GEN Database: Persistence

Our GEN tool imports an external RDB to a memory-resident object-relational database (ORDB):

• Its external persistent RDB format is a union of records representing tuples of different types.

• During import, fkeys are augmented or replaced by parent and first-child and next-sibling object reference pointers, which follow strict GEN naming conventions.

• During export, pointers are removed but fkeys are preserved or restored for persistent storage in external RDB tuples.

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