feat: 堆叠图下钻

backend/src/main/java/io/dataease/service/chart/ChartViewService.java

@@ -696,6 +696,9 @@ public class ChartViewService {
                         String stackColumn = row[xAxis.size()];
                         if (StringUtils.equals(ss.getName(), stackColumn)) {
                             StringBuilder a = new StringBuilder();
+                            if (isDrill) {
+                                a.append(row[xAxis.size() - 1]);
+                            } else {
                                 for (int j = 0; j < xAxis.size(); j++) {
                                     if (j == xAxis.size() - 1) {
                                         a.append(row[j]);
@@ -703,6 +706,7 @@ public class ChartViewService {
                                         a.append(row[j]).append("\n");
                                     }
                                 }
+                            }
                             if (StringUtils.equals(a.toString(), x.get(i))) {
                                 if (row.length > xAxis.size() + extStack.size()) {
                                     List<ChartDimensionDTO> dimensionList = new ArrayList<>();