How to do Negative Lookups in Dgraph?

Users Dgraph
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Hi Team,

I want to highlight comments or posts which were liked by the logged in user.

While going through the Highscalability blog, Reddit lessons learned…, I found that they use Bloom Filter.

Bloom Filter Reddit
Bloom Filter Reddit1094×200 23.5 KB

I searched for Bloom filter in Dgraph, but couldn’t find a succinct answer to:

  1. How to use Bloom filter in Dgraph?
  2. If it’s part of Badger DB, how to access that feature via Dgraph?
  3. Does Dgraph implement an even better approach?

If there’s a documentation I didn’t reach, please point me in that direction.