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cs.DB2025
Debunking the Myth of Join Ordering: Toward Robust SQL Analytics
Junyi Zhao, Kai Su, Yifei Yang +3
Join order optimization is critical in achieving good query performance. Despite decades of research and practice, modern query optimizers could still generate inferior join plans…
cs.DB2025
Intra-Query Runtime Elasticity for Cloud-Native Data Analysis
Xukang Zhang, Huanchen Zhang, Xiaofeng Meng
We propose the concept of Intra-Query Runtime Elasticity (IQRE) for cloud-native data analysis. IQRE enables a cloud-native OLAP engine to dynamically adjust a query's Degree of Pa…