| From: | Dmitry Dolgov <9erthalion6(at)gmail(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Artur Zakirov <a(dot)zakirov(at)postgrespro(dot)ru>, Robert Haas <robertmhaas(at)gmail(dot)com>, Aleksander Alekseev <a(dot)alekseev(at)postgrespro(dot)ru>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Victor Wagner <vitus(at)wagner(dot)pp(dot)ru>, Haribabu Kommi <kommi(dot)haribabu(at)gmail(dot)com> |
| Subject: | Re: [PATCH] Generic type subscription |
| Date: | 2017-02-05 10:28:51 |
| Message-ID: | CA+q6zcWA8asrs66Y_zpW2NRN_HP5xnpbJ4kLEziKOE3NOFVLow@mail.gmail.com |
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| Lists: | pgsql-hackers |
On 24 January 2017 at 02:36, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> It might be possible to get away with having only one pg_type column,
> pointing at the parse-analysis function. That function would generate
> a SubscriptingRef tree node containing the OID of the appropriate
> execution function, which execQual.c could call without ever knowing
> its name explicitly.
Btw, is it acceptable if such generated SubscriptingRef will contain just a
function pointer to the appropriate execution function instead of an OID
(e.g.
like `ExprStateEvalFunc`)? It will help to avoid problems in case of
extensions.
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