| From: | Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at> |
|---|---|
| To: | Joel Jacobson <joel(at)compiler(dot)org>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Cc: | Arne Roland <arne(dot)roland(at)malkut(dot)net>, Anders Granlund <anders(dot)granlund(dot)0(at)gmail(dot)com>, Andreas Karlsson <andreas(at)proxel(dot)se>, Vik Fearing <vik(at)chouppes(dot)com> |
| Subject: | Re: Key joins |
| Date: | 2026-05-29 16:20:19 |
| Message-ID: | 348b4bd1d4215d475952b7f5527a092a1491a2c1.camel@cybertec.at |
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| Lists: | pgsql-hackers |
On Fri, 2026-05-29 at 15:21 +0200, Joel Jacobson wrote:
> In the spirit of looking more like SQL, how about replacing the
> > arrows with FROM and TO?
>
> We actually originally considered TO and FROM as keywords for indicating
> direction, but FROM in a join clause causes confusion with the FROM
> clause itself. Our user discussions over the last three years indicates
> that arrows are clearer and less ambiguous.
>
> It's also worth to mention that SQL/PGQ also uses ASCII arrows to
> indicate direction for its graph pattern syntax.
I understand the problem with FROM, and I have no objection to the
arrows.
Yours,
Laurenz Albe
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