Queries and Storage Questions

[dmai (Daniel Mai)]

@Emanuel

2. Is it true that Dgraph is geared more towards OLTP than OLAP, more interactive queries than analytics?

Dgraph is designed for OLTP though it can also be used for OLAP since queries can perform arbitrary depth joins across your data set.

@Emanuel

3. I read that you use BadgerDB (key-value store). I assume that is how you store the vertices, however, edges are in RDF format (with properties, however). So do you have a separate RDF storage next to Badger?
4. These are performance questions: Are edges stored with the vertex-data? Are the edge-properties stored with the edge data?

Everything is stored as a posting list in Badger. The posting list structure is covered in the design concepts docs that @MichelDiz linked to earlier.