While Jonathan and crew work on the infrastructure to support triggers: https://issues.apache.org/jira/browse/CASSANDRA-4285
We have a project going over here that provides a trigger-like capability: https://github.com/hmsonline/cassandra-triggers/ https://github.com/hmsonline/cassandra-triggers/wiki/GettingStarted We are working enhancements that would support synchronous triggers w/ javascript. For now, they are processed asynchronously, and you implement a Java interface. -brian On Tue, Jul 10, 2012 at 9:24 AM, Felipe Schmidt <felipef...@gmail.com> wrote: > Does anyone know something about the following questions? > > 1. Does Cassandra support customized filter? customized filter means > programmer can define his desired filter to select the data. > 2. Does Cassandra support trigger? trigger has the same meaning as in > RDBMS. > > Thanks in advance. > > Regards, > Felipe Mathias Schmidt > (Computer Science UFRGS, RS, Brazil) > > > -- Brian ONeill Lead Architect, Health Market Science (http://healthmarketscience.com) mobile:215.588.6024 blog: http://weblogs.java.net/blog/boneill42/ blog: http://brianoneill.blogspot.com/