[ 
https://issues.apache.org/jira/browse/TRAFODION-2401?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Anoop Sharma reassigned TRAFODION-2401:
---------------------------------------

    Assignee: Anoop Sharma

> Creating Foreign Key constraint NOT ENFORCE still create system index
> ---------------------------------------------------------------------
>
>                 Key: TRAFODION-2401
>                 URL: https://issues.apache.org/jira/browse/TRAFODION-2401
>             Project: Apache Trafodion
>          Issue Type: Improvement
>          Components: sql-cmp
>    Affects Versions: 2.2-incubating
>            Reporter: Eric Owhadi
>            Assignee: Anoop Sharma
>
> if you create a table and declare a foreign key not enforced, to help 
> optimizer make good decision in plan selection, but still you elected to "not 
> enforce" the FK checking to improve ingestion performance, trafodion is still 
> creating a system index, and therefore impact ingest performance. The index 
> is never used, as the FK is not enforced, but we are still paying the cost of 
> index maintenance



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Reply via email to