Bug 200755 [smoke]Fail to preview Crosstab after deploy BIRT in application servers.[0601][1102]
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/ServiceForQueryResults.java
return this.reportQuery;
	}
	
	/*
	 * @see org.eclipse.birt.data.engine.impl.IQueryService#getGroupLevel()
	 */
	public int getGroupLevel( )
	{
		if ( queryService instanceof PreparedSubquery )
		{
			PreparedSubquery subQuery = (PreparedSubquery) queryService;
			return subQuery.getGroupLevel( );
		}
		else if ( queryService instanceof PreparedIVSubQuery )
		{
			PreparedIVSubQuery subQuery = (PreparedIVSubQuery) queryService;
			return subQuery.getGroupLevel( );
		}
		else
		{
			return 0;
		}
	}
	
	/*
	 * @see org.eclipse.birt.data.engine.impl.IQueryService#getDataSetRuntime(int)
	 */
	public DataSetRuntime getDataSetRuntime( )
	{
		return queryExecutor.getDataSet( );