[SOLR-15180] SearchHandler could prune uniqueKey queries

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: search
• Assignee: Unassigned
• Reporter: Mike Drob
• Created: 22/Feb/21 23:12
• Updated: 23/Feb/21 16:22

Description

When doing a query that includes an id, we should be able to prune which shards need to be distributed to.

This can be done explicitly by the user with _route_, but I think Solr should be able to automatically infer that value in some cases.

Other wish list items: we can potentially apply this to filter queries as well, or to aliases.

The real-time-get handler already does intelligent routing to query only the relevant shards, hopefully that logic can be re-used.