[jira] [Created] (ATLAS-941) Enhance column masking feature to support custom value/expression

["Madhan Neethiraj (JIRA)" <ji...@apache.org>]

Madhan Neethiraj created ATLAS-941:
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             Summary: Enhance column masking feature to support custom value/expression
                 Key: ATLAS-941
                 URL: https://issues.apache.org/jira/browse/ATLAS-941
             Project: Atlas
          Issue Type: Bug
    Affects Versions: 0.6-incubating
            Reporter: Madhan Neethiraj
            Assignee: Madhan Neethiraj


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:
- 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)'



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