Dinko Papak <rimokato...@outlook.com> writes:
> Here are 3 interesting (to me) numbers:
> 1. creating index on expression (func(timestamp)) takes 5 seconds
> 2. creating check constraint on the same expression takes 10 seconds
> 3. adding partition table based on the same expression without check
> expression takes 20 seconds (this has been resolved by answer from David
> Rowley)
Hmm ...
> Is it possible to use indices to create check expressions?
No.
> Why is 2. twice as long as 1.?
Good question. Could you provide a concrete test case?
regards, tom lane
