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From "Robert Stupp (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-9745) Allow validating values through a UDF
Date Sun, 12 Jul 2015 11:36:05 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-9745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14623762#comment-14623762
] 

Robert Stupp commented on CASSANDRA-9745:
-----------------------------------------

[~jbellis] do you think of triggers for ”CQL only"? Like a UDF getting the columns that
an INSERT/UPDATE/DELETE uses?

> Allow validating values through a UDF
> -------------------------------------
>
>                 Key: CASSANDRA-9745
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9745
>             Project: Cassandra
>          Issue Type: New Feature
>            Reporter: Sylvain Lebresne
>            Priority: Minor
>             Fix For: 3.x
>
>
> The only server side validation we do for values is currently that they match their type.
Now that we have UDFs, we could allow to optionally specify a (boolean) value validation function
on a per-column basis. This would give us a pretty generic way of validating value, which
sounds useful to me.
> Once we have that, we could even add some syntactic sugar for some common type of validations,
like {{v int[0..100]}} for numbers between 0 and 100, or {{v text[20]}} for a string that
is not longer than 20, ... That's more of a follow up however.



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