Defining a column 

You assign columns a type during table creation. Column types, other than collection-type columns, are specified as a parenthesized, comma-separated list of column name and type pairs.

This example shows how to create a table that includes collection-type columns: map, set, and list.

CREATE TABLE users (
  userid text PRIMARY KEY,
  first_name text,
  last_name text,
  emails set<text>,
  top_scores list<int>,
  todo map<timestamp, text>
);