I collected data from an administrative division and used the following command to query provincial-level datadb.collection.find({'_id':{$mod: [10000000000,0]}})
No data was returned
Normally the following data needs to be returned
{
"_id" : NumberLong("110000000000"),
"name" : "北京市"
},
/* 2 */
{
"_id" : NumberLong("120000000000"),
"name" : "天津市"
},
/* 3 */
{
"_id" : NumberLong("130000000000"),
"name" : "河北省"
},
...
I can use a 10-digit divisor to return data after removing a 0, but it is not what I need.
Is this a $mod bug?
There are no relevant instructions in the official documentation.
ringa_lee2017-05-02 09:26:54
I tested it, and now it is:
1. Under mongo shell, the situation is the same as you described;
2. Under mongodb driver 2.2.24, the situation is the same as you described;
error: null
result: undefined
3.mongoose driver 4.7.9,
error : Can't use $mod with ObjectId.
It is recommended to visit: https://jira.mongodb.org/secu... ; and submit an issue for tracking.
For reference.
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