Care and Feeding of Catalyst Optimizer

SQL Catalyst Optimizer. being in the wrong end realized that I was trying never fix at the wrong end

AI Group in Bloomberg, large clusters in the cloud

does in Apache Spark, problem with that app, planning is the problem?

about all of the green spaces very simple schema inference thing about Spark SQL is, barrier to entry is, see?

like SQL, SQL, right? running the application

SQL turn into something fashion across a cluster.

of time to come back, is what takes you from to run on the cluster.