Derby JDBC 4.0 driver returns 3 for JDBC driver major version
-------------------------------------------------------------
Key: DERBY-1546
URL: http://issues.apache.org/jira/browse/DERBY-1546
Project: Derby
Issue Type: Bug
Components: JDBC
Affects Versions: 10.2.0.0
Reporter: Kathey Marsden
Priority: Minor
For 10.2 the DatabaseMetaData.getJDBCMajorVersion() is returning "3" for
the Derby JDBC 4.0 driver. It should return 4. This is easily
reproduced by running a simple test to obtain a connection and
output the value,
Database product: Apache Derby
Database version: 10.2.0.4 alpha
Driver name: Apache Derby Embedded JDBC Driver
Driver version: 10.2.0.4 alpha
JDBC driver major version: 3
JDBC driver minor version: 0
Test code:
org.apache.derby.jdbc.EmbeddedConnectionPoolDataSource40 ds =
new
org.apache.derby.jdbc.EmbeddedConnectionPoolDataSource40();
ds.setDatabaseName("C:\\drivers\\derby\\databases\\JDBC40DB");
ds.setUser("dbuser1");
ds.setPassword("dbpwd1");
PooledConnection pooledConn =
ds.getPooledConnection();
Connection conn = pooledConn.getConnection();
System.out.println("Database product: " +
conn.getMetaData().getDatabaseProductName());
System.out.println("Database version: " +
conn.getMetaData().getDatabaseProductVersion());
System.out.println("Driver name: " +
conn.getMetaData().getDriverName());
System.out.println("Driver version: " +
conn.getMetaData().getDriverVersion());
System.out.println("JDBC driver major version: " +
conn.getMetaData().getJDBCMajorVersion());
System.out.println("JDBC driver minor version: " +
conn.getMetaData().getJDBCMinorVersion());
Relevant Derby Embedded code in EmbedDatabaseMetaData is:
* JDBC 3.0
*
* Retrieves the major JDBC version number for this driver.
*
* @return JDBC version major number
*/
public int getJDBCMajorVersion()
{
return 3;
}
and client code in org.apache.derby.client.am.DatabaseMetaData:
public int getJDBCMajorVersion() throws SQLException {
checkForClosedConnection();
return 3;
}
I am not sure if this should be JVM dependent or if it should always return 4
regardless of the JVM version.
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