Subject RE: [firebird-support] Rebuilding primary key index?
Author Leyne, Sean
Kjell,

> Apparently it's not possible to deactivate a primary key index. Seems
> reasonable. So, how do I rebuild it?

Why do you need to rebuild it?

Unlike user indexes, primary key indexes have a fixed selectivity which means that they never become "unbalanced" -- so they never need to be re-indexed.


> Would require I make sure no dups are entered while the PK constraint is not
> present. I guess I could add a unique constraint first, then drop the pk, then
> add the pk and finally drop the unique constraint. But seems like I would be
> building essentially the same index twice, while once should suffice.

You should be able to test for uniqueness using a simple SQL statement, without have to use constraints.


Sean