Function duplicateJoinKeyCheck

bolt/exec/IndexLookupJoin.cpp:40–47

namespace bytedance::bolt::exec {
namespace {
void duplicateJoinKeyCheck(
    const std::vector<core::FieldAccessTypedExprPtr>& keys) {
  folly::F14FastSet<std::string> lookupKeyNames;
  for (const auto& key : keys) {
    lookupKeyNames.insert(key->name());
  }
  BOLT_USER_CHECK_EQ(lookupKeyNames.size(), keys.size());
}
} // namespace
IndexLookupJoin::IndexLookupJoin(
    int32_t operatorId,