Support the tck format for the output of EXPLAIN

src/graph/service/QueryInstance.cpp

@@ -113,31 +113,14 @@ Status QueryInstance::validateAndOptimize() {
  return Status::OK();
 }
 
-// Check format type string, if it is "tck", return true, otherwise return false
-static bool isTckFmtType(const std::string& formatType) {
- if (formatType.empty()) {
- return false;
- }
-
- std::string fmtType = formatType;
- std::transform(formatType.cbegin(), formatType.cend(), fmtType.begin(), [](char c) {
- return std::tolower(c);
- });
-
- return fmtType == "tck";
-}
-
 bool QueryInstance::explainOrContinue() {
  if (sentence_->kind() != Sentence::Kind::kExplain) {
  return true;
  }
  auto &resp = qctx_->rctx()->resp();
  resp.planDesc = std::make_unique<PlanDescription>();
  DCHECK_NOTNULL(qctx_->plan())->describe(resp.planDesc.get());
- const auto *explainSentence = static_cast<const ExplainSentence *>(sentence_.get());
- auto is_profile = explainSentence->isProfile();
- auto is_tck_fmt_type = isTckFmtType(explainSentence->formatType());
- return is_profile || is_tck_fmt_type;
+ return static_cast<const ExplainSentence *>(sentence_.get())->isProfile();
 }
 
 void QueryInstance::onFinish() {