a short & sweet code-focused tutorial declaring a scala function as a spark sql udf that can be leveraged via the api approach or in a formal sql statement
Monthly Archives: December 2020
joining spark dataframes with identical column names (not just in the join condition)
a quick walkthru of spark sql dataframe code showing joining scenarios when both tables have columns with the same name; this includes when they are used in the join condition as well as when they are not