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Posted to issues@trafodion.apache.org by "Hans Zeller (JIRA)" <ji...@apache.org> on 2016/10/27 02:01:08 UTC

[jira] [Updated] (TRAFODION-2315) Heuristic decision on when to use a temp table for WITH clause

     [ https://issues.apache.org/jira/browse/TRAFODION-2315?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hans Zeller updated TRAFODION-2315:
-----------------------------------
    Issue Type: Sub-task  (was: Improvement)
        Parent: TRAFODION-2127

> Heuristic decision on when to use a temp table for WITH clause
> --------------------------------------------------------------
>
>                 Key: TRAFODION-2315
>                 URL: https://issues.apache.org/jira/browse/TRAFODION-2315
>             Project: Apache Trafodion
>          Issue Type: Sub-task
>          Components: sql-cmp
>            Reporter: Hans Zeller
>            Assignee: Hans Zeller
>
> This is a follow-up to TRAFODION-2127.
> The code delivered for TRAFODION-2127 puts in the infrastructure to create a temp table, but it does not provide heuristics to decide automatically when to do this transformation. CQD CSE_USE_TEMP can only be used to force the transformation ON or OFF.



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