Entity groups
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Key: CASSANDRA-1684
URL: https://issues.apache.org/jira/browse/CASSANDRA-1684
Project: Cassandra
Issue Type: New Feature
Components: Core
Reporter: Jonathan Ellis
Fix For: 0.8
Supporting entity groups similar to App Engine's (that is, allow rows to be
part of a parent "entity group," whose key is used for routing instead of the
row itself) allows several improvements:
- batches within an EG can be atomic across multiple rows
- order-by-value queries within an EG only have to touch a single replica even
with RandomPartitioner
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