On Wed, Jul 31, 2019 at 11:38 AM Igal @ Lucee.org <igal(at)lucee(dot)org> wrote:
> alter table some_table
> rename column amount_num to amount_text;
>
> alter table some_table
> drop column amount_num;
>
You just renamed amount_num to amount_text so I'm not sure why you expect
the drop to succeed.
Would it have less locking than simply altering the column?
>
I doubt anything will improve upon simply altering the column. You have to
perform a full table rewrite in either case which is going to be the main
resource consumer.
David J.