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Sylvain Lebresne commented on CASSANDRA-4084:
---------------------------------------------
Sorry, there is some confusion. What I've described in my preceding comment
works *today*. It was introduced as part of CASSANDRA-2474. And yes, this ends
up setting ColumnDef under the hood but the point is that this is way more
human readable. What I am saying is that as far as I can tell, everything
you've described so far in that ticket is already handled. At least the
'multiple fields for each "super column" in a row' case is definitively already
handled by CQL3.
> Better validator support for composite comparator CFs
> -----------------------------------------------------
>
> Key: CASSANDRA-4084
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4084
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Tyler Hobbs
> Priority: Minor
>
> Perhaps this should be part of replacing super columns with composites, but
> we essentially need something analogous to sub-column validators for when
> composites are used in a way that's similar to super columns (multiple fields
> for each "super column" in a row). As an example use case, suppose you have
> a wide row holding users where the comparator is (<user_id>, <field>), and
> <field> might be either "name" or "age"; ideally, you can validate "name" as
> UT8Type and "age" as IntegerType.
> Allowing wildcards to be used for components in the column name portion of
> the ColumnDef might be a reasonable approach.
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