Native Bulk Element Deletion API

common/api/core-backend.api.md

@@ -3868,6 +3868,8 @@ export namespace IModelDb {
         // @beta
         deleteDefinitionElements(definitionElementIds: Id64Array): Id64Set;
         deleteElement(ids: Id64Arg): void;
+        // @beta
+        deleteElements(ids: Id64Array, skipHandlerCallbacks?: boolean): Id64Set;
         getAspect(aspectInstanceId: Id64String): ElementAspect;
         getAspects(elementId: Id64String, aspectClassFullName?: string, excludedClassFullNames?: Set<string>): ElementAspect[];
         getElement<T extends Element_2>(elementId: Id64String | GuidString | Code | ElementLoadProps, elementClass?: EntityClassType<Element_2>): T;
@@ -3880,6 +3882,8 @@ export namespace IModelDb {
         hasSubModel(elementId: Id64String): boolean;
         insertAspect(aspectProps: ElementAspectProps): Id64String;
         insertElement(elProps: ElementProps, options?: InsertElementOptions): Id64String;
+        // @beta
+        purgeDefinitionElements(definitionElementIds: Id64Array): Id64Set;
         // @internal
         _queryAspects(elementId: Id64String, fromClassFullName: string, excludedClassFullNames?: Set<string>): ElementAspect[];
         queryChildren(elementId: Id64String): Id64String[];

common/changes/@itwin/core-backend/rohitptnkr-bulk-element-deletion_2026-03-03-14-06.json

@@ -0,0 +1,10 @@
+{
+  "changes": [
+    {
+      "packageName": "@itwin/core-backend",
+      "comment": "Added native apis to bulk delete definition and non-definition elements",
+      "type": "none"
+    }
+  ],
+  "packageName": "@itwin/core-backend"
+}

core/backend/src/IModelDb.ts

@@ -2851,6 +2851,17 @@ export namespace IModelDb {
       });
     }
 
+    /**
+     * Delete multiple elements from the model.
+     * @param ids The identifiers of the elements to delete.
+     * @returns A set of identifiers for any elements that could not be deleted.
+     * @beta
+     */
+    public deleteElements(ids: Id64Array, skipHandlerCallbacks: boolean = false): Id64Set {
+      const failedToDelete = this._iModel[_nativeDb].deleteElements(ids, skipHandlerCallbacks);
+      return failedToDelete ? Id64.toIdSet(failedToDelete) : new Set<Id64String>();
+    }
+
     /** DefinitionElements can only be deleted if it can be determined that they are not referenced by other Elements.
      * This *usage query* can be expensive since it may involve scanning the GeometryStreams of all GeometricElements.
      * Since [[deleteElement]] does not perform these additional checks, it fails in order to prevent potentially referenced DefinitionElements from being deleted.
@@ -2933,6 +2944,18 @@ export namespace IModelDb {
       return usedIdSet;
     }
 
+    /**
+     * Purge the specified DefinitionElements from the model.
+     * Unlike deleteDefinitionElements, this method handles parent-child hierarchies and intra set code scope conflicts without failing, at the expense of a marginal performance hit.
+     * @param definitionElementIds The identifiers of the DefinitionElements to purge.
+     * @returns A set of identifiers for any DefinitionElements that could not be deleted.
+     * @beta
+     */
+    public purgeDefinitionElements(definitionElementIds: Id64Array): Id64Set {
+      const failedToDelete = this._iModel[_nativeDb].deleteDefinitionElements(definitionElementIds);
+      return failedToDelete ? Id64.toIdSet(failedToDelete) : new Set<Id64String>();
+    }
+
     /** Query for the child elements of the specified element.
      * @returns Returns an array of child element identifiers.
      * @throws [[IModelError]]