Cannot mix counter and non counter columns in the same table

[Ali Akhtar]

In the documentation for counters:

https://docs.datastax.com/en/cql/3.1/cql/cql_using/use_counter_t.html

The example table is created via:

CREATE TABLE counterks.page_view_counts
  (counter_value counter,
  url_name varchar,
  page_name varchar,
  PRIMARY KEY (url_name, page_name)
);

Yet if I try to create a table with a mixture of texts, ints, timestamps,
and counters, i get the error ' Cannot mix counter and non counter columns
in the same table'

Is that supposed to be allowed or not allowed, given that the official
example contains a mix of counters and non-counters?