[UnifiedHistogram] Improve breakdown chart when values for the field …

…are missing (elastic#181013) ## Summary This PR changes Lens configuration to visualize data even if values for the "Breakdown by" field are not provided. Before: <img width="600" alt="Screenshot 2024-04-17 at 11 34 41" src="https://github.com/elastic/kibana/assets/1415710/02957896-4d5b-4a99-b09b-076ee962c219"> After: <img width="600" alt="Screenshot 2024-04-17 at 11 35 13" src="https://github.com/elastic/kibana/assets/1415710/a5a89785-71b8-4d77-9423-df573cc21d17">
fkanout · Apr 23, 2024 · 4c09bc9 · 4c09bc9
1 parent 1b53a8d
commit 4c09bc9
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diff --git a/src/plugins/unified_histogram/public/services/lens_vis_service.attributes.test.ts b/src/plugins/unified_histogram/public/services/lens_vis_service.attributes.test.ts
@@ -240,7 +240,7 @@ describe('LensVisService attributes', () => {
                         "label": "Top 3 values of extension",
                         "operationType": "terms",
                         "params": Object {
-                          "missingBucket": false,
+                          "missingBucket": true,
                           "orderBy": Object {
                             "columnId": "count_column",
                             "type": "column",

diff --git a/src/plugins/unified_histogram/public/services/lens_vis_service.ts b/src/plugins/unified_histogram/public/services/lens_vis_service.ts
@@ -378,7 +378,7 @@ export class LensVisService {
             },
             orderDirection: 'desc',
             otherBucket: true,
-            missingBucket: false,
+            missingBucket: true,
             parentFormat: {
               id: 'terms',
             },