Finally getting to this...
For the UDF, javascript?
-brian
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Brian O'Neill
Chief Technology Officer
Health Market Science, a LexisNexis Company
215.588.6024 Mobile • @boneill42 http://www.twitter.com/boneill42
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Interesting, I just saw the function definition stuff in AggregationTest.
I’ll dig in there. It seems like we could re-use those functions for
conditional updates?
-brian
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Brian O'Neill
Chief Technology Officer
Health Market Science, a LexisNexis Company
215.588.6024 Mobile • @boneill42
All,
I¹m just looking for a little direction
Anyone know where I can find the code that checks the condition in a
conditional update?
We¹d love to have more expressive conditions, beyond just equality. (e.g.
column contains? value)
I wanted to see how hard this would be to contribute.
Is
It's quite possible support could be added to evaluate a UDF as part of the
condition check. The code you're looking for are implementors of
CASRequest.appliesTo(), in CQL3CasRequest and
CassandraServer.ThriftCASRequest
It seems like https://issues.apache.org/jira/browse/CASSANDRA-8488 would
Perfect. Thanks.
Let me see what I can cook up as a PoC.
The specific use case we are looking to address is for real-time
aggregations, done in memory, then periodically flushed to C*. (e.g.
every 30 seconds)
(similar to what Druid does, but native on top of C*)
In this scenario, we aggregate
