Author

Tim Kraska

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Preprint Aug 2026

JetStream: Generating Query Accelerators for Existing Database Systems

Recent work has shown that LLMs can synthesize highly specialized database systems for fixed workloads, but existing approaches typically assume static data and replace the database's native storage with generated representations. We present JetStream, a system for generating query-specific accelerators that instead ex...

Akhilesh Balasingam, Amadou Latyr Ngom, Geoffrey X. Yu et al. · 0 citations

Preprint Aug 2026

EXPLAIN Yourself! Finding Query Planner Stalls Across DBMSes

It is found that although the queries triggering slow planning are largely DBMS-specific, recurring pathologies involving correlated subqueries, CTE expansion, repeated subquery expressions, disjunctive joins, and constant folding affect multiple systems.

Geoffrey X. Yu, Ryan Marcus, Tim Kraska · 0 citations