| From: | Junwang Zhao <zhjwpku(at)gmail(dot)com> |
|---|---|
| To: | assam258(at)gmail(dot)com |
| Cc: | Ashutosh Bapat <ashutosh(dot)bapat(dot)oss(at)gmail(dot)com>, Peter Eisentraut <peter(at)eisentraut(dot)org>, zengman <zengman(at)halodbtech(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: | 2026-03-29 01:40:22 |
| Message-ID: | CAEG8a3KSHbL7BJ=PGOGWA5CkLMYh=V2NoH40sJssaV+SJhfjtQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Sat, Mar 28, 2026 at 10:43 PM Henson Choi <assam258(at)gmail(dot)com> wrote:
>>
>> Okay, thanks for sharing this. My copy of SQL/PGQ seems
>> incomplete, it only includes subclauses 7.1 and 7.2 ;(
>
>
> To clarify: the lateral join rule is in Section 7.1 of ISO/IEC
> 9075-16, which you already have. The first line of Section 7.1
> says it modifies Subclause 7.6 ("<table reference>") of ISO/IEC
> 9075-2, and its Syntax Rule 1 augments SR 5 of that subclause
> by adding <graph table derived table> to the list of <table
> primary>s that support lateral join.
Yeah, you are right, I see that part.
--
Regards
Junwang Zhao
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