feat: support openGauss vector database (#15865)

api/tests/integration_tests/vdb/opengauss/test_opengauss.py

@@ -0,0 +1,40 @@
+import time
+
+from core.rag.datasource.vdb.opengauss.opengauss import OpenGauss, OpenGaussConfig
+from tests.integration_tests.vdb.test_vector_store import (
+    AbstractVectorTest,
+    get_example_text,
+    setup_mock_redis,
+)
+
+
+class OpenGaussTest(AbstractVectorTest):
+    def __init__(self):
+        super().__init__()
+        max_retries = 5
+        retry_delay = 20
+        retry_count = 0
+        while retry_count < max_retries:
+            try:
+                config = OpenGaussConfig(
+                    host="localhost",
+                    port=6600,
+                    user="postgres",
+                    password="Dify@123",
+                    database="dify",
+                    min_connection=1,
+                    max_connection=5,
+                )
+                break
+            except psycopg2.OperationalError as e:
+                retry_count += 1
+                if retry_count < max_retries:
+                    time.sleep(retry_delay)
+        self.vector = OpenGauss(
+            collection_name=self.collection_name,
+            config=config,
+        )
+
+
+def test_opengauss(setup_mock_redis):
+    OpenGaussTest().run_all_tests()