We believe that data analytics should be democratized—and is why we innovate Presto with state-of-the-art database technology. Trusted governance is important to us—and is why we model our project governance and by laws after the Linux Foundation. TO OUR FELLOW DATA ENGINEERS, SOFTWARE DEVELOPERS, AND DATA PLATFORM ENTHUSIASTS: As the use of data analytics and…
In the previous article we looked at the abstract problem statement and possibilities inherent in scanning tables. In this piece we look at the quantitative upside with Presto. We look at a number of queries and explain the findings. The initial impulse motivating this work is the observation that table scan is by far the…
Table scan, on the face of it, sounds trivial and boring. What’s there in just reading a long bunch of records from first to last? Aren’t indexing and other kinds of physical design more interesting? As data has gotten bigger, the columnar table scan has only gotten more prominent. The columnar scan is a fairly…