Types of Table
ETS and DETS tables store tuples. One of the elements in the tuple (by default, the first) is called the key of the table. We insert tuples into the table and extract tuples from the table based on the key. What happens when we insert a tuple into a table depends upon the type of the table and the value of the key. Some tables, called sets, require that all the keys in the table are unique. Others, called bags, allow several tuples to have the same key.
Choosing the correct type of table has important consequences for the performance of your applications.
Each of the basic set and bag table types has two variants, making for a total of four types of table: sets, ordered sets, bags, and duplicate bags. In a set, all the keys ...
Get Programming Erlang, 2nd Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
