Re: plan shape work - Mailing list pgsql-hackers

From Tom Lane
Subject Re: plan shape work
Date
Msg-id 3977574.1758854240@sss.pgh.pa.us
Whole thread Raw
In response to Re: plan shape work  (Richard Guo <guofenglinux@gmail.com>)
Responses Re: plan shape work
List pgsql-hackers
Richard Guo <guofenglinux@gmail.com> writes:
> FWIW, I'm a bit concerned about the double for loop inside
> choose_plan_name(), especially since the outer loop runs with a true
> condition.  Maybe I'm just worrying over nothing, as we probably don't
> expect a large number of subroots in practice, but the nested loops
> still make me a little uneasy.

I really doubt that a query could have enough subplans to make
that a problem.  But if I'm wrong, it's surely something we could
improve in a localized way later.

            regards, tom lane



pgsql-hackers by date:

Previous
From: Michael Paquier
Date:
Subject: Re: [BUG] temporary file usage report with extended protocol and unnamed portals
Next
From: Yugo Nagata
Date:
Subject: Re: Suggestion to add --continue-client-on-abort option to pgbench