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https://issues.apache.org/jira/browse/TRAFODION-2839?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16289983#comment-16289983
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David Wayne Birdsall commented on TRAFODION-2839:
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A possible solution is to change CQD USTAT_INCREMENTAL_UPDATE_STATISTICS from 
ON to SAMPLE. Doing that avoids computation and storage of CBFs (counting bloom 
filters) for incremental histogram processing. The performance of this 
possibility needs evaluation.

> executor/TEST023 leaves a bunch of stuff in /home/xxx/cbfs directory
> --------------------------------------------------------------------
>
>                 Key: TRAFODION-2839
>                 URL: https://issues.apache.org/jira/browse/TRAFODION-2839
>             Project: Apache Trafodion
>          Issue Type: Bug
>          Components: sql-cmp
>         Environment: All
>            Reporter: David Wayne Birdsall
>            Assignee: David Wayne Birdsall
>
> The UPDATE STATISTICS incremental code leaves CBF files in the /home/xxx/cbfs 
> directory. These stick around even after tables are deleted. There should be 
> a way to clean these up.



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