From d7c47a79058ee9cffe2e6aeec9a4b9b6c4dac9c5 Mon Sep 17 00:00:00 2001
From: groot <yhmo@zeronedata.com>
Date: Fri, 10 Jul 2020 16:49:47 +0800
Subject: [PATCH] fix #2752 (#2789)

* fix #2752

Signed-off-by: yhmo <yihua.mo@zilliz.com>

* typo

Signed-off-by: yhmo <yihua.mo@zilliz.com>

* typo

Signed-off-by: yhmo <yihua.mo@zilliz.com>
---
 CHANGELOG.md                                           | 1 +
 core/src/server/web_impl/handler/WebRequestHandler.cpp | 7 +++++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 978efae8f3..4e44d79764 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,7 @@ Please mark all change in change log and use the issue from GitHub
 -   \#2690 Remove body parser in show-partitions endpoints
 -   \#2692 Milvus hangs during multi-thread concurrent search
 -   \#2739 Fix mishards start failed
+-   \#2752 Milvus formats vectors data to double-precision and return to http client
 -   \#2767 fix a bug of getting wrong nprobe limitation in knowhere on GPU version
 -   \#2776 Fix too many data copies during creating IVF index
 
diff --git a/core/src/server/web_impl/handler/WebRequestHandler.cpp b/core/src/server/web_impl/handler/WebRequestHandler.cpp
index b857220dce..69adb6e76c 100644
--- a/core/src/server/web_impl/handler/WebRequestHandler.cpp
+++ b/core/src/server/web_impl/handler/WebRequestHandler.cpp
@@ -78,6 +78,8 @@ WebErrorMap(ErrorCode code) {
     }
 }
 
+using FloatJson = nlohmann::basic_json<std::map, std::vector, std::string, bool, std::int64_t, std::uint64_t, float>;
+
 /////////////////////////////////// Private methods ///////////////////////////////////////
 void
 WebRequestHandler::AddStatusToJson(nlohmann::json& json, int64_t code, const std::string& msg) {
@@ -1690,8 +1692,9 @@ WebRequestHandler::GetVector(const OString& collection_name, const OQueryParams&
             ASSIGN_RETURN_STATUS_DTO(status)
         }
 
-        nlohmann::json json;
-        AddStatusToJson(json, status.code(), status.message());
+        FloatJson json;
+        json["code"] = (int64_t)status.code();
+        json["message"] = status.message();
         if (vectors_json.empty()) {
             json["vectors"] = std::vector<int64_t>();
         } else {