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Backwards Compatibility:
Fully Compatible
Operating System:
ALL
Backport Requested:

v5.1
Steps To Reproduce:
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use test; var coll = db.getCollection("a"); coll.drop() var timeField = "time"; var metaField = "meta"; db.createCollection("a", {timeseries: {timeField: timeField, metaField: metaField}}); coll.insert({[timeField]: ISODate(), [metaField]: 1, x: Number(1.0)}); coll.insert({[timeField]: ISODate(), [metaField]: 1, x: NumberLong(10)}); db.getCollection("system.buckets.a").find({}).pretty();
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use test; var coll = db.getCollection( "a" ); coll.drop() var timeField = "time" ; var metaField = "meta" ; db.createCollection( "a" , {timeseries: {timeField: timeField, metaField: metaField}}); coll.insert({[timeField]: ISODate(), [metaField]: 1, x: Number (1.0)}); coll.insert({[timeField]: ISODate(), [metaField]: 1, x: NumberLong(10)}); db.getCollection( "system.buckets.a" ).find({}).pretty();
Sprint:
Execution Team 2021-11-01, Execution Team 2021-11-15

Insert the following measurements:

{x: Number(1.0)}
{x: NumberLong(10)}

In 5.0:

"control" : {
        "min" : {
                "x" : 1
        },
        "max" : {
                "x" : NumberLong(10)
        }
}

In 5.1/5.2:

"control" : {
        "min" : {
                "x" : 1
        },
        "max" : {
                "x" : 1
        }
}

The bucket has both measurements in both binaries:

"data" : {
        "_id" ...
        "x" : {
                "0" : 1,
                "1" : NumberLong(10)
        },
        "time" ...
}

We'd want the same min/max summaries from 5.0 in 5.1/5.2, to let us know we have measurements ranging from 1 -> 10 in the bucket.

is caused by

SERVER-56717 Use faster value comparison for Timeseries MinMax store