[SERVER-67503] [CQF] $elemMatch with empty object misses results Created: 24/Jun/22  Updated: 29/Oct/23  Resolved: 07/Jul/22

Status: Closed
Project: Core Server
Component/s: None
Affects Version/s: None
Fix Version/s: 6.1.0-rc0

Type: Bug Priority: Major - P3
Reporter: Nicholas Zolnierz Assignee: Ben Shteinfeld
Resolution: Fixed Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Backwards Compatibility: Fully Compatible
Operating System: ALL
Participants:

 Description   

This test fails to find all of the matching documents when run through CQF, instead returning:

[js_test:elemmatch_object] 	[{
[js_test:elemmatch_object] 		"a" : [
[js_test:elemmatch_object] 			{
[js_test:elemmatch_object] 
[js_test:elemmatch_object] 			}
[js_test:elemmatch_object] 		]
[js_test:elemmatch_object] 	},
[js_test:elemmatch_object] 	{
[js_test:elemmatch_object] 		"a" : [
[js_test:elemmatch_object] 			1,
[js_test:elemmatch_object] 			{
[js_test:elemmatch_object] 
[js_test:elemmatch_object] 			}
[js_test:elemmatch_object] 		]
[js_test:elemmatch_object] 	},
[js_test:elemmatch_object] 	{
[js_test:elemmatch_object] 		"a" : [
[js_test:elemmatch_object] 			{
[js_test:elemmatch_object] 				"b" : 1
[js_test:elemmatch_object] 			}
[js_test:elemmatch_object] 		]
[js_test:elemmatch_object] 	}
[js_test:elemmatch_object] ] :



 Comments   
Comment by Githook User [ 07/Jul/22 ]

Author:

{'name': 'Ben Shteinfeld', 'email': 'ben.shteinfeld@mongodb.com', 'username': 'bshteinfeld'}

Message: SERVER-67503 Return documents with arrays satisfying $elemMatch predicates
Branch: master
https://github.com/mongodb/mongo/commit/9545c3833d3330b198d0f51ae93f31cd8c2460c8

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