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From "Tyler Hobbs (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-4084) Better validator support for composite comparator CFs
Date Mon, 26 Mar 2012 19:58:31 GMT
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


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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