title: Insert spark Dataframe in partitioned hive table without overwrite the data
body: <p>I have one dataframe created from a partition table.</p>
  
  <p>I need to insert this data frame in an already created partitioned hive table without overwriting the previous data.</p>
  
  <p>I use <code>partitionBy("columnname"),insertInto("hivetable")</code>
  but it give me issue of partitionBy and intsertInto cant use at same time .</p>