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https://issues.apache.org/jira/browse/HIVE-4472?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eric Hanson updated HIVE-4472:
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Description:
The issue is in file FilterExprOrExpr.java and FilterNotExpr.java.
I posted a review for you at
https://reviews.apache.org/r/10752/
I think there is a bug related to sharing of an array of integers. Also, one
algorithm step takes O(DEFAULT_BATCH_SIZE) time always. If
n<<DEFAULT_BATCH_SIZE then this is a performance issue.
was:
The issue is in file FilterExprOrExpr.java
I posted a review for you at
https://reviews.apache.org/r/10752/
I think there is a bug related to sharing of an array of integers. Also, one
algorithm step takes O(DEFAULT_BATCH_SIZE) time always. If
n<<DEFAULT_BATCH_SIZE then this is a performance issue.
> OR, NOT Filter logic can lose an array, and always takes time
> O(VectorizedRowBatch.DEFAULT_SIZE)
> ------------------------------------------------------------------------------------------------
>
> Key: HIVE-4472
> URL: https://issues.apache.org/jira/browse/HIVE-4472
> Project: Hive
> Issue Type: Sub-task
> Reporter: Eric Hanson
> Assignee: Jitendra Nath Pandey
>
> The issue is in file FilterExprOrExpr.java and FilterNotExpr.java.
> I posted a review for you at
> https://reviews.apache.org/r/10752/
> I think there is a bug related to sharing of an array of integers. Also, one
> algorithm step takes O(DEFAULT_BATCH_SIZE) time always. If
> n<<DEFAULT_BATCH_SIZE then this is a performance issue.
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