Sylvain Lebresne created CASSANDRA-9745:
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Summary: 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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