fix(types): add using & operator index interface (#10813)

types/lib/model.d.ts

@@ -1117,6 +1117,16 @@ export interface ModelIndexesOptions {
    * should be sorted in), `collate` (the collation (sort order) for the column)
    */
   fields?: (string | { attribute: string; length: number; order: string; collate: string })[];
+
+  /**
+   * Type of search index. Postgres only
+   */
+  using?: string;
+
+  /**
+   * Index operator type. Postgres only
+   */
+  operator?: string;
 }
 
 /**

types/test/model.ts

-import { Association, HasOne, Model } from 'sequelize';
+import { Association, HasOne, Model, Sequelize, DataTypes } from 'sequelize';
 
 class MyModel extends Model {
   public static associations: {
@@ -10,3 +10,17 @@ class MyModel extends Model {
 }
 
 const assoc: Association = MyModel.associations.other;
+
+const sequelize = new Sequelize('mysql://user:user@localhost:3306/mydb');
+
+MyModel.init({}, {
+  indexes: [
+    {
+      fields: ['foo'],
+      using: 'gin',
+      operator: 'jsonb_path_ops',
+    }
+  ],
+  sequelize,
+  tableName: 'my_model'
+});
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