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cs.DB2024
Rewriting Consistent Answers on Annotated Data
Phokion G. Kolaitis, Nina Pardal, Jonni Virtema +1
We embark on a study of the consistent answers of queries over databases annotated with values from a naturally ordered positive semiring. In this setting, the consistent answers o…
cs.DB2024
Computing Range Consistent Answers to Aggregation Queries via Rewriting
Aziz Amezian El Khalfioui, Jef Wijsen
We consider the problem of answering conjunctive queries with aggregation on database instances that may violate primary key constraints. In SQL, these queries follow the SELECT-FR…