| Contains the detailed history of schema changes |
| The changes are tracked by module |
| name | type | length | unit | ucd | description |
| id | int | 4 | ID_IDENTIFIER | The unique key for entry | |
| filename | varchar | 128 | ID_IDENTIFIER | The name of the sql file | |
| date | varchar | 64 | DATE | Date of change | |
| name | varchar | 64 | ID_IDENTIFIER | Name of person making the change | |
| description | varchar | 7200 | METADATA_DESCRIPTION | Detailed description of changes |