擅长:python、mysql、java
<p>spark 1.4具有窗口功能,如下所述:
<a href="https://databricks.com/blog/2015/07/15/introducing-window-functions-in-spark-sql.html" rel="nofollow">https://databricks.com/blog/2015/07/15/introducing-window-functions-in-spark-sql.html</a></p>
<p>希望有帮助,请告诉我。</p>