[SOLR-6234] Scoring modes for query time join

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 5.3
• Fix Version/s: 5.3
• Component/s: query parsers
• Labels: features patch test
• Assignee: Mikhail Khludnev
• Reporter: Mikhail Khludnev
• Created: 09/Jul/14 19:33
• Updated: 29/Jan/20 12:44
• Resolved: 31/Jul/15 17:13

Description

it adds ability to call Lucene's JoinUtil by specifying local param, ie {!join score=...}.... It supports:

• score=none|avg|max|total local param (passed as ScoreMode to JoinUtil)
• supports b=100 param to pass Query.setBoost() postponed till SOLR-7814.
• multiVals=true|false is introduced YAGNI, let me know otherwise.
• there is a test coverage for cross core join case.
• so far it joins string and multivalue string fields (Sorted, SortedSet, Binary), but not Numerics DVs. follow-up LUCENE-5868

Issue Links

• depends upon: SOLR-6357 Using query time Join in deleteByQuery throws ClassCastException
• is related to: LUCENE-6332 join query scanning "toField" docValue
• is related to: SOLR-2272 Join
• is related to: LUCENE-4043 Add scoring support for query time join
• is related to: SOLR-4905 Allow fromIndex parameter to JoinQParserPlugin to refer to a single-sharded collection that has a replica on all nodes
• is related to: SOLR-9217 {!join score=..}.. should delay join to createWeight
• is related to: SOLR-4307 Solr join scoring
• relates to: LUCENE-5868 JoinUtil support for NUMERIC docValues fields
• relates to: SOLR-14230 Enforce field type constraints and document `score` {!join}
• relates to: SOLR-8395 query-time join (with scoring) for single value numeric fields::6.x ONLY

Sub-Tasks

• support SolrCloud collection as fromIndex param in query-time join: Closed
• score join query should add debug info as Solr's join: Closed
• local param b=5.5 support across all qparser: Closed