Bug 120061 data type boolean in dbms can not show in data set
i use postgresql 8.1 and jdbc driver in create data set from table with boolean field it have error data set try to make it a integer and show can not convert 't', 'f' to integer
data/org.eclipse.birt.report.data.oda.jdbc/src/org/eclipse/birt/report/data/oda/jdbc/ResultSet.java
return rs.wasNull( );
		}
		catch ( SQLException e )
		{
			throw new JDBCException( ResourceConstants.RESULTSET_DETERMINE_NULL, e );
		}
	}
	/*
	 * 
	 * @see org.eclipse.datatools.connectivity.oda.IResultSet#findColumn(java.lang.String)
	 */
	public int findColumn( String columnName ) throws OdaException
	{
		logger.logp( java.util.logging.Level.FINE,
				ResultSet.class.getName( ),
				"findColumn",
				"ResultSet.findColumn( \"" + columnName + "\" )" );
		assertNotNull( rs );
		try
		{
			
			return rs.findColumn( columnName );
		}
		catch ( SQLException e )
		{
			throw new JDBCException( ResourceConstants.RESULTSET_CANNOT_FIND_COLUMN,
					e );
		}
	}
}