[Backport 2.x] [Vega] Add Filter custom label for opensearchDashboard…

…sAddFilter (#3690)

* [Vega] Add Filter custom label for opensearchDashboardsAddFilter (#3640)

* [Vega] Add Filter custom label for opensearchDashboardsAddFilter

Signed-off-by: Aswath <it.aswath@gmail.com>

Co-authored-by: Josh Romero <rmerqg@amazon.com>

---------

Signed-off-by: Aswath <it.aswath@gmail.com>
Co-authored-by: Josh Romero <rmerqg@amazon.com>
(cherry picked from commit 276fae9)
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

* add changelog

Signed-off-by: Josh Romero <rmerqg@amazon.com>

---------

Signed-off-by: Aswath <it.aswath@gmail.com>
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Signed-off-by: Josh Romero <rmerqg@amazon.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: Josh Romero <rmerqg@amazon.com>

CHANGELOG.md

@@ -168,6 +168,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - [Multi DataSource] UX enhancement on Index Pattern management stack ([#2505](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/2505))([#2527](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/2527))
 - [Multi DataSource] UX enhancement on Update stored password modal for Data source management stack ([#2532](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/2532))
 - [Plugin Helpers] Facilitate version changes ([#2398](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/2398))
+- [Vega] Add Filter custom label for opensearchDashboardsAddFilter ([#3640](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/3640))
 - [VisBuilder] Add an experimental table visualization in vis builder ([#2705](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/2705))
 - [VisBuilder] Add field summary popovers ([#2682](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/2682))
 - [VisBuilder] Add index pattern info when loading embeddable ([#2363](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/2363))

src/plugins/vis_type_vega/public/vega_view/vega_base_view.js

@@ -315,10 +315,15 @@ export class VegaBaseView {
   /**
    * @param {object} query Query DSL snippet, as used in the query DSL editor
    * @param {string} [index] as defined in OpenSearch Dashboards, or default if missing
+   * @param {string} alias OpenSearch Query DSL's custom label for `opensearchDashboardsAddFilter`, as used in '+ Add Filter'
    */
-  async addFilterHandler(query, index) {
+  async addFilterHandler(query, index, alias) {
     const indexId = await this.findIndex(Utils.handleNonStringIndex(index));
-    const filter = opensearchFilters.buildQueryFilter(Utils.handleInvalidQuery(query), indexId);
+    const filter = opensearchFilters.buildQueryFilter(
+      Utils.handleInvalidQuery(query),
+      indexId,
+      alias
+    );
     this._applyFilter({ filters: [filter] });
   }