How to realize the same social account fusion of multiple batches of data through dgraph

In my demand, I get multiple batches of social records through multiple channels, how should I realize the aggregation of the same social accounts in multiple batches. What I know is upsert, but it is too slow in the case of large amounts of data.

@yeahvip Are you planning to use the live loader? If so, check out the -xidmap flag. This would work for initial and subsequent loads, but not if you’ve already got social account IDs in your graph.

One approach I’ve used in the past with success is to pull existing IDs from the graph in the batch loader code. When examining a record to add, check to see if the external ID already has a Dgraph ID. If so, associate the existing ID in the exported RDF or JSON, otherwise assign it a blank uid: _:<external id>