OPERATIONAL DEFECT DATABASE
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Original Summary Regex matching failed when ":" is presented Original Description Here is my mongodb shell session > db.foo.save({path: 'a:b'}) WriteResult({ "nInserted" : 1 }) > db.foo.findOne() { "_id" : ObjectId("58fedc47622e89329d123ee8"), "path" : "a:b" } > db.foo.save({path: 'a:b:c'}) WriteResult({ "nInserted" : 1 }) > db.foo.find({path: /a:[^:]+/}) { "_id" : ObjectId("58fedc47622e89329d123ee8"), "path" : "a:b" } { "_id" : ObjectId("58fedc57622e89329d123ee9"), "path" : "a:b:c" } > db.foo.find({path: /a:[a-z]+/}) { "_id" : ObjectId("58fedc47622e89329d123ee8"), "path" : "a:b" } { "_id" : ObjectId("58fedc57622e89329d123ee9"), "path" : "a:b:c" } Clearly the regex /a:[^:]/ and /a:[a-z]/ shall not match string 'a:b:c', but looks like mongo failed on this regex
thomas.schubert commented on Tue, 25 Apr 2017 15:41:11 +0000: Hi greenlaw110, That's right, I've updated the ticket summary to clarify this behavior. Kind regards, Thomas greenlaw110 commented on Tue, 25 Apr 2017 06:04:34 +0000: Alright so according to http://stackoverflow.com/questions/43602310/mongdodb-regex-matching-failed-when-presented/43602744#43602744 it is due to partial matching, not a bug
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