> I think if we don't see any impact then we should backpatch this
> patch. However, if we decide to go some other way, then I can provide
> a separate patch for back branches.  BTW, what is your opinion?

I could not find anything on backporting guidelines in the wiki but my opinion 
would be to backpatch the patch in total. With a different behaviour between 
the simple and extended query protocol it would be hard to debug query 
performance issue in user applications that uses PQprepare. If the user tries 
to replicate a query with a PREPARE in psql and tries to EXPLAIN EXECUTE it, 
the results would be different then what happens within the application. That 
behaviour could be confusing, like differences between EXPLAIN SELECT and 
EXPLAIN EXECUTE can be to less experienced users.

Best regards

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