Horton

Re: index-only scans

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

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Robert Haas <robertmhaas@gmail.com>
Cc: pgsql-hackers@postgresql.org
Date: 2011-10-07T18:40:47Z
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 →

  1. Reduce the alignment requirement of type "name" from int to char, and arrange

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?

			regards, tom lane