Re: index-only scans

Robert Haas <robertmhaas@gmail.com>

From: Robert Haas <robertmhaas@gmail.com>

To: Tom Lane <tgl@sss.pgh.pa.us>

Cc: pgsql-hackers@postgresql.org

Date: 2011-10-07T18:50:06Z

Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

Reduce the alignment requirement of type "name" from int to char, and arrange
- 5f6f840e93a3 8.4.0 cited

On Fri, Oct 7, 2011 at 2:40 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Robert Haas <robertmhaas@gmail.com> writes:
>> Please find attached a patch implementing a basic version of
>> index-only scans.
>
> I'm making some progress with this, but I notice what seems like a
> missing feature: there needs to be a way to turn it off.  Otherwise
> performance comparisons will be difficult to impossible.
>
> The most obvious solution is a planner control GUC, perhaps
> "enable_indexonlyscan".  Anyone object, or want to bikeshed the name?

I was expecting you to NOT want that, or I would have put it in to
begin with...  so go for it.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
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