Re: EXPLAIN IndexOnlyScan shows disabled when enable_indexonlyscan=on - Mailing list pgsql-hackers

From David G. Johnston
Subject Re: EXPLAIN IndexOnlyScan shows disabled when enable_indexonlyscan=on
Date
Msg-id CAKFQuwaC6E02tnDKFzf4CWhpjJYAv4XfZoMuBn_a07QnYeRb1Q@mail.gmail.com
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In response to Re: EXPLAIN IndexOnlyScan shows disabled when enable_indexonlyscan=on  (David Rowley <dgrowleyml@gmail.com>)
List pgsql-hackers
On Monday, October 21, 2024, David Rowley <dgrowleyml@gmail.com> wrote:
On Tue, 22 Oct 2024 at 14:46, David G. Johnston
<david.g.johnston@gmail.com> wrote:
> We should probably at least improve the documentation in 19.17.1; this interaction is apparently not self-evident.
>
> enable_indexscan
>
> Enable or disable the planner’s use of both index-scan and index-only-scans plan types.
>
> enabled_indexonlyscan
>
> Set to off to disable index-only-scan plan type while leaving index-scan plan types enabled.  This setting has no effect if enable_indexscan is set to off.

Yeah, I agree. The documentation could better reflect the current behaviour.

Do you want to submit that in patch form?

Will do tomorrow.

David J.
 

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