Bug 142939 Invalid interval will cause incorrect group action.
Description: Invalid interval will cause incorrect group action. Steps to reproduce: 1. Insert a list 2. Add a group, key is string type column, set interval to year, range to 3 3. Preview Expected result: Error msg about invald interval and ignore the invalid interval. Actual result: No error msg and only return one group with all datarows.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/QueryExecutor.java
else
			{
				
				odiDataSource = dataSource.getOdiDataSource( );
				 
				
				odiDataSource.setAppContext( queryAppContext );
			}
		}
	}
	/**
	 * Populates odiQuery with this query's definitions
	 * 
	 * @throws DataException
	 */
	protected void populateOdiQuery( ) throws DataException
	{
		assert odiQuery != null;
		assert this.baseQueryDefn != null;
		Context cx = Context.enter( );
		try
		{
			
			populateGrouping( cx );
			
			List sorts = this.baseQueryDefn.getSorts( );
			if ( sorts != null && !sorts.isEmpty( ) )
			{
				IQuery.SortSpec[] sortSpecs = new IQuery.SortSpec[sorts.size( )];
				Iterator it = sorts.iterator( );