uschindler commented on PR #12135:
URL: https://github.com/apache/lucene/pull/12135#issuecomment-1425779002

   > I see this as a feature, not a bug. As you can see, left unchecked, 
"database functionality" can be quite invasive on the codebase.
   
   The separate query is of course fine, the problem is only that child nodes 
of the IndexOrDocavlauesQuery may have an expensive ctor (like the one 
popuplating PrefixCodedTerms).
   
   Basically if all would be in MTQ rewrite this could be handled. If we keep 
IndexOrDocvaluesQuery we would need to make the soring and PrefixCodedTerms 
lazy. A good idea would be to make the ctor arguments of IndexOrDocvaluesQuery 
lazy (producers or functions) and the actual rewrite will create the 
subqueries. But this would break equals and hashcode, as IndexOrDocavluesQuery 
relies on the hashcode and equals of the childs.
   
   Because of this MTQ would be much better. The MTQ instance knows everything 
for equals/hashcode and the rewritten form is lazily created.


-- 
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

Reply via email to