2 papers
cs.DB2025
Using Read Promotion and Mixed Isolation Levels for Performant Yet Serializable Execution of Transaction Programs
Brecht Vandevoort, Alan Fekete, Bas Ketsman +2
We propose a theory that can determine the lowest isolation level that can be allocated to each transaction program in an application in a mixed-isolation-level setting, to guarant…
cs.DB2025
Instance-Optimal Acyclic Join Processing Without Regret: Engineering the Yannakakis Algorithm in Column Stores
Liese Bekkers, Frank Neven, Stijn Vansummeren +1
Acyclic join queries can be evaluated instance-optimally using Yannakakis' algorithm, which avoids needlessly large intermediate results through semi-join passes. Recent work propo…