Hybrid Columnar Compression is one of the new features that Oracle has been touting to persuade DBAs on the virtues of their Exadata and ZFSSA storage solutions.
As stated in my bio, I currently get paid by EMC, but this blog post is not another critique of Oracle sales massaging technical numbers on the assumption that you can use HCC for OLTP loads.
Rather, this is a USE AT YOUR OWN RISK method to explore what HCC can and cannot do. Using this method will render your databases unsupported by Oracle and you must NOT do this on any production or mission critical system. Please note I accept no responsibility for anyone destroying critical data from trying any of this.
the gruffdba 