKbLqQZgE3Hs9npzjUC0yxAMdnQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Feb 7, 2017 at 3:13 PM, Joel Jacobson <joel(at)trustly(dot)com> wrote:
> Hi hackers,
>
> Currently there is no simple way to check if two sets are equal.
>
> Looks like no RDBMS in the world has a simple command for it.
>
> You have to do something like:
>
> ...
>
> Introducing new SQL keywords is of course not an option,
> since it would possibly break backwards compatibility.
>
>
I'm not advocating it but I don't see how introducing new SQL keywords
breaks backwards compatibility.
Pantelis Theodosiou
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