Details
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Improvement
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Status: Closed
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Major
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Resolution: Fixed
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Description
Currently there're 3 parts to write cuboids statistics:
- SaveStatisticsStep
- MergeStatisticsStep
- MergeStatisticsWithOldStep
With feature KYLIN-3453, the sourceRecordCount is introduced. However, only SaveStatisticsStep set this value. The other two should also be updated with this value.
Attachments
Issue Links
- causes
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KYLIN-4992 Source row count statistics calculated in a wrong way in MergeDictionaryMapper
- Closed
- relates to
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KYLIN-3453 Improve cube size estimation for TOPN, COUNT DISTINCT
- Closed
- links to