create database test;

CREATE TABLE IF NOT EXISTS `runoob_tb4`(
   `runoob_id` INT AUTO_INCREMENT,
   `runoob_title` VARCHAR(100) NOT NULL,
   `runoob_author` VARCHAR(40) NOT NULL,
   `submission_date` DATE,
   PRIMARY KEY ( `runoob_id` )
)ENGINE=TIANMU;

INSERT INTO runoob_tb4
    (runoob_title, runoob_author, submission_date)
    VALUES
    ("LEARN-15", "STUDY-151", NOW());

select runoob_id,runoob_title,count(*) from runoob_tb4 where runoob_title='LEARN-15'  GROUP BY runoob_title;

DimensionGroup() : dim_group_type(DGType::DG_NOT_KNOWN), no_obj(0), locks(0) {}

types::BString RCAttr::GetNotNullValueString(const int64_t obj) {
  int pack = row2pack(obj);
  int offset = row2offset(obj);

  static const types::BString void_bs;
  if (GetPackType() == common::PackType::STR) {
    auto cur_pack = get_packS(pack);

    if (!cur_pack) {
      TIANMU_LOG(LogCtl_Level::INFO, "rc_attr:GetNotNullValueString get_packS NULL, obj: %d pack: %d offset: %d", obj,
                 pack, offset);
      return void_bs;
    }

    uint64_t p = reinterpret_cast<uint64_t>(cur_pack);
    if (0xffffffffffff == p) {
      TIANMU_LOG(LogCtl_Level::INFO, "rc_attr:GetNotNullValueString get_packS 0xffffffffffff, obj: %d pack: %d offset: %d", obj,
                 pack, offset);
      return void_bs;
    }

    ASSERT(cur_pack != NULL, "Pack ptr is null");
    ASSERT(cur_pack->IsLocked(), "Access unlocked pack");
    return cur_pack->GetValueBinary(offset);
  }
  int64_t v = GetNotNullValueInt64(obj);
  return DecodeValue_S(v);
}

Pack *RCAttr::get_pack(size_t i) { return reinterpret_cast<Pack *>(get_dpn(i).GetPackPtr() & tag_mask); }

DPN &get_dpn(size_t i) {
    if (i >= m_idx.size()) {
      TIANMU_LOG(LogCtl_Level::INFO, "rc_attr:get_dpn i: %d >= m_idx.size(): %d", i, m_idx.size());
    }

    ASSERT(i < m_idx.size(), "bad dpn index " + std::to_string(i) + "/" + std::to_string(m_idx.size()));
    return *m_share->get_dpn_ptr(m_idx[i]);
  }