gistfile1.txt

$ git diff
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;
$ KEEP_DB=1 ./external_sst_file_test --gtest_filter=ExternalSSTFileTest.IngestMultipleFilesToL0
Note: Google Test filter = ExternalSSTFileTest.IngestMultipleFilesToL0
[==========] Running 1 test from 1 test case.
[----------] Global test environment set-up.
[----------] 1 test from ExternalSSTFileTest
[ RUN      ] ExternalSSTFileTest.IngestMultipleFilesToL0
L0 file with seqno 1 1 vs. file with global_seqno 1
Received signal 6 (Aborted)
#0   /lib/x86_64-linux-gnu/libc.so.6(gsignal+0xc7) [0x7efe7f0b7e97] ??  ??:0
#1   /lib/x86_64-linux-gnu/libc.so.6(abort+0x141) [0x7efe7f0b9801] ??   ??:0
#2   ./external_sst_file_test(+0x2e6093) [0x55be0f993093] ??    ??:0
#3   ./external_sst_file_test(+0x2e6fbb) [0x55be0f993fbb] ??    ??:0
#4   ./external_sst_file_test(+0x2e55d8) [0x55be0f9925d8] ??    ??:0
#5   ./external_sst_file_test(+0x302175) [0x55be0f9af175] ??    ??:0
#6   ./external_sst_file_test(+0x304edd) [0x55be0f9b1edd] ??    ??:0
#7   ./external_sst_file_test(+0x1b6283) [0x55be0f863283] ??    ??:0
#8   ./external_sst_file_test(+0x1b4779) [0x55be0f861779] ??    ??:0
#9   ./external_sst_file_test(+0x9144d) [0x55be0f73e44d] ??     ??:0
#10  ./external_sst_file_test(+0x648cf0) [0x55be0fcf5cf0] ??    ??:0
#11  ./external_sst_file_test(+0x643c3b) [0x55be0fcf0c3b] ??    ??:0
#12  ./external_sst_file_test(+0x6295c6) [0x55be0fcd65c6] ??    ??:0
#13  ./external_sst_file_test(+0x629e16) [0x55be0fcd6e16] ??    ??:0
#14  ./external_sst_file_test(+0x62a48c) [0x55be0fcd748c] ??    ??:0
#15  ./external_sst_file_test(+0x6312ca) [0x55be0fcde2ca] ??    ??:0
#16  ./external_sst_file_test(+0x649d39) [0x55be0fcf6d39] ??    ??:0
#17  ./external_sst_file_test(+0x644923) [0x55be0fcf1923] ??    ??:0
#18  ./external_sst_file_test(+0x62feb2) [0x55be0fcdceb2] ??    ??:0
#19  ./external_sst_file_test(+0xa7088) [0x55be0f754088] ??     ??:0
#20  ./external_sst_file_test(+0x99d27) [0x55be0f746d27] ??     ??:0
#21  /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7) [0x7efe7f09ab97] ??        ??:0
#22  ./external_sst_file_test(+0x4fc0a) [0x55be0f6fcc0a] ??     ??:0
Aborted (core dumped)
$ ldb manifest_dump --path=/tmp/rocksdbtest-1000/external_sst_file_test_9939206188920710905/MANIFEST-000008 | head

--------------- Column family "default"  (ID 0) --------------
log number: 0
comparator: leveldb.BytewiseComparator
--- level 0 --- version# 1 ---
--- level 1 --- version# 1 ---
 7:848['bar1' seq:0, type:1 .. 'bar2' seq:0, type:1]
 6:848['foo1' seq:0, type:1 .. 'foo2' seq:0, type:1]
--- level 2 --- version# 1 ---
--- level 3 --- version# 1 ---
--- level 4 --- version# 1 ---