It looks like a lot of work went into it so far. Is it close to being released?
It is actually ready and working in the master branch. I haven’t released an “numbered version” yet, but I plan on doing it next week.
We are also hard at work on a distributed version of the engine for the enterprise distributed version of redisearch, and that will be released for Redis Conf.
You can read about it here: http://redisearch.io/Aggregations/ (I’ve added a couple more functions in another branch, they’ll be available soon).
And there is a branch in the python client that already supports it but is not merged yet, if you want an inspiration for the client API.
That’s good news. I’ll take a look at the links.