Todd Lipcon created KUDU-1848:
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Summary: Simplified dictionary-compression for in-memory data
Key: KUDU-1848
URL: https://issues.apache.org/jira/browse/KUDU-1848
Project: Kudu
Issue Type: Bug
Components: tablet
Affects Versions: Backlog
Reporter: Todd Lipcon
Assignee: Todd Lipcon
In use cases that insert a lot of dictionary-codable data, we find that the MRS
fills up rather rapidly, partially due to many repeated copies of the same
values. It would be relatively simple to keep an in-memory dictionary of the
most recent N binary values, and on insertion, check if we have recently
inserted the same value. If so, we don't need to make a second copy of it in
the MRS arena.
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