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https://issues.apache.org/jira/browse/CASSANDRA-3647?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13414994#comment-13414994
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Pavel Yaskevich commented on CASSANDRA-3647:
--------------------------------------------
bq. I think the current approach for collection representation at the Antlr
level is reasonable. It may be that Pavel's idea is better but I don't think
we're going to make more progress on that w/o actually coding it up. So if you
want to give that a try in a separate ticket Pavel, that's fine, but I don't
think we should block this.
I believe we should block this and even more - I think we should make
fine-grained sub-issues to cover changes, like:
- "Prepare marshal package for collection type support", which would add
collection types and make AbstractType happy with them;
- "CQL3 grammar support for 'collection' operations on list/set/map", which
would add a ANTLR code to support required operations on the grammar level
without using shaky combinations like term/value/literal;
- and this one would a glue for the two described above.
because as in the current state marshal is broken in a way that it requires
instanceof checks, this one pushes it to the whole new level by introducing
functionality that "type" should not have by it's nature e.g. "execute". I'm
not fond of signing this up until we do something about it or we are building a
house without proper fundament.
> Support set and map value types in CQL
> --------------------------------------
>
> Key: CASSANDRA-3647
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3647
> Project: Cassandra
> Issue Type: New Feature
> Components: API, Core
> Reporter: Jonathan Ellis
> Assignee: Sylvain Lebresne
> Labels: cql
> Fix For: 1.2
>
>
> Composite columns introduce the ability to have arbitrarily nested data in a
> Cassandra row. We should expose this through CQL.
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