[SERVER-12640] Distinct against array element returns 0 results Created: 06/Feb/14  Updated: 11/Jul/16  Resolved: 14/Feb/14

Status: Closed
Project: Core Server
Component/s: None
Affects Version/s: 2.5.5
Fix Version/s: 2.6.0-rc0

Type: Bug Priority: Major - P3
Reporter: Craig Wilson Assignee: Benety Goh
Resolution: Done 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   

When using db.foo.distinct("a.0"), server 2.4 returned results where server 2.5.5 returns an empty set.

db.drop();
db.foo.insert({a:[0,1]});
db.foo.insert({a:[1,2]});
 
db.foo.distinct("a.0");
// should return [0, 1], but returns empty with server 2.5.5
 



 Comments   
Comment by Githook User [ 14/Feb/14 ]

Author:

{u'username': u'benety', u'name': u'Benety Goh', u'email': u'benety@mongodb.com'}

Message: SERVER-12640 support distinct on array element. fixed multi-key support
Branch: master
https://github.com/mongodb/mongo/commit/6ae6813f4aea671bc34aa832fd744d4651601d3b

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