Getting max value of a long field without losing precision

Elastic Stack Elasticsearch
3

2^52 does give you something like 4*10^15 IDs.

So you'd expect 15 digits of precision, right?

But unfortunately, we see in one of those posts I linked that Elasticsearch is formatting its JSON like this:

      "value" : 5.61380157E8

So you're losing a fair chunk of the potential precision because of a poor choice of transport data format (JSON).