How do secondary indexes work in Cassandra?
问题 Suppose I have a column family: CREATE TABLE update_audit ( scopeid bigint, formid bigint, time timestamp, record_link_id bigint, ipaddress text, user_zuid bigint, value text, PRIMARY KEY ((scopeid, formid), time) ) WITH CLUSTERING ORDER BY (time DESC) With two secondary indexes, where record_link_id is a high-cardinality column: CREATE INDEX update_audit_id_idx ON update_audit (record_link_id); CREATE INDEX update_audit_user_zuid_idx ON update_audit (user_zuid); According to my knowledge