testcase.patch

diff --git a/db/external_sst_file_test.cc b/db/external_sst_file_test.cc
index ebd6cb2b1..5e5c0527c 100644
--- a/db/external_sst_file_test.cc
+++ b/db/external_sst_file_test.cc
@@ -2335,6 +2335,34 @@ TEST_F(ExternalSSTFileTest, SkipBloomFilter) {
   }
 }
 
+TEST_F(ExternalSSTFileTest, IngestMultipleFilesToL0) {
+  const int kNumLevels = 2;
+  const int kNumFilesPerLevel = 2;
+  Options options = CurrentOptions();
+  options.num_levels = kNumLevels;
+  DestroyAndReopen(options);
+  for (int l = 0; l < kNumLevels; ++l) {
+    IngestExternalFileOptions ifo;
+    ifo.allow_global_seqno = true;
+    std::vector<std::vector<std::pair<std::string, std::string>>> data;
+    data.push_back(
+        {std::make_pair("foo1", "fv1"), std::make_pair("foo2", "fv2")});
+    data.push_back(
+        {std::make_pair("bar1", "bv1"), std::make_pair("bar2", "bv2")});
+    std::vector<std::map<std::string, std::string>> true_data(kNumFilesPerLevel);
+    int file_id = (++last_file_id_);
+    Status s;
+    std::vector<std::string> external_file_paths(kNumFilesPerLevel);
+    for (size_t i = 0; i != kNumFilesPerLevel; ++i) {
+      ASSERT_OK(GenerateOneExternalFile(
+          options, dbfull()->DefaultColumnFamily(), data[i], file_id, false,
+          &external_file_paths[i], &true_data[i]));
+      ++file_id;
+    }
+    ASSERT_OK(db_->IngestExternalFile(dbfull()->DefaultColumnFamily(), external_file_paths, ifo));
+  }
+}
+
 TEST_F(ExternalSSTFileTest, IngestFileWrittenWithCompressionDictionary) {
   if (!ZSTD_Supported()) {
     return;