support aggregation group by (#49)

* support aggregation group by
* support recursive aggregation
* fixed some bugs
* added e2e testing

.github/workflows/test.yml

@@ -9,13 +9,30 @@ on:
 jobs:
   unitests:
     runs-on: 'ubuntu-latest'
+    services:
+        postgres:
+            image: postgres:latest
+            env:
+              POSTGRES_USER: postgres
+              POSTGRES_DB: postgres
+              POSTGRES_PASSWORD: ""
+              POSTGRES_HOST_AUTH_METHOD: trust
+            ports:
+              - 5432:5432
+            options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
     steps:
+      - run: |
+          sudo apt-get update
+          sudo apt-get install --yes --no-install-recommends postgresql-client
       - name: Set up Go 1.x
         uses: actions/setup-go@v2
         with:
           go-version: ^1.17
       - name: Check out code into the Go module directory
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
+      # run the sql script init.sql in workflows/data
+      - run: |
+          psql -h localhost -U postgres -f .github/workflows/data/init.sql
       - run: go mod download
       - name: Test
         run: go test -v ./...

examples/interface/graph/fastgql.graphql

@@ -1,11 +1,13 @@
 directive @fastgqlField(skipSelect: Boolean = True) on FIELD_DEFINITION
-directive @isInterfaceFilter on INPUT_FIELD_DEFINITION
 directive @generate(filter: Boolean = True, pagination: Boolean = True, ordering: Boolean = True, aggregate: Boolean = True, recursive: Boolean = True, filterTypeName: String) on FIELD_DEFINITION
 directive @generateFilterInput(description: String) on OBJECT | INTERFACE
 directive @generateMutations(create: Boolean = True, delete: Boolean = True, update: Boolean = True) on OBJECT
+directive @isInterfaceFilter on INPUT_FIELD_DEFINITION
 directive @relation(type: _relationType!, fields: [String!]!, references: [String!]!, manyToManyTable: String = "", manyToManyFields: [String] = [], manyToManyReferences: [String] = []) on FIELD_DEFINITION
 directive @table(name: String!, dialect: String! = "postgres", schema: String = "") on OBJECT | INTERFACE
 directive @typename(name: String!) on INTERFACE
+scalar Map
+
 input BooleanComparator {
 	eq: Boolean
 	neq: Boolean