Benedict created CASSANDRA-9706:
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Summary: Precompute ColumnIdentifier comparison
Key: CASSANDRA-9706
URL: https://issues.apache.org/jira/browse/CASSANDRA-9706
Project: Cassandra
Issue Type: Improvement
Components: Core
Reporter: Benedict
Assignee: Benedict
Priority: Minor
Fix For: 3.0 beta 1
Follow up to CASSANDRA-9701. I had hoped to precompute a total order on the
ColumnIdentifier, but decided this would be too risky, with the necessary
periodic rebalancing. So instead, I've hoisted the first 8 bytes of any name
into a long which we can compare to short-circuit all of the expensive work of
ByteBufferUtil.compareUnsigned, making this another very trivial patch (of
debatable necessity to be distinct, but I've already snuck one extra change in
to the previous ticket).
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