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cs.DB2025
Efficient Query Repair for Aggregate Constraints
Shatha Algarni, Boris Glavic, Seokki Lee +1
In many real-world scenarios, query results must satisfy domain-specific constraints. For instance, a minimum percentage of interview candidates selected based on their qualificati…
cs.DB2025
In-memory Incremental Maintenance of Provenance Sketches [extended version]
Pengyuan Li, Boris Glavic, Dieter Gawlick +4
Provenance-based data skipping compactly over-approximates the provenance of a query using so-called provenance sketches and utilizes such sketches to speed-up the execution of sub…
cs.DB2025
Cost-based Selection of Provenance Sketches for Data Skipping
Ziyu Liu, Boris Glavic
Provenance sketches, light-weight indexes that record what data is needed (is relevant) for answering a query, can significantly improve performance of important classes of queries…