mikemccand commented on PR #12829: URL: https://github.com/apache/lucene/pull/12829#issuecomment-1827825175
> using a doc-value field where only parents documents have a value for the field, and the value must be the number of child documents that the parent has This is a neat idea too -- would this maybe make completing the join at search time more efficient? Today we scan for the next set bit, but I guess with this approach, we'd still scan for the next `NumericDocValues` that is set, and then see the child count, but that would be sort of redundant (we could still subtract docids to get the number of children)? Also, I'm not sure how the nested case would be supported (same as the current PR's approach too). > This makes me wonder if Lucene could be adding this doc value field for root documents automatically, similarly to what it is doing for soft deletes? (Possibly in a follow-up PR) This is a nice idea too, but I think we'd still need user input to give us a free field name to use for this purpose. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org For additional commands, e-mail: issues-h...@lucene.apache.org
