# `MappingKeywordProperty` [interface-MappingKeywordProperty]

| Name | Type | Description |
| - | - | - |
| `boost` | [double](./double.md) |   |
| `eager_global_ordinals` | boolean |   |
| `index_options` | [MappingIndexOptions](./MappingIndexOptions.md) |   |
| `index` | boolean |   |
| `normalizer` | string |   |
| `norms` | boolean |   |
| `null_value` | string |   |
| `on_script_error` | [MappingOnScriptError](./MappingOnScriptError.md) |   |
| `script` | [Script](./Script.md) | [ScriptSource](./ScriptSource.md) |   |
| `similarity` | string | null |   |
| `split_queries_on_whitespace` | boolean |   |
| `time_series_dimension` | boolean | For internal use by Elastic only. Marks the field as a time series dimension. Defaults to false. |
| `type` | 'keyword' |   |