Hi,

On Wed, Jun 7, 2023 at 7:28 PM Nishant Sharma
<nishant.sha...@enterprisedb.com> wrote:
> Etsuro's patch is also showing the correct output for "set 
> enable_nestloop=off". Looks good to me for back branches due to backport 
> issues.
>
> But below are a few observations for the same:-
> 1) I looked into the query plan for both "set enable_nestloop" on & off case 
> and observe that they are the same. That is, what we see with "set 
> enable_nestloop=on".
> 2) In back branches for "set enable_nestloop" on & off value, at least this 
> type of query execution won't make any difference. No comparison of plans to 
> be selected based on total cost of two plans old (Nested Loop with Foreign 
> Scans) & new (Only Foreign Scan) will be done, because we are avoiding the 
> call to "postgresGetForeignJoinPaths()" up front when we have pseudo 
> constants.

Thanks for looking!

Best regards,
Etsuro Fujita


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