diff --git a/be/src/vec/data_types/convert_field_to_type.cpp b/be/src/vec/data_types/convert_field_to_type.cpp
index ecbce03ba6b10a9..b30657070706eee 100644
--- a/be/src/vec/data_types/convert_field_to_type.cpp
+++ b/be/src/vec/data_types/convert_field_to_type.cpp
@@ -33,6 +33,7 @@
 #include "common/exception.h"
 #include "common/status.h"
 #include "util/bitmap_value.h"
+#include "util/jsonb_document.h"
 #include "util/jsonb_writer.h"
 #include "vec/common/field_visitors.h"
 #include "vec/common/typeid_cast.h"
@@ -111,6 +112,14 @@ class FieldVisitorToJsonb : public StaticVisitor<void> {
         writer->writeString(x);
         writer->writeEndString();
     }
+    void operator()(const JsonbField& x, JsonbWriter* writer) const {
+        const JsonbValue* value = JsonbDocument::createValue(x.get_value(), x.get_size());
+        if (value == nullptr) {
+            throw doris::Exception(ErrorCode::INVALID_ARGUMENT, "Failed to create JsonbValue");
+        }
+        writer->writeValue(value);
+    }
+
     void operator()(const Array& x, JsonbWriter* writer) const;
 
     void operator()(const Tuple& x, JsonbWriter* writer) const {
@@ -146,9 +155,6 @@ class FieldVisitorToJsonb : public StaticVisitor<void> {
     void operator()(const Map& x, JsonbWriter* writer) const {
         throw doris::Exception(doris::ErrorCode::NOT_IMPLEMENTED_ERROR, "Not implemeted");
     }
-    void operator()(const JsonbField& x, JsonbWriter* writer) const {
-        throw doris::Exception(doris::ErrorCode::NOT_IMPLEMENTED_ERROR, "Not implemeted");
-    }
 };
 
 void FieldVisitorToJsonb::operator()(const Array& x, JsonbWriter* writer) const {
diff --git a/be/src/vec/data_types/serde/data_type_object_serde.cpp b/be/src/vec/data_types/serde/data_type_object_serde.cpp
index f39c9a8111e05c9..0a3177bc7819b06 100644
--- a/be/src/vec/data_types/serde/data_type_object_serde.cpp
+++ b/be/src/vec/data_types/serde/data_type_object_serde.cpp
@@ -169,7 +169,9 @@ Status DataTypeObjectSerDe::write_one_cell_to_json(
         var.assume_mutable()->finalize();
     }
     result.SetObject();
-    for (const auto& entry : var.get_subcolumns()) {
+    // sort to make output stable, todo add a config
+    auto subcolumns = schema_util::get_sorted_subcolumns(var.get_subcolumns());
+    for (const auto& entry : subcolumns) {
         const auto& subcolumn = entry->data.get_finalized_column();
         const auto& subtype_serde = entry->data.get_least_common_type_serde();
         const auto& subtype = entry->data.get_least_common_type();
diff --git a/regression-test/data/variant_p0/nested.out b/regression-test/data/variant_p0/nested.out
index e43ded4d2fdc96f..8510505e757bc69 100644
--- a/regression-test/data/variant_p0/nested.out
+++ b/regression-test/data/variant_p0/nested.out
@@ -109,16 +109,16 @@ v.xx	tinyint	Yes	false	\N	NONE
 120	{"nested120":{"nested":[{"yyyxxxx":"11111"},{"ax1111":"1111"},{"axxxb":100,"xxxy111":111},{"aaa":"11","ddsss":1024},{"xx":10}]},"not nested":1024,"not nested2":{"llll":123}}
 
 -- !sql --
-201	{"k1":1,"k2":"some","k3":[1234],"k4":1.1,"k5":[[123]],"nested1":{"nested2":[{"c":"1111","b":1.1,"a":10}]}}
-202	{"k1":1,"k2":"some","k3":[1234],"k4":1.1,"k5":[[123]],"nested1":{"nested2":[{"c":"1111","b":1.1,"a":10}]}}
-203	{"k1":1,"k2":"some","k3":[1234],"k4":1.1,"k5":[[123]],"nested1":{"nested2":[{"c":"1111","b":1.1,"a":10}]}}
-204	{"k1":1,"k2":"some","k3":[1234],"k4":1.1,"k5":[[123]],"nested1":{"nested2":[{"c":"1111","b":1.1,"a":10}]}}
-205	{"k1":1,"k2":"some","k3":[1234],"k4":1.1,"k5":[[123]],"nested1":{"nested2":[{"c":"1111","b":1.1,"a":10}]}}
-206	{"k1":1,"k2":"some","k3":[1234],"k4":1.1,"k5":[[123]],"nested1":{"nested2":[{"c":"1111","b":1.1,"a":10}]}}
-207	{"k1":1,"k2":"some","k3":[1234],"k4":1.1,"k5":[[123]],"nested1":{"nested2":[{"c":"1111","b":1.1,"a":10}]}}
-208	{"k1":1,"k2":"some","k3":[1234],"k4":1.1,"k5":[[123]],"nested1":{"nested2":[{"c":"1111","b":1.1,"a":10}]}}
-209	{"k1":1,"k2":"some","k3":[1234],"k4":1.1,"k5":[[123]],"nested1":{"nested2":[{"c":"1111","b":1.1,"a":10}]}}
-210	{"k1":1,"k2":"some","k3":[1234],"k4":1.1,"k5":[[123]],"nested1":{"nested2":[{"c":"1111","b":1.1,"a":10}]}}
+201	{"k1":1,"k2":"some","k3":[1234],"k4":1.1,"k5":[[123]],"nested1":{"nested2":[{"a":10,"b":1.1,"c":"1111"}]}}
+202	{"k1":1,"k2":"some","k3":[1234],"k4":1.1,"k5":[[123]],"nested1":{"nested2":[{"a":10,"b":1.1,"c":"1111"}]}}
+203	{"k1":1,"k2":"some","k3":[1234],"k4":1.1,"k5":[[123]],"nested1":{"nested2":[{"a":10,"b":1.1,"c":"1111"}]}}
+204	{"k1":1,"k2":"some","k3":[1234],"k4":1.1,"k5":[[123]],"nested1":{"nested2":[{"a":10,"b":1.1,"c":"1111"}]}}
+205	{"k1":1,"k2":"some","k3":[1234],"k4":1.1,"k5":[[123]],"nested1":{"nested2":[{"a":10,"b":1.1,"c":"1111"}]}}
+206	{"k1":1,"k2":"some","k3":[1234],"k4":1.1,"k5":[[123]],"nested1":{"nested2":[{"a":10,"b":1.1,"c":"1111"}]}}
+207	{"k1":1,"k2":"some","k3":[1234],"k4":1.1,"k5":[[123]],"nested1":{"nested2":[{"a":10,"b":1.1,"c":"1111"}]}}
+208	{"k1":1,"k2":"some","k3":[1234],"k4":1.1,"k5":[[123]],"nested1":{"nested2":[{"a":10,"b":1.1,"c":"1111"}]}}
+209	{"k1":1,"k2":"some","k3":[1234],"k4":1.1,"k5":[[123]],"nested1":{"nested2":[{"a":10,"b":1.1,"c":"1111"}]}}
+210	{"k1":1,"k2":"some","k3":[1234],"k4":1.1,"k5":[[123]],"nested1":{"nested2":[{"a":10,"b":1.1,"c":"1111"}]}}
 
 -- !sql --
 201	{"k1":1,"k2":"some","k3":[1234],"k4":1.1,"k5":[[123]],"nested1":{"nested2":[{"a":10,"b":1.1,"c":"1111"}]}}
diff --git a/regression-test/suites/variant_p0/desc.groovy b/regression-test/suites/variant_p0/desc.groovy
index 5efcda3a04308e2..fadf7aad65da050 100644
--- a/regression-test/suites/variant_p0/desc.groovy
+++ b/regression-test/suites/variant_p0/desc.groovy
@@ -94,6 +94,7 @@ suite("regression_test_variant_desc", "nonConcurrent"){
     }
 
     try {
+        sql "set use_variant_as_complex_variant = false"
         // sparse columns
         def table_name = "sparse_columns"
         create_table table_name
diff --git a/regression-test/suites/variant_p0/nested.groovy b/regression-test/suites/variant_p0/nested.groovy
index a2a3355854f7c6c..7553cae38c878b9 100644
--- a/regression-test/suites/variant_p0/nested.groovy
+++ b/regression-test/suites/variant_p0/nested.groovy
@@ -21,7 +21,7 @@ suite("regression_test_variant_nested", "p0"){
     getBackendIpHttpPort(backendId_to_backendIP, backendId_to_backendHttpPort);
 
     try {
- 
+        sql "set use_variant_as_complex_variant = false"
         def table_name = "var_nested"
         sql "DROP TABLE IF EXISTS ${table_name}"
 
diff --git a/regression-test/suites/variant_p0/test_sub_path_pruning.groovy b/regression-test/suites/variant_p0/test_sub_path_pruning.groovy
index f09f4713ad29e52..19beb1f82a152b9 100644
--- a/regression-test/suites/variant_p0/test_sub_path_pruning.groovy
+++ b/regression-test/suites/variant_p0/test_sub_path_pruning.groovy
@@ -34,6 +34,7 @@ suite("variant_sub_path_pruning", "variant_type"){
     """
 
     sql "sync"
+    sql "set use_variant_as_complex_variant = false"
 
     // project