[GitHub] [hive] baifachuan commented on pull request #3009: HIVE-25912: Drop external table throw NPE if the location set to ROOT…

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baifachuan commented on pull request #3009:
URL: https://github.com/apache/hive/pull/3009#issuecomment-1034406701


   The other PR for Hive 3.1.2: https://github.com/apache/hive/pull/2987
   
   I fixed the bug with check the hive storage path, if it is a ROOT path throw an exception, broken the create table behavior.
   
   ```
   DEBUG : Shutting down query CREATE EXTERNAL TABLE `fcbai1`(
   `inv_item_sk` int,
   `inv_warehouse_sk` int,
   `inv_quantity_on_hand` int)
   PARTITIONED BY (
   `inv_date_sk` int) STORED AS ORC
   LOCATION
   'hdfs://127.0.0.1:8020/'
   Error: Error while processing statement: FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask. InvalidObjectException(message:fcbai1 location must not be root path) (state=08S01,code=1)
   ```
   
   Ensure that creating tables and dropping tables behave the same.
   


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