advancedxy commented on issue #25739: [WIP][SPARK-28945][CORE][SQL] Support 
concurrent dynamic partition writes to different partitions in the same table
URL: https://github.com/apache/spark/pull/25739#issuecomment-530009383
 
 
   > i was not aware that there is an alternative syntax or way of doing this 
without dynamic partition overwrite. sorry for the confusion.
   
   No worries. Consider the sql way of dynamic partition insertion:
   ```
   insert overwrite table t partition(day='20190901', hour='01', action) 
   select xxx, action from src
   ```

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