[TOOLS-148] Produce error on duplicate keys at the same level - MongoDB

XML

Word

Printable

With this input file and mongoimport:

{ "_id" : 1, "_id" : "a" }

{ "_id" : 2, "_id" : "b" }

{ "_id" : 3, "_id" : "c" }

{ "_id" : 4, "_id" : "d" }

Produces this in the database:

ongoexport -d test -c dups

connected to: 127.0.0.1

{ "_id" : 1, "_id" : "a" }

{ "_id" : 2, "_id" : "b" }

{ "_id" : 3, "_id" : "c" }

{ "_id" : 4, "_id" : "d" }

Parser should probably catch this, or maybe a unique key contraint on the bson object.

duplicates

SERVER-19361 Insert of document with duplicate _id fields should be forbidden

is related to

SERVER-5677 rewrite json parser