xy720 opened a new pull request #3981:
URL: https://github.com/apache/incubator-doris/pull/3981


   #3389 
   This commit supports updating partitions' properties of range table in one 
command.
   
   Example:
   
   - replication_num
   
   ```
   alter table tbl_name modify partition (p1, p2, p3) set ("replication_num" = 
"3");
   ```
   
   - storage_medium && storage_cooldown_time
   
   ```
   alter table tbl_name modify partition (p1, p2, p3) set ("storage_medium" = 
"SSD", "storage_cooldown_time" = "2018-01-01 12:00:00");
   ```
   
   - in_memory
   
   ```
   alter table tbl_name modify partition (*) set ("in_memory" = "true");
   ```


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