From 8ab01e5a1442c6fa6b2aca34e38e7f94329cd62b Mon Sep 17 00:00:00 2001
From: congqixia <congqi.xia@zilliz.com>
Date: Wed, 25 Oct 2023 20:08:10 +0800
Subject: [PATCH] Set ElementType for empty array FieldData (#27924)

Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
---
 pkg/util/typeutil/gen_empty_field_data.go | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/pkg/util/typeutil/gen_empty_field_data.go b/pkg/util/typeutil/gen_empty_field_data.go
index 818a8ec25f..84c00d2ede 100644
--- a/pkg/util/typeutil/gen_empty_field_data.go
+++ b/pkg/util/typeutil/gen_empty_field_data.go
@@ -96,7 +96,12 @@ func genEmptyArrayFieldData(field *schemapb.FieldSchema) *schemapb.FieldData {
 		FieldName: field.GetName(),
 		Field: &schemapb.FieldData_Scalars{
 			Scalars: &schemapb.ScalarField{
-				Data: &schemapb.ScalarField_ArrayData{ArrayData: &schemapb.ArrayArray{Data: nil}},
+				Data: &schemapb.ScalarField_ArrayData{
+					ArrayData: &schemapb.ArrayArray{
+						Data:        nil,
+						ElementType: field.GetElementType(),
+					},
+				},
 			},
 		},
 		FieldId:   field.GetFieldID(),