Can ArcGIS Pro Support 64 bit ObjectIds?

[JamesKerr]

According to https://developers.arcgis.com/rest/services-reference/layer-feature-service-.htm

If the layer objectIdField does not have a length property or the length property is set to 4, the objectIdField is 32-bit. If the objectIdField has a length of 8, the objectIdField is 64-bit.

Testing this with ArcGIS Pro seems to show that it doesn't work though. Can ArcGIS Pro use feature services that have 64 bit ObjectIds?

[KoryKramer]

James, I don't think 64-bit objectIDs are supported in ArcGIS.  The question might be best for the Geodatabase‌ space.

What is an ObjectID?—Help | ArcGIS Desktop is ArcMap help but says " ObjectIDs are limited to 32-bit values, which store a maximum value of 2,147,483,647."

In the Pro geodatabase help we also see similar notes 

from DBMS data types supported in ArcGIS—Help | ArcGIS Desktop 

[JamesKerr]

Thanks Kory. I've run across these various bits in the documentation as well and that's why it confused me as to why the feature service API even has this option. I guess this means that ArcGIS cannot use feature services that use an ObjectId field that has a length other than 4.

I am attempting to expose feature services to ArcGIS from large non-relational databases that need to have an Id space larger than what 32 bit numbers can provide. Do you have any suggestions for how I can get around that limitation?  

[KoryKramer]

I just ran across this thread while looking for something else and figured I'd post here for the community - ArcGIS Pro started supporting 64-bit object IDs (and Big Integer data type) in version 3.2. https://pro.arcgis.com/en/pro-app/3.2/get-started/whats-new-in-arcgis-pro.htm#