Re: [PATCH] Add extra statistics to explain for Nested Loop - Mailing list pgsql-hackers

From Julien Rouhaud
Subject Re: [PATCH] Add extra statistics to explain for Nested Loop
Date
Msg-id 20220329025343.5i55pjpw2kuqboou@jrouhaud
Whole thread Raw
In response to Re: [PATCH] Add extra statistics to explain for Nested Loop  (Greg Stark <stark@mit.edu>)
Responses Re: [PATCH] Add extra statistics to explain for Nested Loop
List pgsql-hackers
Hi,

On Mon, Mar 28, 2022 at 03:09:12PM -0400, Greg Stark wrote:
> This patch got some very positive feedback and some significant amount
> of work earlier in the release cycle. The feedback from Julien earlier
> this month seemed pretty minor.
> 
> Ekaterina, is there any chance you'll be able to work on this this
> week and do you think it has a chance of making this release? Julien,
> do you think it's likely to be possible to polish for this release?

Most of the comments I have are easy to fix.  But I think that the real problem
is the significant overhead shown by Ekaterina that for now would apply even if
you don't consume the new stats, for instance if you have pg_stat_statements.
And I'm still not sure of what is the best way to avoid that.



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