[jira] [Created] (SPARK-25593) JDBC write Impala, `truncate` true option in Overwrite mode for JDBC DataFrameWriter is dropping the table instead of truncating.

["rakesh (JIRA)" <ji...@apache.org>]

rakesh created SPARK-25593:
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             Summary: JDBC write Impala, `truncate` true option in Overwrite mode for JDBC DataFrameWriter is dropping the table instead of truncating.
                 Key: SPARK-25593
                 URL: https://issues.apache.org/jira/browse/SPARK-25593
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 2.3.2
            Reporter: rakesh


Scenario :

Reading data from Impala using jdbc (cloudera jdbc41 driver) and writing to Impala with command write.mode(SaveMode.Overwrite).option("truncate", true)

*Observed*: 
It's dropping and trying to create a new table. failing with exception

CAUSED BY: Exception: Syntax error
), Query: CREATE TABLE jdbc_spark.persons_write_200 ("personid" INTEGER , "lastname" TEXT , "firstname" TEXT , "address"
 TEXT , "city" TEXT ).

Expected : 
It should only truncate the table.

Note : With SaveMode.Append it's working absolutely fine.




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