| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Etsuro Fujita <fujita(dot)etsuro(at)lab(dot)ntt(dot)co(dot)jp> |
| Cc: | "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Obsolete comment in tidpath.c |
| Date: | 2015-10-06 21:01:06 |
| Message-ID: | CA+TgmoYQN00XB9HJnGNPx7HtSi9f9anTakXxJxK9Wgq_5Y1F2Q@mail.gmail.com |
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On Mon, Oct 5, 2015 at 3:05 AM, Etsuro Fujita
<fujita(dot)etsuro(at)lab(dot)ntt(dot)co(dot)jp> wrote:
> I think "best_inner_indexscan()" in the following comment in tidpath.c
> is obsolete.
>
> * There is currently no special support for joins involving CTID; in
> * particular nothing corresponding to best_inner_indexscan(). Since it's
> * not very useful to store TIDs of one table in another table, there
> * doesn't seem to be enough use-case to justify adding a lot of code
> * for that.
>
> How about s/best_inner_indexscan()/parameterized scans/?
I'm not sure that's altogether clear.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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