All operations are done efficiently, which means that no Python UDFs or .map() transformations are used at all; only Spark SQL's Catalyst (and the Tungsten execution engine) is used for the retrieval ...

I am attempting to use the update operation with the Python api. Spark version is 3.0.1. I launch pyspark with pyspark --packages io.delta:delta-core_2.12:0.8.0,org.apache.hadoop:hadoop-aws:2.8.5 My ...