Bug 145478 Unable "Select Value" in the Join data set's filter
Step to reproduce: 1.new a join data set(please use the attached file) 2.right click the dataset and click the Edit 3.go to the Filter pane and set a filer 4.click the list of Value1 Actual result: A warning pop up and cant select Value.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/data/ui/util/DataSetProvider.java
if ( paramDefn.getDefaultInputValue( ) != null )
					{
						InputParameterBinding binding = new InputParameterBinding( paramDefn.getName( ),
								new ScriptExpression( paramDefn.getDefaultInputValue( )
										.toString( ) ) );
						defn.addInputParamBinding( binding );
					}
				}
			}
			return defn;
		}
		return null;
	}
	/**
	 * @param dataSetDesign
	 * @param bindingParams
	 * @return
	 */
	public final QueryDefinition getQueryDefinition(
			IBaseDataSetDesign dataSetDesign, ParamBindingHandle[] bindingParams )
	{
		return getQueryDefinition( dataSetDesign, bindingParams, -1 );
	}
	
	/**
	 * @param dataSetDesign
	 * @param bindingParams
	 * @param i
	 * @return
	 */