On 12/5/14 12:22 PM, Dai, Kevin wrote:
Hi, ALLHow can I group by one column and order by another one, then select the first row for each group (which is just like window function doing) by SparkSQL?Best Regards, Kevin.
On 12/5/14 12:22 PM, Dai, Kevin wrote:
Hi, ALLHow can I group by one column and order by another one, then select the first row for each group (which is just like window function doing) by SparkSQL?Best Regards, Kevin.