Ah yes so Microsoft and Oracle do these things for no good reason, you are the one making unsubstantiated claims such as "you can't do much better". And "You simply can't decide what plan you need to use based on the query and its parameters alone" which is mostly what those systems do (along with statistics). If you bothered to read what I linked you could see exactly how they are doing it.
I never said it was simple, in fact I said how primitive PG is compared to the "big boys" because they put huge effort into making their systems fast back in the TPS wars of the early 2000's on much slower hardware.
>Prepared statements != cached execution plans
Thats exactly what a prepared statement is:
https://en.wikipedia.org/wiki/Prepared_statement
