RocksDB, triples & key-value pairs

Hi guys,

In the document below it is stated that RocksDB (which is a key-value db) is used as the storage layer.

Stardog Documentation

Data Storage and Optimization

This page discusses how data is stored and updated in Stardog and when it should be optimized.

The document does not reveal exactly how this is done. Is there any document disclosing in more detail how triples are stored / (key-value pairs)?