Hi all, I did a bit of digging around in JIRA today, and I have a few questions. I'm about to update my Datanucleus Cassandra plugin.
http://github.com/tnine/Datanucleus-Cassandra-Plugin I've built my own secondary indexing scheme, which is essentially a simplified port of the Lucandra format of storage. Paging does not work well, and unions/intersections are quite memory intensive and slow due to I/O with the client. I'd prefer to have Cassandra do a majority of the searching, then simply return the result set to my plugin. For this, I need the following functionality Boolean Ops: && || Equality Ops: < <= > >= Max Size Paging: Ex from 20 to 40 of the result set. To keep consistent paging, the user would have to supply the time of the initial query to provide consistent result set to perform the page and return a subset of the results. >From the 0.7 beta 2 api, I need to implement the || operand and the paging. I'd rather help out and contribute this to the Cassandra project then utilize it within Datanucleus than build a client side plugin. I've done a bit of digging on JIRA, but could not find any existing issues that relate to adding to adding operands, or paging. Are there any existing issues I can begin taking a look at? I have all next week at work dedicated to migrating to 0.7, so I'd like to utilize this time to try and contribute this functionality to Cassandra. The most significant client facing change would be the Thrift API. I would need to add the ability to for clients to pass trees of boolean operations. Any guidance/help about how I should approach this issue would be greatly appreciated. Thanks, Todd
