Re: SQL Property Graph Queries (SQL/PGQ)

From: Ashutosh Bapat <ashutosh(dot)bapat(dot)oss(at)gmail(dot)com>
To: Peter Eisentraut <peter(at)eisentraut(dot)org>
Cc: Junwang Zhao <zhjwpku(at)gmail(dot)com>, Amit Langote <amitlangote09(at)gmail(dot)com>, Vik Fearing <vik(at)postgresfriends(dot)org>, Ajay Pal <ajay(dot)pal(dot)k(at)gmail(dot)com>, Imran Zaheer <imran(dot)zhir(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: SQL Property Graph Queries (SQL/PGQ)
Date: 2025-12-02 06:56:15
Message-ID: CAExHW5sT4u0OGf0Ckx63XHUnyMYsbBKnoGpNVPK6+WNS58BCPw@mail.gmail.com
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On Tue, Nov 25, 2025 at 7:28 PM Peter Eisentraut <peter(at)eisentraut(dot)org> wrote:
>
> On 20.11.25 16:00, Ashutosh Bapat wrote:
> >> 5.
> >>
> >> src/backend/catalog/sql_features.txt
> >>
> >> +G034 Path concatenation YES SQL/PGQ required
> >>
> >> Do we support path concatenation?
> > I don't think so. But let Peter confirm it.
>
> AFAICT, path concatenation just allows that you can write multiple
> element patterns in a row, like ()-[]->(). I don't see how it could
> make sense to not support that.

Ah! I confused path concatenation with either path pattern list or
path pattern multiset alternation. Sorry.

--
Best Wishes,
Ashutosh Bapat

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