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https://issues.apache.org/jira/browse/CASSANDRA-3281?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13240022#comment-13240022
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Ben McCann commented on CASSANDRA-3281:
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I'm a little foggy on whether I was able to do things like index based on the
value of a field contained within a protobuf. What I'm definitely missing now
is basically the ability to set the validation_class for a column to ThriftType
and then run a CQL query that can scan the table, deserialize the column, and
select thrift structs where a certain field has a certain value. Super nice
for debugging, running nightly reports, etc.
> Add an AbstractType anytype which stores meta data on a per column basis
> ------------------------------------------------------------------------
>
> Key: CASSANDRA-3281
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3281
> Project: Cassandra
> Issue Type: New Feature
> Reporter: Edward Capriolo
> Priority: Minor
>
> A pet project of mine is an AbstractType for Cassandra that stores metadata
> of the type in the column. https://github.com/edwardcapriolo/Cassandra-AnyType
> I described my use case any my design decisions here.
> https://github.com/edwardcapriolo/Cassandra-AnyType/blob/master/README . The
> biggest cases were needing to support null and '' as keys, column names, and
> column values, however I also think the technique used to serialize Java
> Objects as JSON but compare as a Java object is novel.
> Side node: (The AbstractType interface has changed multiple times between
> 0.6.X, 0.7.X, and 1.0.0-beta. I hope it stabilizes! )
> If people would like AnyType (or parts of it ) incorporated into Cassandra
> that would be great. I am willing to tweak change it based on other peoples
> ideas.
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