OceanBase 大赛修复issue跟踪

社区活动 OceanBase 数据库大赛
#24

issue: #618

pull request: #693

团队名称: fantasy(Github group: My-OB-contest)

备注：已提交pr，官方还未merge


#25

issue: #601

pull request: #608

github: JameyWoo

备注: 官方已 approval merge: https://github.com/oceanbase/oceanbase/pull/608

#26

issue：#595.

pull request: #701.

github或团队名称：J0kerMh

#27

issue: #612

pull request: #613

团队名称: lying_flat(Github group: nautaa)

备注: 已经merge

#28

issue: #622

pull request: #704

队名：Sunday361

备注：未merge

#29

issue: #637

pull request: #697

github： yangzecai

#30

issue：#650

pull request：#706

团队名称：TenThousand

备注：目前状态是官方已经备注/merge，但还未执行merge操作

#31

issue: #649

pull request: #673

队名：Leozki

备注：已经merge

#32

已经merge

#33

issue: #618

pull request: #693

团队名称: fantasy(Github group: My-OB-contest)

备注：已提交pr，已经merge

#34

666