Which is very often a good thing. I have tuned more than one query by moving a sub-query/derived table into a CTE. What bothers me more, that a CTE prevents pa

Which is very often a good thing. I have tuned more than one query by moving a sub-query/derived table into a CTE. What bothers me more, that a CTE prevents parallel execution, but I think that too is fixed with Postgres 12