Cassandra is not column oriented. It coined the phrase “wide column” (which has caused untold confusion), but this just meant row-oriented without a schema and

Cassandra is not column oriented. It coined the phrase “wide column” (which has caused untold confusion), but this just meant row-oriented without a schema and unlimited numbers of dynamic “columns” in each row. This is no longer true anyway, it is simply row-oriented now in the normal sense.