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ORPHEUSDB: Bolt-on Versioning for Relational Databases

ORPHEUSDB: Bolt-on Versioning for Relational Databases

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ORPHEUSDB, a dataset version control system that “bolts on” versioning capabilities to a traditional relational database system, thereby gaining the analytics capabilities of the database “for free”. We develop and evaluate multiple data models for representing versioned data, as well as a light-weight partitioning scheme, LYRESPLIT, to further optimize the models for reduced query latencies. With LYRESPLIT, ORPHEUSDB is on average 103× faster in finding effective (and better) partitionings than competing approaches, while also reducing the latency of version retrieval by up to 20× relative to schemes without partitioning. LYRESPLIT can be applied in an online fashion as new versions are added, alongside an intelligent migration scheme that reduces migration time by 10× on average
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