Bug 122854 There is redundant columns in "available columns" list in "export data" dialog.
Description: There is redundant columns in "available columns" list in "export data" dialog. Steps to reproduce: 1. Preview attached design in web viewer. 2. Select the table and click on "export" button. 3. There is a "detail" column name in "available columns" list which is not data set column.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/data/dte/ReportQueryBuilder.java
protected int parseInterval( String interval )
		{
			if ( DesignChoiceConstants.INTERVAL_YEAR.equals( interval ) )
			{
				return IGroupDefinition.YEAR_INTERVAL;
			}
			if ( DesignChoiceConstants.INTERVAL_MONTH.equals( interval ) )
			{
				return IGroupDefinition.MONTH_INTERVAL;
			}
			if ( DesignChoiceConstants.INTERVAL_WEEK.equals( interval ) )  
			{
				return IGroupDefinition.WEEK_INTERVAL;
			}
			if ( DesignChoiceConstants.INTERVAL_QUARTER.equals( interval ) )
			{
				return IGroupDefinition.QUARTER_INTERVAL;
			}
			if ( DesignChoiceConstants.INTERVAL_DAY.equals( interval ) )
			{
				return IGroupDefinition.DAY_INTERVAL;
			}
			if ( DesignChoiceConstants.INTERVAL_HOUR.equals( interval ) )
			{
				return IGroupDefinition.HOUR_INTERVAL;
			}
			if ( DesignChoiceConstants.INTERVAL_MINUTE.equals( interval ) )
			{
				return IGroupDefinition.MINUTE_INTERVAL;
			}