Create cumulative cardinality aggregation

src/legacy/core_plugins/data/public/search/aggs/agg_types.ts

@@ -31,6 +31,7 @@ import { geoBoundsMetricAgg } from './metrics/geo_bounds';
 import { geoCentroidMetricAgg } from './metrics/geo_centroid';
 import { percentileRanksMetricAgg } from './metrics/percentile_ranks';
 import { derivativeMetricAgg } from './metrics/derivative';
+import { cumulativeCardinalityMetricAgg } from './metrics/cumulative_cardinality';
 import { cumulativeSumMetricAgg } from './metrics/cumulative_sum';
 import { movingAvgMetricAgg } from './metrics/moving_avg';
 import { serialDiffMetricAgg } from './metrics/serial_diff';
@@ -64,6 +65,7 @@ export const aggTypes = {
  percentileRanksMetricAgg,
  topHitMetricAgg,
  derivativeMetricAgg,
+ cumulativeCardinalityMetricAgg,
  cumulativeSumMetricAgg,
  movingAvgMetricAgg,
  serialDiffMetricAgg,

src/legacy/core_plugins/data/public/search/aggs/metrics/cumulative_cardinality.ts

@@ -0,0 +1,77 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import { i18n } from '@kbn/i18n';
+import { npStart } from 'ui/new_platform';
+import { MetricAggType, IMetricAggConfig, MetricAggParam } from './metric_agg_type';
+import { IAggConfigs } from '../agg_configs';
+import { METRIC_TYPES } from './metric_agg_types';
+import { KBN_FIELD_TYPES } from '../../../../../../../plugins/data/public';
+
+const cumulativeCardinalityTitle = i18n.translate(
+ 'data.search.aggs.metrics.cumulativeCardinalityTitle',
+ {
+ defaultMessage: 'Cumulative Unique Count',
+ }
+);
+
+export const cumulativeCardinalityMetricAgg = new MetricAggType({
+ name: METRIC_TYPES.CUMULATIVE_CARDINALITY,
+ title: cumulativeCardinalityTitle,
+ makeLabel: agg => {
+ return i18n.translate('data.search.aggs.metrics.uniqueCountLabel', {
+ defaultMessage: 'Cumulative Unique count of {field}',
+ values: { field: agg.getParam('field')?.name },
+ });
+ },
+ params: [
+ {
+ name: 'field',
+ type: 'field',
+ write: (
+ agg: IMetricAggConfig,
+ output: Record<string, any>,
+ aggConfigs?: IAggConfigs
+ ): void => {
+ if (!aggConfigs) {
+ return;
+ }
+ const metric = aggConfigs.createAggConfig({
+ id: agg.id + '-parent',
+ enabled: true,
+ type: METRIC_TYPES.CARDINALITY,
+ schema: 'metric',
+ params: {
+ field: agg.getParam('field'),
+ missing: 0,
+ },
+ });
+ output.parentAggs = (output.parentAggs || []).concat(metric);
+ output.params = {
+ buckets_path: metric.id,
+ };
+ },
+ },
+ ] as Array<MetricAggParam<IMetricAggConfig>>,
+ getFormat() {
+ const fieldFormatsService = npStart.plugins.data.fieldFormats;
+
+ return fieldFormatsService.getDefaultInstance(KBN_FIELD_TYPES.NUMBER);
+ },
+});

src/legacy/core_plugins/data/public/search/aggs/metrics/metric_agg_types.ts

@@ -25,6 +25,7 @@ export enum METRIC_TYPES {
  MIN_BUCKET = 'min_bucket',
  SUM_BUCKET = 'sum_bucket',
  COUNT = 'count',
+ CUMULATIVE_CARDINALITY = 'cumulative_cardinality',
  CUMULATIVE_SUM = 'cumulative_sum',
  DERIVATIVE = 'derivative',
  GEO_BOUNDS = 'geo_bounds',