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https://issues.apache.org/jira/browse/CARBONDATA-2902?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jacky Li resolved CARBONDATA-2902.
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Resolution: Fixed
Fix Version/s: 1.5.0
> Fix showing negative pruning result for explain command
> -------------------------------------------------------
>
> Key: CARBONDATA-2902
> URL: https://issues.apache.org/jira/browse/CARBONDATA-2902
> Project: CarbonData
> Issue Type: Bug
> Reporter: jiangmanhua
> Assignee: jiangmanhua
> Priority: Major
> Fix For: 1.5.0
>
> Time Spent: 2h 20m
> Remaining Estimate: 0h
>
> when CACHE_LEVEL is BLOCK or carbon data file is LegacyStore, pruned
> result of default datamap are assigned with blocklet_id = -1, which means all
> blocklets in block need to be scanned. But explain command takes pruned
> result size as blocklets hit.
> If only 2 of 3 blocklet in one block is hit, negative pruning result `1
> (block) - 2(blocklet）= -1 ` occur
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