Hi all,
I have a recursive part in my database logic that I want to isolate and reuse as a view. I had found a blog that explained how move a function parameter into a view. The SQL is in attachment.
When I write a query based on that view with a fixed value (or values) for the (input) parameter, the planner does fine and only evaluates the function once.
However, when the value of the parameter should be deduced from something else, the planner doesn't understand that and will evaluate the function for each possible value.
Any pointers to what I'm doing wrong or on how to optimize it?
Attachment contains the queries and explain plans.
Thanks!
Kind regards,
Mathieu
