Fix empty vector write in ForwardIterator

cb9459f8 · Dmitri Smirnov · a163cc2d · cb9459f8
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Showing with 1 addition and 1 deletion

db/forward_iterator.cc db/forward_iterator.cc +1 -1

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--- a/db/forward_iterator.cc
+++ b/db/forward_iterator.cc
@@ -575,8 +575,8 @@ void ForwardIterator::BuildLevelIterators(const VersionStorageInfo* vstorage) {
         (user_comparator_->Compare(*read_options_.iterate_upper_bound,
                                    level_files[0]->smallest.user_key()) <
          0))) {
-      level_iters_[level - 1] = nullptr;
      if (!level_files.empty()) {
+        level_iters_[level - 1] = nullptr;
        has_iter_trimmed_for_upper_bound_ = true;
      }
    } else {