| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Kouhei Kaigai <kaigai(at)ak(dot)jp(dot)nec(dot)com> |
| Cc: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: CustomScan support on readfuncs.c |
| Date: | 2015-11-12 12:45:00 |
| Message-ID: | CA+TgmoZE8ZYxpi5EGWhG4y1eQRk6vH4vjUvBmeih3kQtWmA88w@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Mon, Nov 9, 2015 at 9:46 PM, Kouhei Kaigai <kaigai(at)ak(dot)jp(dot)nec(dot)com> wrote:
> The attached main patch (custom-scan-on-readfuncs.v3.patch) once
> removes TextOutCustomScan, thus all the serialized tokens become
> known to the core backend, and add _readCustomScan() at readfuncs.c.
> It deserializes CustomScan nodes from cstring tokens, especially,
> reloads the pointer of CustomScanMethods tables using a pair of
> library name and symbol name.
> Thus, it also requires custom scan providers to keep the methods
> table visible from external objects.
Committed with some kibitzing.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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