DGO - how to find out the outcome of a conditional upsert

[anand (Anand Chandrashekar)]

Assuming you execute a request as below:

res,err := dg.NewTxn().Do(ctx, req)

If you get an empty map, and you see the predicate name in res.Txn.Preds, you can infer that a predicate was applied between existing uids.