Loading...
Loading...
Documents with empty arrays can be matched using the $size operator on the array field using the number -(2 ^ 63) as an argument. This problem affects 2.5.x of MongoDB but not 2.4.x.
xgen-internal-githook commented on Mon, 30 Dec 2013 17:34:28 +0000: Author: {u'username': u'dstorch', u'name': u'David Storch', u'email': u'david.storch@10gen.com'} Message: SERVER-11952 fix $size match expression parsing for negative longs Signed-off-by: Matt Kangas Branch: master https://github.com/mongodb/mongo/commit/44a01e7e4f4e86933ea792c1d110542d66560b6c
2.4.9-pre- > db.a.insert({arr:[]}) > db.a.find({arr:{$size:NumberLong("-9223372036854775808")}}) > 2.5.5-pre- > db.a.insert({arr:[]}) Insert WriteResult({ "ok" : 1, "n" : 1 }) > db.a.find({arr:{$size:NumberLong("-9223372036854775808")}}) { "_id" : ObjectId("529f77fca01bf21d39c74b48"), "arr" : [ ] } >
MongoDB Integration
Learn more about where this data comes from
Bug Scrub Advisor
Streamline upgrades with automated vendor bug scrubs
BugZero Enterprise
Wish you caught this bug sooner? Get proactive today.