Bug 155799 [regression]Error occour when previewing attached report in web viewer
Error occour when previewing attached report in web viewer Step to reproduce: preview attached report in web viewer Expected: work properly Actual : Error occour in web viewer while in PDF and HTML displayed properly.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/PreparedDummyQuery.java
* @param value
		 * @throws DataException
		 */
		void doSaveExpr( Map valueMap ) throws DataException
		{
			if ( needsSaveToDoc( ) == false )
				return;
			if ( isBasicSaved == false )
			{
				isBasicSaved = true;
				
				int groupLevel;
				int[] subQueryInfo;
				if ( subQueryName == null )
				{
					groupLevel = -1;
					subQueryInfo = null;
				}
				else
				{
					groupLevel = 1;
					subQueryInfo = new int[]{
							0, 1
					};
				}
				this.getRdSave( ).saveResultIterator( new DummyCachedResult( ),
						groupLevel,
						subQueryInfo );
			}
			this.getRdSave( ).saveExprValue( 0, valueMap );