Bug 134988 [regression]Available items in Query didn't change when change data source in Edit Data Set Dialog.
Description: Available items in Query didn't change when change data source in Edit Data Set Dialog. Steps to reproduce: 1. New two different data sources. 2. New a dataset, change data source, view Available Items in Query pane. Expected result: Available Items in Query pane changed according to new Data source. Actual result: Available Items in Query pane kept unchanged.
data/org.eclipse.birt.report.data.oda.jdbc.ui/src/org/eclipse/birt/report/data/oda/jdbc/ui/editors/SQLDataSetEditorPage.java
GridLayout groupLayout = new GridLayout();
			groupLayout.numColumns = 3;
			
			groupLayout.verticalSpacing = 10;
			selectTableGroup.setLayout(groupLayout);
			
			GridData data = new GridData(GridData.FILL_HORIZONTAL);
			selectTableGroup.setLayoutData(data);
		}
		
		schemaLabel = new Label( selectTableGroup, SWT.LEFT );
		schemaLabel.setText( JdbcPlugin.getResourceString("tablepage.label.schema") );
		schemaCombo = new Combo( selectTableGroup, SWT.READ_ONLY );
		GridData gd = new GridData( GridData.FILL_HORIZONTAL );
		gd.horizontalSpan = 2;
		schemaCombo.setLayoutData( gd );
		enableSchemaComponent( isSchemaSupported );
	
		Label FilterLabel = new Label(selectTableGroup, SWT.LEFT);
		FilterLabel.setText(JdbcPlugin.getResourceString("tablepage.label.filter"));
		
		searchTxt = new Text(selectTableGroup, SWT.BORDER) ;
		{
			GridData data = new GridData(GridData.FILL_HORIZONTAL);
			data.horizontalSpan = 2;
			searchTxt.setLayoutData(data);
		}
		
		 Select Type
		Label selectTypeLabel = new Label(selectTableGroup, SWT.NONE);