It should raise InvalidDsl exception when search with multi vectors (#4255)

* It should raise InvalidDsl exception when search with multi vectors
Signed-off-by: Nfishpenguin <kun.yu@zilliz.com>

* change stat_optimizer_enable to true
Signed-off-by: Nfishpenguin <kun.yu@zilliz.com>

CHANGELOG.md

@@ -14,6 +14,7 @@ Please mark all changes in change log and use the issue from GitHub
 -   \#4170 Must_not query check failed in dsl
 -   \#4200 The scalar field information of search result is wrong after some entities deleted
 -   \#4205 Restful API error: When the specified partition is retrieved, the partition_tag is not valid
+-   \#4211 It should raise InvalidDsl exception when search with multi vectors
 -   \#4226 The Prometheus performance metrics sent by Milvus 0.11.0 is not right
 -   \#4242 Fix query hang up at unittest case
 

core/src/config/ConfigInit.cpp

@@ -181,7 +181,7 @@ InitConfig() {
          CreateEnumConfig("engine.simd_type", &SimdMap, &config.engine.simd_type.value, SimdType::AUTO)},
 
         {"engine.stat_optimizer_enable",
-         CreateBoolConfig("engine.stat_optimizer_enable", &config.engine.stat_optimizer_enable.value, false)},
+         CreateBoolConfig("engine.stat_optimizer_enable", &config.engine.stat_optimizer_enable.value, true)},
 
         {"system.lock.enable", CreateBoolConfig("system.lock.enable", &config.system.lock.enable.value, true)},
 

core/src/server/grpc_impl/GrpcRequestHandler.cpp

@@ -1719,8 +1719,8 @@ GrpcRequestHandler::DeserializeJsonToBoolQuery(
             return Status{SERVER_INVALID_ARGUMENT, "Query dsl is null"};
         }
         auto status = Status::OK();
-        if (vector_params.empty()) {
-            return Status(SERVER_INVALID_DSL_PARAMETER, "DSL must include vector query");
+        if (vector_params.size() != 1) {
+            return Status(SERVER_INVALID_DSL_PARAMETER, "There should only be one vector query");
         }
         for (const auto& vector_param : vector_params) {
             const std::string& vector_string = vector_param.json();

core/src/server/web_impl/README.md

@@ -792,6 +792,7 @@ $ curl -X GET "http://127.0.0.1:19121/collections/test_collection/segments/15837
                 }
             ],
         },
+        partition_tags: ["part_1", "part_2"],
         "fields": ["field_vec"]
     }
 }
@@ -836,7 +837,7 @@ $ curl -X PUT "http://127.0.0.1:19121/collections/test_collection/entities" -H "
     "code": 0,
     "message": "OK",
     "data": {
-        "num": 2,
+        "nq": 2,
         "result": [
             [
                 {