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From Todd Nine <t...@spidertracks.com>
Subject Questions regarding the future of CQL
Date Thu, 28 Jul 2011 21:28:06 GMT
Hi guys,
  I'm in the process of scheduling some time to re-work the query logic
in my Hector JPA plugin.  A lot of the documentation around CQL on the
site seems to indicate that this is the future path of the client
interfaces for Cassandra.  I have a couple of questions.

1. Will CQL ultimately replace thrift as a client api?

2. If CQL will become the interface, has any thought been given to order
by and rownum equivalent functionality in CQL?  This seems like a major
requirement for most webapps when dealing with secondary indexing and
paging.  Currently I handle this with dynamic composites, and build a
secondary query index with ordering via columns by adding order fields
between the indexed fields and the RK in my column.  Would something
like this be possible directly in Cassandra, or would Lucene style
iterators be preferred?  Personally, I prefer to take the disk space hit
and construct the ordering at the column level.

3. Do you guys feel I should focus efforts on improving the CQL
functionality then migrating the JPA plugin to it, or do you feel it is
too early to begin using the JDBC CQL drivers for this type of
functionality?

Thanks guys,
Todd



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