fix

Author: lxy-9602

src/paimon/common/global_index/bitmap_global_index_result_test.cpp

@@ -188,11 +188,18 @@ TEST_F(BitmapGlobalIndexResultTest, TestFromRanges) {
 }
 
 TEST_F(BitmapGlobalIndexResultTest, TestAddOffset) {
-    auto result = BitmapGlobalIndexResult::FromRanges({Range(0, 5)});
-    ASSERT_OK_AND_ASSIGN(auto result_with_offset, result->AddOffset(0));
-    ASSERT_EQ(result_with_offset->ToString(), "{0,1,2,3,4,5}");
+    {
+        auto result = BitmapGlobalIndexResult::FromRanges({Range(0, 5)});
+        ASSERT_OK_AND_ASSIGN(auto result_with_offset, result->AddOffset(0));
+        ASSERT_EQ(result_with_offset->ToString(), "{0,1,2,3,4,5}");
 
-    ASSERT_OK_AND_ASSIGN(result_with_offset, result->AddOffset(10));
-    ASSERT_EQ(result_with_offset->ToString(), "{10,11,12,13,14,15}");
+        ASSERT_OK_AND_ASSIGN(result_with_offset, result->AddOffset(10));
+        ASSERT_EQ(result_with_offset->ToString(), "{10,11,12,13,14,15}");
+    }
+    {
+        auto result = BitmapGlobalIndexResult::FromRanges({});
+        ASSERT_OK_AND_ASSIGN(auto result_with_offset, result->AddOffset(10));
+        ASSERT_EQ(result_with_offset->ToString(), "{}");
+    }
 }
 }  // namespace paimon::test

src/paimon/common/global_index/bitmap_topk_global_index_result_test.cpp

@@ -237,11 +237,21 @@ TEST_F(BitmapTopKGlobalIndexResultTest, TestInvalidOr) {
 }
 
 TEST_F(BitmapTopKGlobalIndexResultTest, TestAddOffset) {
-    std::vector<int64_t> ids = {1, 2, 3};
-    std::vector<float> scores = {1.1f, 1.2f, 1.3f};
-    auto index_result = std::make_shared<BitmapTopKGlobalIndexResult>(RoaringBitmap64::From(ids),
-                                                                      std::move(scores));
-    ASSERT_OK_AND_ASSIGN(auto result_with_offset, index_result->AddOffset(10));
-    ASSERT_EQ(result_with_offset->ToString(), "row ids: {11,12,13}, scores: {1.1,1.2,1.3}");
+    {
+        std::vector<int64_t> ids = {1, 2, 3};
+        std::vector<float> scores = {1.1f, 1.2f, 1.3f};
+        auto index_result = std::make_shared<BitmapTopKGlobalIndexResult>(
+            RoaringBitmap64::From(ids), std::move(scores));
+        ASSERT_OK_AND_ASSIGN(auto result_with_offset, index_result->AddOffset(10));
+        ASSERT_EQ(result_with_offset->ToString(), "row ids: {11,12,13}, scores: {1.1,1.2,1.3}");
+    }
+    {
+        std::vector<int64_t> ids = {};
+        std::vector<float> scores = {};
+        auto index_result = std::make_shared<BitmapTopKGlobalIndexResult>(
+            RoaringBitmap64::From(ids), std::move(scores));
+        ASSERT_OK_AND_ASSIGN(auto result_with_offset, index_result->AddOffset(10));
+        ASSERT_EQ(result_with_offset->ToString(), "row ids: {}, scores: {}");
+    }
 }
 }  // namespace paimon::test

src/paimon/common/utils/roaring_bitmap64.cpp

@@ -126,7 +126,7 @@ RoaringBitmap64::RoaringBitmap64(const RoaringBitmap32& other) noexcept {
 }
 
 RoaringBitmap64& RoaringBitmap64::operator=(const RoaringBitmap32& other) noexcept {
-    auto bitmap32 = (static_cast<roaring::Roaring*>(other.roaring_bitmap_));
+    auto bitmap32 = static_cast<roaring::Roaring*>(other.roaring_bitmap_);
     if (!roaring_bitmap_) {
         roaring_bitmap_ = new roaring::Roaring64Map(*bitmap32);
     } else {