Method is_interval

cpp/src/parquet/types.cc:834–836

  return impl_->type() == LogicalType::Type::TIMESTAMP;
}
bool LogicalType::is_interval() const {
  return impl_->type() == LogicalType::Type::INTERVAL;
}
bool LogicalType::is_int() const { return impl_->type() == LogicalType::Type::INT; }
bool LogicalType::is_null() const { return impl_->type() == LogicalType::Type::NIL; }
bool LogicalType::is_JSON() const { return impl_->type() == LogicalType::Type::JSON; }