On Fri, Jul 2, 2021 at 12:50 AM Bruce Momjian <br...@momjian.us> wrote: > > On Thu, Jul 1, 2021 at 03:13:30PM +0100, Simon Riggs wrote: > > On Wed, Jun 30, 2021 at 11:20 PM Bruce Momjian <br...@momjian.us> wrote: > > > > * "row expiration" is a term not currently used in PG docs, so we > > > > should probably look for something else. > > > > > > Yeah, I changed that to "removing dead rows" which seems to be our > > > standard text. > > > > What you have now looks great for this feature, thanks. > > Good. > > > > > There are 2 important features here, so the 2nd feature is worth > > > > mentioning also: > > > > > > > > Avoid spurious waits in concurrent indexing > > > > > > > > Previously, multiple concurrent index operations could deadlock or > > > > cause long waits. > > > > Waits are avoided except for indexes with expressions, or WHERE > > > > predicates. > > > > > > OK, I added text to the bottom to try and capture that; new patch > > > attached, now with UTF8 encoding. > > > > The text from "This also avoids..." tries to explain this, but they > > are two separate features, each important in its own right. > > > > So regrettably, this part doesn't capture it, for me. > > I see what you mean. This is in the VACUUM section, and this feature, > though from the same commits, has nothing to do with vacuum. Attached > is an updated patch.
Perfect, many thanks. -- Simon Riggs http://www.EnterpriseDB.com/
