Update config.yml

.circleci/config.yml

@@ -1,11 +1,17 @@
 version: 2.1
 executors:
-  node-executor:
-    docker:
-      - image: circleci/node:12
-        auth:
-          username: $DOCKERHUB_LOGIN
-          password: $DOCKERHUB_PASSWORD
+  - node-executor:
+      docker:
+        - image: circleci/node:12
+          auth:
+            username: $DOCKERHUB_LOGIN
+            password: $DOCKERHUB_PASSWORD
+  - postgresql-executor:
+      docker:
+        - image: circleci/postgres
+          auth:
+            username: $DOCKERHUB_LOGIN
+            password: $DOCKERHUB_PASSWORD
 jobs:
   build:
     executor: node-executor
@@ -36,6 +42,9 @@ jobs:
       - restore_cache:
           name: Restore yarn package cache
           key: npm-v7-dependencies-{{ checksum "yarn.lock" }}
+      - run:
+          name: Start PostgreSQL database
+          command:
       - run: 
           name: Run test with jest
           command: yarn test:ci