Spark Remember to execute the windowing once with Spark This is one of the things it makes sense when you stop to think about it. When you are performing the same aggregation over a window in more than one
Spark Obtaining latest PK value Windows vs Joins with spark When working with change data capture data, containing sometimes just the updated cells for a given PK, it is not easy to efficiently obtain the latest value for the entry
Spark Finding latest non-null values in columns Imagine we have a table with a sort of primary key where information is added or updated partially: not all the columns for a key are updated each time, but
