[jira] [Work started] (TRAFODION-1852) Disallow internal system reserved names as user specified columns

["Anoop Sharma (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TRAFODION-1852?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on TRAFODION-1852 started by Anoop Sharma.
-----------------------------------------------
> Disallow internal system reserved names as user specified columns
> -----------------------------------------------------------------
>
>                 Key: TRAFODION-1852
>                 URL: https://issues.apache.org/jira/browse/TRAFODION-1852
>             Project: Apache Trafodion
>          Issue Type: Bug
>            Reporter: Anoop Sharma
>            Assignee: Anoop Sharma
>            Priority: Minor
>
> Some column names are reserved for internal trafodion system usage.
> These columns are internally added based on certain conditions
> and have pre-defined types.
> These are:
>   SYSKEY to specify system generated key values if no user primary
>   key has been specified or a store by clause is specified.
>   "_SALT_" to specify salting value for a row.
>   "_DIVISION_*_" to specify computed value for DIVISION BY clause
> Currently, these names are allowed to be used as user specified
> column names and user defined types.
> That prevents certain options to be used (like 'salt by') and can be
> confusing.
> This jira is to disallow user specification of these reserved column 
> names and return an error if they are used.



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