Re: index-only scans - Mailing list pgsql-hackers

From Tom Lane
Subject Re: index-only scans
Date
Msg-id 23689.1318012847@sss.pgh.pa.us
Whole thread Raw
In response to index-only scans  (Robert Haas <robertmhaas@gmail.com>)
Responses Re: index-only scans
Re: index-only scans
Re: index-only scans
List pgsql-hackers
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


pgsql-hackers by date:

Previous
From: Bruce Momjian
Date:
Subject: Re: pg_upgrade - add config directory setting
Next
From: "Joshua D. Drake"
Date:
Subject: Re: index-only scans