I'm learning about Cassandra/NoSQL and I'm referring concretely to this page:
https://www.baeldung.com/cassandra-keys
4.1 Partition keys chapter
defines app_name as the PK (partition key), and directly below they show some table data having 2x 'app1' as the app_name...
Which shouldn't be possible, right?
Chapters 4.2 and 4.3 show again problematic data / key constellations, having composite PKs and again violating the uniqueness...
Are the examples crap? Or am I not understanding something correctly?
Coming from relational DBs and then reading this stuff confuses...