On Sat, Feb 12, 2022 at 2:35 AM Robert Haas <robertmh...@gmail.com> wrote:
> > Imagine that I am using the "foo" tableam with "compression=lots" and > I want to switch to the "bar" AM which does not support that option. > If I remove the "compression=lots" option using a separate command, > the "foo" table AM may rewrite my whole table and decompress > everything. Then when I convert to the "bar" AM it's going to have to > be rewritten again. That's painful. I clearly need some way to switch > AMs without having to rewrite the table twice. > I agree with you, if we force users to drop the option as a separate command then we will have to rewrite the table twice. > It's also interesting to consider the other direction. If I am > switching from "bar" to "foo" I would really like to be able to add > the "compression=lots" option at the same time I make the switch. > There needs to be some syntax for that. > > One way to solve the first of these problem is to silently drop > unsupported options. Maybe a better way is to have syntax that allows > you to specify options to be added and removed at the time you switch > AMs e.g.: > +1 -- Regards, Dilip Kumar EnterpriseDB: http://www.enterprisedb.com
