Josh Berkus <josh(at)agliodbs(dot)com> writes:
> After having some production issues, I did some testing and it seems
> that any SQL function declared STRICT will never inline.
It won't unless the planner can prove that the resulting expression
behaves the same, ie, is also strict for *all* the parameters. Which
in most cases isn't true, or at least is very difficult to prove.
This is not a bug.
regards, tom lane