Bug 190769 [Regression]The attached report pop up exception when preview
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/data/dte/QueryResultSet.java
rowIdOfGroups[i] = rowId;
			}
		}
		catch ( BirtException e )
		{
			e.printStackTrace( );
		}
	}
	public boolean skipTo( long rowIndex ) throws BirtException
	{
		if ( rs == null )
		{
			return false;
		}
		long oldRowId = rowId;
		rs.moveTo( (int) rowIndex );
		rowId = rowIndex;
		updateRowIdOfGroupsAfterSkip( oldRowId );
		return true;
	}
	private void updateRowIdOfGroupsAfterSkip( long oldRowId )
	{
		long incremetal = rowId - oldRowId;
		if ( incremetal == 1 )
		{
			updateRowIdOfGroups( );
		}
		else if ( incremetal > 1 )
		{
			resetRowIdOfGroups( );