message: Add format benchmark
diff: @@ -32,6 +32,29 @@ string BenchmarkInfo() override {
  }
  FINISH_BENCHMARK(CastIntToString)
  +DUCKDB_BENCHMARK(FormatIntToString, "[cast]")
  +void Load(DuckDBBenchmarkState *state) override {
  + state->conn.Query("CREATE TABLE integers(i INTEGER);");
  + Appender appender(state->conn, "integers");
  + // insert the elements into the database
  + for (int i = 0; i < CAST_COUNT; i++) {
  + appender.AppendRow(i);
  + }
  +}
  +string GetQuery() override {
  + return "SELECT format('{}', i) FROM integers";
  +}
  +string VerifyResult(QueryResult *result) override {
  + if (!result->success) {
  + return result->error;
  + }
  + return string();
  +}
  +string BenchmarkInfo() override {
  + return "Convert integer to string using format function";
  +}
  +FINISH_BENCHMARK(FormatIntToString)
  +
  DUCKDB_BENCHMARK(CastDoubleToString, "[cast]")
  void Load(DuckDBBenchmarkState *state) override {
  state->conn.Query("CREATE TABLE doubles(i DOUBLE);");
  