[LUCENE-7452] improve exception message: child query must only match non-parent docs, but parent docID=180314...

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 6.2
• Fix Version/s: 6.3, 7.0
• Component/s: core/search
• Lucene Fields: New
• Assignee: Mikhail Khludnev
• Reporter: Mikhail Khludnev
• Created: 20/Sep/16 18:52
• Updated: 28/Aug/22 15:03
• Resolved: 25/Sep/16 12:00

Description

when parent filter intersects with child query the exception exposes internal details: docnum and scorer class. I propose an exception message to suggest to execute a query intersecting them both. There is an opinion to add this suggestion in addition to existing details.
My main concern against is, when index is constantly updated even SOLR-9582 allows to search for docnum it would be like catching the wind, also think about cloud case. But, user advised with executing query intersection can catch problem documents even if they occurs sporadically.

Issue Links

• relates to: LUCENE-4968 Several ToParentBlockJoinQuery/Collector issues
• relates to: SOLR-3076 Solr(Cloud) should support block joins
• relates to: SOLR-9528 Make _docid_ (lucene id) a pseudo field
• links to: ref guide update