[LUCENE-3759] Support joining in a distributed environment.

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: modules/join
• Lucene Fields: New
• Assignee: Unassigned
• Reporter: Martijn van Groningen
• Created: 07/Feb/12 22:52
• Updated: 28/Aug/22 13:07

Description

Add two more methods in JoinUtil to support joining in a distributed manner.

• Method to retrieve all from values.
• Method to create a TermsQuery based on a set of from terms.

With these two methods distributed joining can be supported following these steps:

1. Retrieve from values from each shard
2. Merge the retrieved from values.
3. Create a TermsQuery based on the merged from terms and send this query to all shards.