[jira] [Created] (NIFI-4071) ConvertJSONToSQL does not support Hive

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

Matt Burgess created NIFI-4071:
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             Summary: ConvertJSONToSQL does not support Hive
                 Key: NIFI-4071
                 URL: https://issues.apache.org/jira/browse/NIFI-4071
             Project: Apache NiFi
          Issue Type: Improvement
          Components: Extensions
            Reporter: Matt Burgess


Currently, the ConvertJSONToSQL processor does not support Hive as the target database, either using a HiveConnectionPool or a DBCPConnectionPool configured with a Hive driver. At the very least:

1) A SQLException occurs when determining the auto-increment value. This is due to a Hive bug (HIVE-13528 [https://issues.apache.org/jira/browse/HIVE-13528]) where the column is not named according to the spec ([http://docs.oracle.com/javase/8/docs/api/java/sql/DatabaseMetaData.html#getColumns-java.lang.String-java.lang.String-java.lang.String-java.lang.String-]).

2) Column names are returned with the table name prepended (using a dot separator)

3) There may be other JDBC API calls that are not supported by the Hive JDBC driver.

#1 could be solved by checking for "IS_AUTOINCREMENT" then failing over to "IS_AUTO_INCREMENT".  #2 could be solved with a lastIndexOf("."), as is done in _org.apache.nifi.util.hive.HiveJdbcCommon#createSchema(java.sql.ResultSet, java.lang.String)_. #3 would take some investigation into the other JDBC API calls being made.



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