# IndexCompression

The compression to apply to the data index. Use one of the following values:

`0` | Do not compress `dynterm` files (lists of conceptual terms)
`1` | (Deprecated; do not use)
`2` | Index a reduced amount of information for Index fields. When you set `IndexCompression` to `2`, ordinary conceptual searches and Wildcard searches are supported, but proximity searches and field-restricted queries are not.

Type: | Long
Default: | `0`
Required: | No
Configuration Section: | Server
Example: | `IndexCompression=2`
See Also: |

NOTE: This configuration parameter is a permanent setting. If you want to change this setting, you must initialize your index.

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