Feedback driven lightweight distributed query optimization
Project
Feedback driven lightweight distributed query optimization
Principal Investigator
Oracle Fellowship Recipient
Orestis Polychroniou
Summary
We focus on three aspects of query processing: (a) efficiently aggregating data skewed by (a few) frequently occurring heavy-hitters, (b) designing distributed join algorithms to greatly reduce network traffic---often the key performance bottleneck, and (c) fast partitioning techniques to distribute large sets of data. Our work so far has been published in DaMon'13, VLDB'14 and SIGMOD'15.