Snapshot Semantics for Temporal Multiset Relations

PVLDB, pp. 639-652, 2019.

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Abstract:

Snapshot semantics is widely used for evaluating queries over temporal data: temporal relations are seen as sequences of snapshot relations, and queries are evaluated at each snapshot. In this work, we demonstrate that current approaches for snapshot semantics over interval-timestamped multiset relations are subject to two bugs regarding ...More

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