[jira] [Created] (HUDI-852) Add validation to check Table name when Append Mode is used in DataSource writer

["Bhavani Sudha (Jira)" <ji...@apache.org>]

Bhavani Sudha created HUDI-852:
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             Summary: Add validation to check Table name when Append Mode is used in DataSource writer
                 Key: HUDI-852
                 URL: https://issues.apache.org/jira/browse/HUDI-852
             Project: Apache Hudi (incubating)
          Issue Type: Bug
          Components: newbie, Writer Core
            Reporter: Bhavani Sudha
            Assignee: Bhavani Sudha
             Fix For: 0.6.0


Copied from user's description in mailing list:

Table name is not respected while inserting record with different table name with Append mode

 
{code:java}
// While running commands from Hudi quick start guide, I found that the
library does not check for the table name in the request against the table
name in the metadata available in the base path, I think it should throw
TableAlreadyExist, In case of Save mode: *overwrite *it warns.

*spark-2.4.4-bin-hadoop2.7/bin/spark-shell   --packages
org.apache.hudi:hudi-spark-bundle_2.11:0.5.1-incubating,org.apache.spark:spark-avro_2.11:2.4.4
 --conf 'spark.serializer=org.apache.spark.serializer.KryoSerializer'*

scala> df.write.format("hudi").
     |     options(getQuickstartWriteConfigs).
     |     option(PRECOMBINE_FIELD_OPT_KEY, "ts").
     |     option(RECORDKEY_FIELD_OPT_KEY, "uuid").
     |     option(PARTITIONPATH_FIELD_OPT_KEY, "partitionpath").
*     |     option(TABLE_NAME, "test_table").*
     |     mode(*Append*).
     |     save(basePath)
20/04/29 17:23:42 WARN DefaultSource: Snapshot view not supported yet via
data source, for MERGE_ON_READ tables. Please query the Hive table
registered using Spark SQL.

scala>

No exception is thrown if we run this

scala> df.write.format("hudi").
     |     options(getQuickstartWriteConfigs).
     |     option(PRECOMBINE_FIELD_OPT_KEY, "ts").
     |     option(RECORDKEY_FIELD_OPT_KEY, "uuid").
     |     option(PARTITIONPATH_FIELD_OPT_KEY, "partitionpath").
*     |     option(TABLE_NAME, "foo_table").*
     |     mode(*Append*).
     |     save(basePath)
20/04/29 17:24:37 WARN DefaultSource: Snapshot view not supported yet via
data source, for MERGE_ON_READ tables. Please query the Hive table
registered using Spark SQL.

scala>


scala> df.write.format("hudi").
     |   options(getQuickstartWriteConfigs).
     |   option(PRECOMBINE_FIELD_OPT_KEY, "ts").
     |   option(RECORDKEY_FIELD_OPT_KEY, "uuid").
     |   option(PARTITIONPATH_FIELD_OPT_KEY, "partitionpath").
     |   option(TABLE_NAME, *tableName*).
     |   mode(*Overwrite*).
     |   save(basePath)
*20/04/29 22:25:16 WARN HoodieSparkSqlWriter$: hoodie table at
file:/tmp/hudi_trips_cow already exists. Deleting existing data &
overwriting with new data.*
20/04/29 22:25:18 WARN DefaultSource: Snapshot view not supported yet via
data source, for MERGE_ON_READ tables. Please query the Hive table
registered using Spark SQL.

scala>


{code}
 



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