These items are from a great talk on “A Streaming Database” by Rafael J. Fernández-Moctezuma at PDXPUG day.

Hancock is a C-based domain-specific language designed to make it easy to read, write, and maintain programs that manipulate large amounts of relatively uniform data. In addition to C constructs, Hancock provides domain-specific forms to facilitate large-scale data processing

The CQL continuous query language (google)

Borealis is a distributed stream processing engine. Borealis builds on previous efforts in the area of stream processing: Aurora and Medusa.

CEDR is the Complex Event Detection and Response project from Microsoft Research.

Google Protocol Buffers “allow you to define simple data structures in a special definition language, then compile them to produce classes to represent those structures in the language of your choice”.
Which seems like Thrift which is “a software framework for scalable cross-language services development. It combines a powerful software stack with a code generation engine to build services that work efficiently and seamlessly between langauges”.