diff --git a/src/gausskernel/process/tcop/postgres.cpp b/src/gausskernel/process/tcop/postgres.cpp
index 3ec1a99ed..476d937d0 100755
--- a/src/gausskernel/process/tcop/postgres.cpp
+++ b/src/gausskernel/process/tcop/postgres.cpp
@@ -865,9 +865,11 @@ List* pg_parse_query(const char* query_string, List** query_string_locationlist)
 
     List* (*parser_hook)(const char*, List**) = raw_parser;
 #ifndef ENABLE_MULTIPLE_NODES
-    int id = GetCustomParserId();
-    if (id >= 0 && g_instance.raw_parser_hook[id] != NULL && u_sess->attr.attr_sql.b_sql_plugin) {
-        parser_hook = (List* (*)(const char*, List**))g_instance.raw_parser_hook[id];
+    if(u_sess->attr.attr_sql.b_sql_plugin) {
+    	int id = GetCustomParserId();
+    	if (id >= 0 && g_instance.raw_parser_hook[id] != NULL) {
+        	parser_hook = (List* (*)(const char*, List**))g_instance.raw_parser_hook[id];
+    	}
     }
 #endif
     raw_parsetree_list = parser_hook(query_string, query_string_locationlist);