Attached (hope it works!) is a copy of David Luckham's original paper on CEP.
You will note the opening quote in the original paper:
Also, there is a guy who has put together a survey of papers that quote the original paper. You can see easily that CEP is not a database related...
I know David Luckham very well. The notion in the marketing article you mention does not represent David's technical views. David's views are represented here:
http://complexevents.com/?p=103
Where is says, in his direct quote:
If you had done your homework you would not be picking...
Because software vendors are in the business of selling software not trading.
Your logic, if applied to food, would be like this:
"If their food is so good, why do they sell it and not eat it!"
:D :p :)
It's obvious you are biased and you think CEP is only "in-memory database processing" as you posted earlier.
You actually have very little knowledge of what you are talking about and if you read the links with an open mind, and intellect engaged, you would quickly see that CEP is not simply...
The above is completely false and misleading. Event stream processing (ESP) is "in-memory databases". CEP is more more complex.
See, for example:
http://tibcoblogs.com/cep