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Posted to issues@trafodion.apache.org by "Alice Chen (JIRA)" <ji...@apache.org> on 2015/07/22 20:17:07 UTC

[jira] [Created] (TRAFODION-473) LP Bug: 1347930 - MC splits require cumbersome CQD involvement

Alice Chen created TRAFODION-473:
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             Summary: LP Bug: 1347930 - MC splits require cumbersome CQD involvement
                 Key: TRAFODION-473
                 URL: https://issues.apache.org/jira/browse/TRAFODION-473
             Project: Apache Trafodion
          Issue Type: Bug
          Components: sql-cmp
            Reporter: Qifan Chen
            Assignee: Qifan Chen
            Priority: Critical
             Fix For: 1.0 (pre-incubation)


The following two CQD s are currently needed to make MC stats based split to work.  They are cumbersome to apply at the best. 

cqd cache_histograms 'off';  -- use during dml
cqd USTAT_COLLECT_MC_SKEW_VALUES 'on';  -- use during upstats



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