Syntax options: ENABLE COMPRESSION | DISABLE COMPRESSION Specifies whether the rows for the partition are compressed or uncompressed when stored. You can enable or disable compression on each vertical partition. You enable compression to conserve disk space, but there is a small CPU overhead for inserting and retrieving compressed rows. If you omit this clause, the default compression is that which was specified for the storage map before the first STORE COLUMNS clause. The default is ENABLE COMPRESSION.