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https://issues.apache.org/jira/browse/RANGER-1054?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Velmurugan Periasamy updated RANGER-1054:
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Fix Version/s: 0.6.0
> Enhance column masking feature to support custom value/expression
> -----------------------------------------------------------------
>
> Key: RANGER-1054
> URL: https://issues.apache.org/jira/browse/RANGER-1054
> Project: Ranger
> Issue Type: Bug
> Components: plugins
> Affects Versions: 0.6.0
> Reporter: Madhan Neethiraj
> Assignee: Madhan Neethiraj
> Fix For: 0.6.0
>
> Attachments: RANGER-1054.patch
>
>
> Column-masking feature supports a number of masking types - like
> mask/mask_first_4/mask_last_4/mask_show_first_4/.. Adding support to enable
> custom value or expression can make this feature easily extendable, to
> address various use cases. For example:
> {noformat}
> - to show only first 4 digits of ccn field, the expression would be
> 'substr({col}, 0, 4)'
> - to show only last 4 digits of ccn field, the expression would be
> 'substr({col}, length({col} - 3)'
> {noformat}
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