On Tue, Mar 9, 2021 at 09:33:31PM +0000, Bossart, Nathan wrote: > I'm cautiously optimistic that index creation and deletion will not > require too much extra work. For example, if a new index needs to > point to a partial heap only tuple, it can do so (unlike HOT, which > would require that the new index point to the root of the chain). The > modified-columns bitmaps could include the entire set of modified > columns (not just the indexed ones), so no additional changes would > need to be made there. Furthermore, I'm anticipating that the > modified-columns bitmaps will end up only being used with the > redirected LPs to help reduce heap bloat after single-page vacuuming. > In that case, new indexes would probably avoid the existing bitmaps > anyway.
Yes, that would probably work, sure. -- Bruce Momjian <br...@momjian.us> https://momjian.us EDB https://enterprisedb.com The usefulness of a cup is in its emptiness, Bruce Lee
