[LUCENE-7798] add equals/hashCode to ToParentBlockJoinSortField

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 6.6, 7.0
• Component/s: modules/join
• Lucene Fields: New
• Assignee: Mikhail Khludnev
• Reporter: Mikhail Khludnev
• Created: 21/Apr/17 20:14
• Updated: 19/Sep/19 16:32
• Resolved: 29/Apr/17 19:18

Description

Since SOLR-10521 ToParentBlockJoinSortField is going to be used as query result key, therefore it's worth to implemend proper equality methods.

Issue Links

• is related to: LUCENE-4774 Add FieldComparator that allows sorting parent docs based on field inside the child docs
• is related to: SOLR-10521 sort by string field of the nested child when searching with {!parent}