diff --git a/GNUmakefile.in b/GNUmakefile.in
index 8bc0009bd..4051e3c23 100644
--- a/GNUmakefile.in
+++ b/GNUmakefile.in
@@ -93,6 +93,7 @@ install:
 	$(MAKE) install_pldebugger
 	$(MAKE) -C contrib/postgres_fdw $@
 	$(MAKE) -C contrib/hstore $@
+	@if test -d contrib/dolphin; then $(MAKE) -C contrib/dolphin $@; fi
 	+@echo "openGauss installation complete."
 endif
 endif
diff --git a/build/script/aarch64_opengauss_list b/build/script/aarch64_opengauss_list
index 89af4cb2f..67c2c55a1 100644
--- a/build/script/aarch64_opengauss_list
+++ b/build/script/aarch64_opengauss_list
@@ -60,6 +60,8 @@
 ./share/postgresql/extension/hstore.control
 ./share/postgresql/extension/security_plugin.control
 ./share/postgresql/extension/security_plugin--1.0.sql
+./share/postgresql/extension/dolphin.control
+./share/postgresql/extension/dolphin--1.0.sql
 ./share/postgresql/extension/file_fdw--1.0.sql
 ./share/postgresql/extension/plpgsql.control
 ./share/postgresql/extension/dist_fdw.control
@@ -748,6 +750,7 @@
 ./lib/postgresql/pg_plugin
 ./lib/postgresql/proc_srclib
 ./lib/postgresql/security_plugin.so
+./lib/postgresql/dolphin.so
 ./lib/postgresql/pg_upgrade_support.so
 ./lib/postgresql/java/pljava.jar
 ./lib/postgresql/postgres_fdw.so
diff --git a/build/script/opengauss_release_list_ubuntu_single b/build/script/opengauss_release_list_ubuntu_single
index 52ba5da88..03f628843 100644
--- a/build/script/opengauss_release_list_ubuntu_single
+++ b/build/script/opengauss_release_list_ubuntu_single
@@ -60,6 +60,8 @@
 ./share/postgresql/extension/hstore.control
 ./share/postgresql/extension/security_plugin.control
 ./share/postgresql/extension/security_plugin--1.0.sql
+./share/postgresql/extension/dolphin.control
+./share/postgresql/extension/dolphin--1.0.sql
 ./share/postgresql/extension/file_fdw--1.0.sql
 ./share/postgresql/extension/plpgsql.control
 ./share/postgresql/extension/dist_fdw.control
@@ -749,6 +751,7 @@
 ./lib/postgresql/pg_plugin
 ./lib/postgresql/proc_srclib
 ./lib/postgresql/security_plugin.so
+./lib/postgresql/dolphin.so
 ./lib/postgresql/pg_upgrade_support.so
 ./lib/postgresql/java/pljava.jar
 ./lib/postgresql/postgres_fdw.so
diff --git a/build/script/x86_64_opengauss_list b/build/script/x86_64_opengauss_list
index 4632f2342..d2c3c7fbc 100644
--- a/build/script/x86_64_opengauss_list
+++ b/build/script/x86_64_opengauss_list
@@ -60,6 +60,8 @@
 ./share/postgresql/extension/hstore.control
 ./share/postgresql/extension/security_plugin.control
 ./share/postgresql/extension/security_plugin--1.0.sql
+./share/postgresql/extension/dolphin.control
+./share/postgresql/extension/dolphin--1.0.sql
 ./share/postgresql/extension/file_fdw--1.0.sql
 ./share/postgresql/extension/plpgsql.control
 ./share/postgresql/extension/dist_fdw.control
@@ -748,6 +750,7 @@
 ./lib/postgresql/pg_plugin
 ./lib/postgresql/proc_srclib
 ./lib/postgresql/security_plugin.so
+./lib/postgresql/dolphin.so
 ./lib/postgresql/pg_upgrade_support.so
 ./lib/postgresql/java/pljava.jar
 ./lib/postgresql/postgres_fdw.so
diff --git a/src/gausskernel/process/tcop/postgres.cpp b/src/gausskernel/process/tcop/postgres.cpp
index 04ac21d15..c9e777ce4 100755
--- a/src/gausskernel/process/tcop/postgres.cpp
+++ b/src/gausskernel/process/tcop/postgres.cpp
@@ -822,17 +822,36 @@ void client_read_ended(void)
 }
 
 #ifndef ENABLE_MULTIPLE_NODES
-#define INIT_PLUGIN_OBJECT "init_plugin_object"
-void InitBSqlPluginHookIfNeeded()
-{
-    const char* dolphin = "dolphin";
-    CFunInfo tmpCF;
 
-    tmpCF = load_external_function(dolphin, INIT_PLUGIN_OBJECT, false, false);
+void ExecuteFunctionIfExisted(const char *filename, char *funcname)
+{
+    CFunInfo tmpCF;
+    tmpCF = load_external_function(filename, funcname, false, false);
     if (tmpCF.user_fn != NULL) {
         ((void* (*)(void))(tmpCF.user_fn))();
     }
 }
+
+bool IsFileExisted(const char *filename)
+{
+    char* fullname = expand_dynamic_library_name(filename);
+    return file_exists(fullname);
+}
+
+#define INIT_PLUGIN_OBJECT "init_plugin_object"
+#define DOLPHIN "dolphin"
+void InitBSqlPluginHookIfNeeded()
+{
+    ExecuteFunctionIfExisted(DOLPHIN, INIT_PLUGIN_OBJECT);
+}
+
+#define LOAD_DOLPHIN "create_dolphin_extension"
+void LoadDolphinIfNeeded()
+{
+    if (IsFileExisted(DOLPHIN)) {
+        ExecuteFunctionIfExisted(DOLPHIN, LOAD_DOLPHIN);
+    }
+}
 #endif
 
 /*
@@ -7574,8 +7593,12 @@ int PostgresMain(int argc, char* argv[], const char* dbname, const char* usernam
         init_set_params_htab();
 
 #ifndef ENABLE_MULTIPLE_NODES
-    if (u_sess->proc_cxt.MyDatabaseId != InvalidOid && DB_IS_CMPT(B_FORMAT) && u_sess->attr.attr_sql.dolphin) {
-        InitBSqlPluginHookIfNeeded();
+    if (u_sess->proc_cxt.MyDatabaseId != InvalidOid && DB_IS_CMPT(B_FORMAT)) {
+        if (!u_sess->attr.attr_sql.dolphin) {
+            LoadDolphinIfNeeded();
+        } else {
+            InitBSqlPluginHookIfNeeded();
+        }
     }
 #endif
 
diff --git a/src/gausskernel/process/threadpool/threadpool_worker.cpp b/src/gausskernel/process/threadpool/threadpool_worker.cpp
index ac92f6a8c..4f2dbd483 100644
--- a/src/gausskernel/process/threadpool/threadpool_worker.cpp
+++ b/src/gausskernel/process/threadpool/threadpool_worker.cpp
@@ -771,6 +771,7 @@ static void init_session_share_memory()
 
 #ifndef ENABLE_MULTIPLE_NODES
 extern void InitBSqlPluginHookIfNeeded();
+extern void LoadDolphinIfNeeded();
 #endif
 
 static bool InitSession(knl_session_context* session)
@@ -847,16 +848,20 @@ static bool InitSession(knl_session_context* session)
     t_thrd.proc_cxt.PostInit->SetDatabaseAndUser(dbname, InvalidOid, username);
     t_thrd.proc_cxt.PostInit->InitSession();
 
-#ifndef ENABLE_MULTIPLE_NODES
-    if (u_sess->proc_cxt.MyDatabaseId != InvalidOid && DB_IS_CMPT(B_FORMAT) && u_sess->attr.attr_sql.dolphin) {
-        InitBSqlPluginHookIfNeeded();
-    }
-#endif
-
     Assert(CheckMyDatabaseMatch());
 
     SetProcessingMode(NormalProcessing);
 
+#ifndef ENABLE_MULTIPLE_NODES
+    if (u_sess->proc_cxt.MyDatabaseId != InvalidOid && DB_IS_CMPT(B_FORMAT)) {
+        if (!u_sess->attr.attr_sql.dolphin) {
+            LoadDolphinIfNeeded();
+        } else {
+            InitBSqlPluginHookIfNeeded();
+        }
+    }
+#endif
+
     init_session_share_memory();
 
     BeginReportingGUCOptions();