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https://issues.apache.org/jira/browse/CASSANDRA-17941?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17638301#comment-17638301
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Andres de la Peña commented on CASSANDRA-17941:
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I have rebased the PR on top of the changes introduced by CASSANDRA-17811, so
the proposed functions can be applied to collections, tuples and UDTs:
||PR||CI||
|[trunk|https://github.com/apache/cassandra/pull/1892]|[j8|https://app.circleci.com/pipelines/github/adelapena/cassandra/2516/workflows/1d3e9c97-fbfc-48a7-834e-c53a21129f7e]
[j11|https://app.circleci.com/pipelines/github/adelapena/cassandra/2516/workflows/506d5055-c146-4716-8ac0-2ac9e97006aa]|
The {{mask_default}} function applied to collections simply returns an empty
collection. For tuples and UDTs, it returns a tuple or UDT comprised by the
default masked values of each component.
The {{mask_replace}} function is modified to support replacements of any type,
included values of a type different to the replaced value.
> CQL data masking functions
> --------------------------
>
> Key: CASSANDRA-17941
> URL: https://issues.apache.org/jira/browse/CASSANDRA-17941
> Project: Cassandra
> Issue Type: New Feature
> Components: Feature/Dynamic Data Masking
> Reporter: Andres de la Peña
> Assignee: Andres de la Peña
> Priority: Normal
> Fix For: 4.x
>
>
> Add native CQL functions to mask the contents of a column, as described in
> [CEP-20|https://cwiki.apache.org/confluence/display/CASSANDRA/CEP-20%3A+Dynamic+Data+Masking].
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