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Story Points:
1
Documentation Changes:
Needed
Documentation Changes Summary:

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Unlike mongo where numbers are always stored as doubles unless differently specified, mongosh will have the javascript behavior: 1 is an int32, 1.1 is a double.

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Unlike mongo where numbers are always stored as doubles unless differently specified, mongosh will have the javascript behavior: 1 is an int32, 1.1 is a double.

mongosh should insert number as Double by default.

Currently number in mongosh are inserted as int32 if they can be represented as integer and as double otherwise.

ie.

db.coll1.insertOne({
  x: 1
});

will result in a bson document like this:

{
    _id: 602aa63a5eabf03429d733f1,
    x: Int32 { _bsontype: 'Int32', value: 1 }
}

where the old shell would have inserted a Double:

{
    _id: 602aa5da098e6ce990139172,
    x: Double { _bsontype: 'Double', value: 1 }
}

is duplicated by

MONGOSH-1032 NumberInt object wrapper is not displayed

is related to

MONGOSH-967 Cannot resize oplog via mongosh

NODE-4948 Spike: Investigate defaulting javascript numbers to doubles in BSON serialize and EJSON stringify

NODE-4946 Cast Javascript Number as bsonType: "double"

related to

NODE-3164 Mongo JS Driver Inserting Ints Instead of Doubles