PragmaTwice commented on code in PR #2822:
URL: https://github.com/apache/kvrocks/pull/2822#discussion_r1986562554


##########
src/commands/cmd_server.cc:
##########
@@ -1006,12 +1008,42 @@ static uint64_t GenerateConfigFlag(uint64_t flags, 
const std::vector<std::string
 
 class CommandLastSave : public Commander {
  public:
+  Status Parse(const std::vector<std::string> &args) override {
+    CommandParser parser(args, 1);
+    if (args.size() > 2) {
+      return {Status::RedisParseErr, "unknown extra arguments"};
+    }
+    while (parser.Good()) {
+      if (parser.EatEqICase("iso8601")) {
+        format_spec_ = true;
+      } else {
+        return {Status::RedisParseErr, "unknown arguments"};
+      }
+    }
+
+    return Status::OK();
+  }
   Status Execute([[maybe_unused]] engine::Context &ctx, Server *srv, 
[[maybe_unused]] Connection *conn,
                  std::string *output) override {
     int64_t unix_sec = srv->GetLastBgsaveTime();
-    *output = redis::Integer(unix_sec);
+    if (format_spec_) {
+      auto raw_time = static_cast<time_t>(unix_sec);
+      struct tm local_time;

Review Comment:
   ```suggestion
         tm local_time{};
   ```



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