From acf87c1d10fb39291af387a2dd0bd22b5467b613 Mon Sep 17 00:00:00 2001
From: avogar <pav.cruglov@yandex.ru>
Date: Wed, 31 Aug 2022 14:10:29 +0000
Subject: [PATCH] Fix nested JSON Objects schema inference

---
 src/Formats/JSONUtils.cpp | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/src/Formats/JSONUtils.cpp b/src/Formats/JSONUtils.cpp
index 895833abf4d..9aa0645f580 100644
--- a/src/Formats/JSONUtils.cpp
+++ b/src/Formats/JSONUtils.cpp
@@ -218,7 +218,6 @@ namespace JSONUtils
         {
             auto object = field.getObject();
             DataTypes value_types;
-            bool have_object_value = false;
             for (const auto key_value_pair : object)
             {
                 auto type = getDataTypeFromFieldImpl(key_value_pair.second, settings, numbers_parsed_from_json_strings);
@@ -226,10 +225,7 @@ namespace JSONUtils
                     continue;
 
                 if (isObject(type))
-                {
-                    have_object_value = true;
-                    break;
-                }
+                    return std::make_shared<DataTypeObject>("json", true);
 
                 value_types.push_back(type);
             }
@@ -242,7 +238,7 @@ namespace JSONUtils
             for (size_t i = 1; i < value_types.size(); ++i)
                 are_types_equal &= value_types[i]->equals(*value_types[0]);
 
-            if (have_object_value || !are_types_equal)
+            if (!are_types_equal)
                 return std::make_shared<DataTypeObject>("json", true);
 
             return std::make_shared<DataTypeMap>(std::make_shared<DataTypeString>(), value_types[0]);