Hello! Having this simple query: (and "some_id" being a foreing key)
select * from my_table where (some_id is null) uses the index... but select * from my_table where (some_id is not null) doesn't uses it. Now the table is quite small, so I have no performance issues, but can I do something for the future? Is the any better way of having all records with not null IDs? Thanks! -sergio [Non-text portions of this message have been removed]
