Shaofeng SHI created KYLIN-1137:
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Summary: TopN measure need support dictionary merge
Key: KYLIN-1137
URL: https://issues.apache.org/jira/browse/KYLIN-1137
Project: Kylin
Issue Type: Bug
Components: Job Engine, Metadata
Affects Versions: v2.0
Reporter: Shaofeng SHI
Assignee: Shaofeng SHI
TopN measure depends on dictionary to persistent the high-cardinality column.
When merge two segments, the dictionary also need be merged, and then the
counters need use the merged dictionary.
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