i have table composite primary key. name,description, id primary key (id, name, description) whenever searching cassandra need provide 3 keys, have use case want delete, update, , based on id. so created materialized view against table, , reordered keys have id first can search based on id. but how delete or update record id ? it's not clear if using partition key 3 columns, or if using composite primary key . if using partition key 3 columns: create table tbl ( id uuid, name text, description text, ... primary key ((id, name, description)) ); notice double parenthesis need 3 components identify data. when query data id materialized view need retrieve both name , description fields, , issue 1 delete per tuple <id, name, description> . instead, if use composite primary key id being partition key : create table tbl ( id uuid, name text, description text, ... primary key (id, name, description) ); no...