sql

Hive - Sliding Last Not Null Value

Hive supports windowing features over columns according to current row. You can see the documantation about windowing functions in Hive at [LanguageManual WindowingAndAnalytics](https://cwiki.apache.org/confluence/display/Hive/LanguageManual+WindowingAndAnalytics" target="_blank). Those functions are not going be the topic in this article. Assume that, you