| From: | Peter Eisentraut <peter_e(at)gmx(dot)net> |
|---|---|
| To: | pgsql-hackers(at)postgresql(dot)org |
| Cc: | Simon Riggs <simon(at)2ndquadrant(dot)com> |
| Subject: | Re: Index Tuning Features |
| Date: | 2006-10-10 16:06:09 |
| Message-ID: | 200610101806.10420.peter_e@gmx.net |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
Simon Riggs wrote:
> For 8.3, I'd like to add the following two related features to assist
> with Index Tuning and usability:
>
> - Virtual Indexes
This seems useful, but I'm not sure we need a catalog object for that.
It might be sufficient to declare these hypothetical indexes within the
EXPLAIN command. That is after all the only place where they are
applied.
> - RECOMMEND command
>
> Similar in usage to an EXPLAIN, the RECOMMEND command would return a
> list of indexes that need to be added to get the cheapest plan for a
> particular query (no explain plan result though).
This functionality also seems useful, but maybe it should be the job of
a user-space tool?
--
Peter Eisentraut
http://developer.postgresql.org/~petere/
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Tom Lane | 2006-10-10 16:06:13 | Re: Index Tuning Features |
| Previous Message | Simon Riggs | 2006-10-10 15:45:25 | Index Tuning Features |