6. A computer-readable medium storing computer-executable instructions that, when executed by one or more processors, configures one or more computer systems to perform at least: instructions that cause the one or more processors to create an event processing network to represent a data store, the event processing network comprising a plurality of distributed nodes, each node configured to process events of an event stream; instructions that cause the one or more processors to create a table component that represents a data store event of the data store; and instructions that cause the one or more processors to implement an engine of the event processing network using the table component as an external relation source to perform: instructions that cause the one or more processors to select, from the data store, particular data that corresponds to a particular event of the event stream; instructions that cause the one or more processors to retrieve the particular data utilizing an application programming interface (API) method call; and instructions that cause the one or more processors to add the particular data to the particular event.
13. The computer-readable medium of claim 6 , wherein the engine comprises a continuous query language engine.