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Jonathan Ellis commented on CASSANDRA-9200: ------------------------------------------- Why do we need CONSISTENCY LEVEL distinct from the SERIAL one? Put another way, what non-Paxos replicated writes are we doing? > Sequences > --------- > > Key: CASSANDRA-9200 > URL: https://issues.apache.org/jira/browse/CASSANDRA-9200 > Project: Cassandra > Issue Type: New Feature > Reporter: Jonathan Ellis > Assignee: Robert Stupp > Fix For: 3.x > > > UUIDs are usually the right choice for surrogate keys, but sometimes > application constraints dictate an increasing numeric value. > We could do this by using LWT to reserve "blocks" of the sequence for each > member of the cluster, which would eliminate paxos contention at the cost of > not being strictly increasing. > PostgreSQL syntax: > http://www.postgresql.org/docs/9.4/static/sql-createsequence.html -- This message was sent by Atlassian JIRA (v6.3.4#6332)