Bug 124761 When add two filters, one is 'State is equal to CA' and the other is 'EmployeeId is Top 10',the data can be extracted.
Description: When add two filters, one is 'State is equal to CA' and the other is 'EmployeeId is Top 10',the data can not be extracted. Steps to reproduce: 1. import the attached report 2. preview Actual result: the data can not be extracted. Expect result: The intersection set of the data 'State is equal to CA' and the data 'EmployeeId is Top 10' should be displayed.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/odi/IQuery.java
* Returns the number of contiguous group intervals that 
    	 * form one single group, when Interval 
    	 * is used to define group break level.
    	 * @return  The grouping intervalRange.
    	 */
    	public double getIntervalRange( )
    	{
    	    return intervalRange;
    	}      
    	
        /**
         * Gets the start value of a group range
         */
        public Object getIntervalStart()
        {
            return intervalStart;
        }
        
        /**
         * Sets the start value of a group range
         */
        public void setIntervalStart( Object intervalStart )
        {
            this.intervalStart = intervalStart;
        }
        
        public void setIsComplexExpression( boolean isComplexExpr )
		{
			this.isComplexExpression = isComplexExpr;
		}