Bug 142404 [smoke][regression] dynamic parameter does not work properly
steps to reproduce: - create a report - create a data source - create a data set using the data set - create a dynamic parameter bound to the data set - preview report expected behavior: - dynamic parameter works properly actual behavior: - it simply didn't, there are no values listed in drop down box
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/GetParameterDefinitionTask.java
new ScriptExpression( paramExpr ) ) );
				}
				
				String labelColumnName = LABEL_PREFIX;;
				String valueColumnName = VALUE_PREFIX;;
				
				if ( labelExpr != null )
				{
					queryDefn.addResultSetExpression( labelColumnName, labelExpr );
				}
				
				queryDefn.addResultSetExpression( valueColumnName, valueExpr );
				
				
				GroupDefinition groupDef = new GroupDefinition( );
				groupDef.setKeyExpression( valueStmt );
				queryDefn.addGroup( groupDef );
				
				queryDefn.setAutoBinding( true );
				IPreparedQuery query = dteDataEngine.prepare( queryDefn );
				IQueryResults result = query.execute( executionContext
						.getSharedScope( ) );
				IResultIterator iter = result.getResultIterator( );
				int count = 0;
				while ( iter.next( ) )
				{
					String label = null;
					if ( labelExpr != null )
					{
						label = iter.getString( labelColumnName );