lyrTableFieldMappings is used to assist the API in filtering operations
| 
                     Field Name  | 
                
                     Description  | 
                
                     Version Added  | 
            
| TableName | Table being referenced (varchar(100), NOT NULL) | 10.0 | 
| DBFieldName | The field name as seen by the database (varchar(100), NOT NULL) | 10.0 | 
| MappedFieldName | The field name as used by the API (varchar(100), NOT NULL) | 10.0 |