fix(#3909): checkout execute_mode in config clause in sql client (#3910)

Author: aceforeverd

src/sdk/sql_cluster_router.cc

@@ -63,6 +63,7 @@
 #include "sdk/split.h"
 #include "udf/udf.h"
 #include "vm/catalog.h"
+#include "vm/engine.h"
 
 DECLARE_string(bucket_size);
 DECLARE_uint32(replica_num);
@@ -2862,7 +2863,12 @@ std::shared_ptr<hybridse::sdk::ResultSet> SQLClusterRouter::ExecuteSQL(
         }
         case hybridse::node::kPlanTypeFuncDef:
         case hybridse::node::kPlanTypeQuery: {
-            if (!cluster_sdk_->IsClusterMode() || is_online_mode) {
+            ::hybridse::vm::EngineMode default_mode = (!cluster_sdk_->IsClusterMode() || is_online_mode)
+                                                          ? ::hybridse::vm::EngineMode::kBatchMode
+                                                          : ::hybridse::vm::EngineMode::kOffline;
+            // execute_mode in query config clause takes precedence
+            auto mode = ::hybridse::vm::Engine::TryDetermineEngineMode(sql, default_mode);
+            if (mode != ::hybridse::vm::EngineMode::kOffline) {
                 // Run online query
                 return ExecuteSQLParameterized(db, sql, parameter, status);
             } else {