Indeed, Result Grouping supports distributed search. I see this documented
in its ref guide page (at the bottom), and also tested --
TestDistributedGrouping. I wish Result Grouping functionality was better
separated. I suppose QueryComponent isn't *too* bad, because of the method
based organizat
It's been a while since I don't check that, @jason do you mean that:
1) results grouping happens after shard aggregations
2) field collapsing happens before shard aggregations
Literally shooting in the dark, just reading the email, with zero time to
investigate, but in general, I'm in favour of de
I'm not against deprecating "Result Grouping" per-se, but it has one
huge advantage over Collapse/Expand: Result Grouping is the only
approach that supports multi-shard.
Should we come up with a plan for that and other gaps before we
deprecate Result Grouping? Deprecating the feature before there
Solr has supported Result Grouping[1] for a long time but has mostly been
duplicative with Collapse & Expand[2]. At the start of the RG docs,
there's this notice which I wrote many (10?) years ago:
> Prefer Collapse & Expand instead
> Solr’s Collapse and Expand Results feature is newer and mostly
