Row compression is a form of logical data compression in which Vantage stores a repeating column value set only once, while any non-repeating column values that belong to that set are stored as logical segmental extensions of the base repeating set. Row compression is a lossless method.
Like multivalue compression, there is no decompression necessary to access row compressed data values. For an explanation of row compression, see Row Compression of Join Indexes .
You can use row compression for join indexes that are defined on row-level security-protected columns.
You control the row compression of join indexes with the syntax you use when you create an index (see CREATE JOIN INDEX ).