The three schema options available under Structure provide a detailed description of record type schema and usage, as follows:
- Simple fields. This listing shows simple field types (text, numeric, terms,dates, geospatial and files) for each record type, along with internal codes and occurrence in the database.
- Relationships. This listing shows record pointers and relationship markers for each record type, along with internal codes and occurrence in the database.
- Combined. This listing shows simple field types (text, numeric, terms, dates, geospatial and files), pointer fields and relationship marker fields for each record type, along with internal codes and occurrence in the database.
For example:

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