Hi -
Your article mentions COLUMNSTORE_ARCHIVE, and that "This is now made possible in SQL Server 2014". However, the Microsoft documentation indicates that it's not available until version 2016.
https://msdn.microsoft.com/en-us/library/gg492153.aspx
DATA_COMPRESSION = COLUMNSTORE | COLUMNSTORE_ARCHIVE
Applies to: SQL Server 2016 through SQL Server 2016.
Specifies the data compression option for the specified table, partition number, or range of partitions. The options are as follows:
COLUMNSTORE
COLUMNSTORE is the default and specifies to compress with the most performant columnstore compression. This is the typical choice.
COLUMNSTORE_ARCHIVE
COLUMNSTORE_ARCHIVE will further compress the table or partition to a smaller size. Use this option for situations such as archival that require a smaller storage size and can afford more time for storage and retrieval.