[DOCS] Add descriptions for aggs A-F (#2225)

specification/_doc_ids/table.csv

@@ -463,4 +463,25 @@ query-dsl-terms-query,https://www.elastic.co/guide/en/elasticsearch/reference/{b
 query-dsl-terms-set-query,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/query-dsl-terms-set-query.html
 query-dsl-text-expansion-query,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/query-dsl-text-expansion-query.html
 query-dsl-wildcard-query,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/query-dsl-wildcard-query.html
-query-dsl-wrapper-query,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/query-dsl-wrapper-query.html
+query-dsl-wrapper-query,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/query-dsl-wrapper-query.html
+search-aggregations-bucket-adjacency-matrix-aggregation,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/search-aggregations-bucket-adjacency-matrix-aggregation.html
+search-aggregations-bucket-autodatehistogram-aggregation,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/search-aggregations-bucket-autodatehistogram-aggregation.html
+search-aggregations-metrics-avg-aggregation,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/search-aggregations-metrics-avg-aggregation.html
+search-aggregations-pipeline-avg-bucket-aggregation,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/search-aggregations-pipeline-avg-bucket-aggregation.html
+gap-policy,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/search-aggregations-pipeline.html#gap-policy
+search-aggregations-metrics-boxplot-aggregation,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/search-aggregations-metrics-boxplot-aggregation.html
+search-aggregations-pipeline-bucket-script-aggregation,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/search-aggregations-pipeline-bucket-script-aggregation.html
+search-aggregations-pipeline-bucket-selector-aggregation,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/search-aggregations-pipeline-bucket-selector-aggregation.html
+search-aggregations-pipeline-bucket-sort-aggregation,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/search-aggregations-pipeline-bucket-sort-aggregation.html
+search-aggregations-metrics-cardinality-aggregation,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/search-aggregations-metrics-cardinality-aggregation.html
+search-aggregations-bucket-children-aggregation,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/search-aggregations-bucket-children-aggregation.html
+search-aggregations-pipeline-cumulative-cardinality-aggregation,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/search-aggregations-pipeline-cumulative-cardinality-aggregation.html
+search-aggregations-pipeline-cumulative-sum-aggregation,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/search-aggregations-pipeline-cumulative-sum-aggregation.html
+search-aggregations-bucket-datehistogram-aggregation,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/search-aggregations-bucket-datehistogram-aggregation.html
+search-aggregations-bucket-daterange-aggregation,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/search-aggregations-bucket-daterange-aggregation.html
+search-aggregations-pipeline-derivative-aggregation,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/search-aggregations-pipeline-derivative-aggregation.html
+search-aggregations-bucket-diversified-sampler-aggregation,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/search-aggregations-bucket-diversified-sampler-aggregation.html
+search-aggregations-metrics-extendedstats-aggregation,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/search-aggregations-metrics-extendedstats-aggregation.html
+search-aggregations-pipeline-extended-stats-bucket-aggregation,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/search-aggregations-pipeline-extended-stats-bucket-aggregation.html
+search-aggregations-bucket-frequent-item-sets-aggregation,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/search-aggregations-bucket-frequent-item-sets-aggregation.html
+search-aggregations-bucket-filter-aggregation,https://www.elastic.co/guide/en/elasticsearch/reference/{branch}/search-aggregations-bucket-filter-aggregation.html

specification/_types/aggregations/AggregationContainer.ts

@@ -120,45 +120,140 @@ export class AggregationContainer {
    */
   meta?: Metadata
 
+  /**
+   * A bucket aggregation returning a form of adjacency matrix.
+   * The request provides a collection of named filter expressions, similar to the filters aggregation request.
+   * Each bucket in the response represents a non-empty cell in the matrix of intersecting filters.
+   * @doc_id search-aggregations-bucket-adjacency-matrix-aggregation
+   */
   adjacency_matrix?: AdjacencyMatrixAggregation
+  /**
+   * A multi-bucket aggregation similar to the date histogram, except instead of providing an interval to use as the width of each bucket, a target number of buckets is provided.
+   * @doc_id search-aggregations-bucket-autodatehistogram-aggregation
+   */
   auto_date_histogram?: AutoDateHistogramAggregation
+  /**
+   * A single-value metrics aggregation that computes the average of numeric values that are extracted from the aggregated documents.
+   * @doc_id search-aggregations-metrics-avg-aggregation
+   */
   avg?: AverageAggregation
+  /**
+   * A sibling pipeline aggregation which calculates the mean value of a specified metric in a sibling aggregation.
+   * The specified metric must be numeric and the sibling aggregation must be a multi-bucket aggregation.
+   * @doc_id search-aggregations-pipeline-avg-bucket-aggregation
+   */
   avg_bucket?: AverageBucketAggregation
+  /**
+   * A metrics aggregation that computes a box plot of numeric values extracted from the aggregated documents.
+   * @doc_id search-aggregations-metrics-boxplot-aggregation
+   */
   boxplot?: BoxplotAggregation
+  /**
+   * A parent pipeline aggregation which runs a script which can perform per bucket computations on specified metrics in the parent multi-bucket aggregation.
+   * @doc_id search-aggregations-pipeline-bucket-script-aggregation
+   */
   bucket_script?: BucketScriptAggregation
+  /**
+   * A parent pipeline aggregation which runs a script to determine whether the current bucket will be retained in the parent multi-bucket aggregation.
+   * @doc_id search-aggregations-pipeline-bucket-selector-aggregation
+   */
   bucket_selector?: BucketSelectorAggregation
+  /**
+   * A parent pipeline aggregation which sorts the buckets of its parent multi-bucket aggregation.
+   * @doc_id search-aggregations-pipeline-bucket-sort-aggregation
+   */
   bucket_sort?: BucketSortAggregation
   /**
+   * A sibling pipeline aggregation which runs a two sample Kolmogorov–Smirnov test ("K-S test") against a provided distribution, and the distribution implied by the documents counts in the configured sibling aggregation.
    * @doc_id search-aggregations-bucket-count-ks-test-aggregation
    * @availability stack stability=experimental
    * @availability serverless stability=experimental
    */
   bucket_count_ks_test?: BucketKsAggregation
   /**
+   * A sibling pipeline aggregation which runs a correlation function on the configured sibling multi-bucket aggregation.
    * @doc_id search-aggregations-bucket-correlation-aggregation
    * @availability stack stability=experimental
    * @availability serverless stability=experimental
    */
   bucket_correlation?: BucketCorrelationAggregation
+  /**
+   * A single-value metrics aggregation that calculates an approximate count of distinct values.
+   * @doc_id search-aggregations-metrics-cardinality-aggregation
+   */
   cardinality?: CardinalityAggregation
   /**
+   * A multi-bucket aggregation that groups semi-structured text into buckets.
    * @doc_id search-aggregations-bucket-categorize-text-aggregation
    * @availability stack stability=experimental
    * @availability serverless stability=experimental
    */
   categorize_text?: CategorizeTextAggregation
+  /**
+   * A single bucket aggregation that selects child documents that have the specified type, as defined in a `join` field.
+   * @doc_id search-aggregations-bucket-children-aggregation
+   */
   children?: ChildrenAggregation
+  /**
+   * A multi-bucket aggregation that creates composite buckets from different sources.
+   * Unlike the other multi-bucket aggregations, you can use the `composite` aggregation to paginate *all* buckets from a multi-level aggregation efficiently.
+   */
   composite?: CompositeAggregation
+  /**
+   * A parent pipeline aggregation which calculates the cumulative cardinality in a parent `histogram` (or `date_histogram`) aggregation.
+   * @doc_id search-aggregations-pipeline-cumulative-cardinality-aggregation
+   */
   cumulative_cardinality?: CumulativeCardinalityAggregation
+  /**
+   * A parent pipeline aggregation which calculates the cumulative sum of a specified metric in a parent `histogram` (or `date_histogram`) aggregation.
+   * @doc_id search-aggregations-pipeline-cumulative-sum-aggregation
+   */
   cumulative_sum?: CumulativeSumAggregation
+  /**
+   * A multi-bucket values source based aggregation that can be applied on date values or date range values extracted from the documents.
+   * It dynamically builds fixed size (interval) buckets over the values.
+   * @doc_id search-aggregations-bucket-datehistogram-aggregation
+   */
   date_histogram?: DateHistogramAggregation
+  /**
+   * A multi-bucket value source based aggregation that enables the user to define a set of date ranges - each representing a bucket.
+   * @doc_id search-aggregations-bucket-daterange-aggregation
+   */
   date_range?: DateRangeAggregation
+  /**
+   * A parent pipeline aggregation which calculates the derivative of a specified metric in a parent `histogram` or `date_histogram` aggregation.
+   * @doc_id search-aggregations-pipeline-derivative-aggregation
+   */
   derivative?: DerivativeAggregation
+  /**
+   * A filtering aggregation used to limit any sub aggregations' processing to a sample of the top-scoring documents.
+   * Similar to the `sampler` aggregation, but adds the ability to limit the number of matches that share a common value.
+   * @doc_id search-aggregations-bucket-diversified-sampler-aggregation
+   */
   diversified_sampler?: DiversifiedSamplerAggregation
+  /**
+   * A multi-value metrics aggregation that computes stats over numeric values extracted from the aggregated documents.
+   * @doc_id search-aggregations-metrics-extendedstats-aggregation
+   */
   extended_stats?: ExtendedStatsAggregation
+  /**
+   * A sibling pipeline aggregation which calculates a variety of stats across all bucket of a specified metric in a sibling aggregation.
+   * @doc_id search-aggregations-pipeline-extended-stats-bucket-aggregation
+   */
   extended_stats_bucket?: ExtendedStatsBucketAggregation
+  /**
+   * A bucket aggregation which finds frequent item sets, a form of association rules mining that identifies items that often occur together.
+   * @doc_id search-aggregations-bucket-frequent-item-sets-aggregation
+   */
   frequent_item_sets?: FrequentItemSetsAggregation
+  /**
+   * A single bucket aggregation that narrows the set of documents to those that match a query.
+   * @doc_id search-aggregations-bucket-filter-aggregation
+   */
   filter?: QueryContainer
+  /**
+   * A multi-bucket aggregation where each bucket contains the documents that match a query.
+   */
   filters?: FiltersAggregation
   geo_bounds?: GeoBoundsAggregation
   geo_centroid?: GeoCentroidAggregation