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Bespoke-Card: Why Tune When You Can Generate? Synthesizing Workload-Specific Cardinality Estimators
Johannes Wehrstein, Anton Winter, Timo Eckmann +1
Bespoke-Card is an agent-driven system that automatically generates workload‑specific cardinality estimators as executable code, improving PostgreSQL query optimizer accuracy and r…
Bespoke OLAP: Synthesizing Workload-Specific One-size-fits-one Database Engines
Johannes Wehrstein, Timo Eckmann, Matthias Jasny +1
Modern OLAP engines are designed to support arbitrary analytical workloads, but this generality incurs structural overhead, including runtime schema interpretation, indirection lay…
JOB-Complex: A Challenging Benchmark for Traditional & Learned Query Optimization
Johannes Wehrstein, Timo Eckmann, Roman Heinrich +1
Query optimization is a fundamental task in database systems that is crucial to providing high performance. To evaluate learned and traditional optimizer's performance, several ben…