n is an integer in the range 0—3. The default value is 0.
ListFormat determines which values should be compressed within a list. The possible options for ListFormat are:
0 — no compression in a list
1 — $DOUBLE (IEEE) values in a list are compressed
2 — Unicode strings in a list are compressed
3 — Both $DOUBLE and Unicode strings in a list are compressed
If using lists with external clients (Java, C#, etc), ensure that the external client supports the compressed list format.
Changing This Parameter
On the Compatibility page of the Management Portal (System Administration > Configuration > Additional Settings > Compatibility), in the ListFormat row, click Edit. Enter the desired value for this setting.