Primary Key Field Type
 FormGuid uniqueidentifier

Field Field Type Null Notes Description
 MappingSchemaGuid uniqueidentifier  
 MappingSchema xml  

Foreign Key Field Type Null Notes Description
 FormGuid uniqueidentifier   CustomFormElement.Guid

Index Name Field(s) Unique Primary Clustered
 PK_CustomFormMappingSchema FormGuid, MappingSchemaGuid  

Entity-Relationship diagram of this table