One of the things I have been consistently excited about was the new pluggable storage API, and I had followed a handful of projects that were working on plugins, like zedstore, zheap, and cstore. But now it seems like all of those efforts have stagnated. Any idea what happened?
The difficulty is that the new table access method is very complex and hard to get right. I'm building something using a regular index access method now and it's hard enough. Once I get all that infrastructure working properly I may take another crack at a table access method.
For some purposes you can get away with a foreign data wrapper. FDWs are a lot simpler.
