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From "Kathey Marsden (JIRA)" <j...@apache.org>
Subject [jira] Created: (DERBY-4255) DatabaseMetaData getDatabaseMajorVersion() and getDatabaseMinorVersion() return software version rather than database version
Date Tue, 02 Jun 2009 20:33:07 GMT
DatabaseMetaData getDatabaseMajorVersion() and getDatabaseMinorVersion() return software version
rather than database version
-----------------------------------------------------------------------------------------------------------------------------

                 Key: DERBY-4255
                 URL: https://issues.apache.org/jira/browse/DERBY-4255
             Project: Derby
          Issue Type: Bug
          Components: JDBC
    Affects Versions: 10.5.1.1, 10.4.2.0, 10.3.3.0, 10.2.2.0, 10.1.3.1, 10.6.0.0
            Reporter: Kathey Marsden


The javadoc for 
DatabaseMetaData.getDatabaseMajorVersion() and getDatabaseMinorVersion() says they should
retrieve the version number of the underlying database, so for soft upgraded databases this
should be the database format version not the current software version which it currently
does.  getDatabaseProductVersion should continue to return the current software version.


To reproduce create a database wombat with 10.1 with ij and then run the program below with
10.5.

import java.sql.*;

public class TestDBMetaDatabaseVersion {

    public static void main(String[] args) throws Exception{
	Class.forName("org.apache.derby.jdbc.EmbeddedDriver").newInstance();
	Connection conn = DriverManager.getConnection("jdbc:derby:wombat");
	DatabaseMetaData dmd = conn.getMetaData();
	System.out.println("getDatabaseMajorVersion():" + dmd.getDatabaseMajorVersion());
	System.out.println("getDatabaseMinorVersion():" + dmd.getDatabaseMinorVersion());
	System.out.println("getDatabseProductVersion():"  + dmd.getDatabaseProductVersion());
	
    }

}


The output shows:
getDatabaseMajorVersion():10
getDatabaseMinorVersion():5
getDatabseProductVersion():10.5.1.2 - (777744M)

The first two are incorrect and should show 10.1



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