Xid -> uid hashing function

DGraph uses 64bit numbers internally while we have a number of larger 128bit uuid based identifiers in the data we want to put into DGraph. The documentation mentions hashing that takes place.

What hashing mechanism is being used here ?

I would like to know how unlikely a meshing of data might be. We might use mitigating mechanisms to detect collisions at least but they might not be 100%.

Hey @matthiasg,

We use go-farm.Fingerprint64. See here:
https://github.com/dgraph-io/dgraph/blob/master/rdf/parse.go#L42

The package is here:
https://github.com/dgryski/go-farm, which is an implementation of:

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