As I understand from looking at https://issues.apache.org/jira/login.jsp?os_destination=/browse/SOLR-236 field collapsing has been disabled on multi-valued fields. Is this really necessary?
Let's say I have a multi-valued field, 'my-mv-field'. I have a query like (my-mv-field:1 OR my-mv-field:5) that returns docs with the following values for 'my-mv-field': Doc1: 1, 2, 3, Doc2: 1, 3 Doc3: 2, 4, 5, 6 Doc4: 1 If I collapse on that field with that query I imagine it should mean 'collect the docs, starting from the top, so that I find 1 and 5'. In this case if it returned Doc1 and Doc3 I would be happy. There must be some ambiguity or implementation detail I am unaware that is preventing this. It may be a critical piece of functionality for an application I'm working on, so I'm curious if there is point in pursuing development of this functionality or if I am missing something. Thanks, Kallin Nagelberg
