* fix: uppertable metacache
 todo:Fix lockkey case difference #846

* increase uppertablename and  Fix lockkey case difference #846

* Fix test case difference #846

* Fix test case difference #846

* reduce uppertablename col #846

* reduce uppertablename #846

* fix test #846

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Co-authored-by: FengZhang <zfcode@qq.com>

* Refer to buildlockkey2 optimization #829

* Time complexity O(NM)-> O(NK) about buildlockkey and buildlockkey2  Increased readability  #829

* update import sort #829

* update Encapsulation into util packages #829

Signed-off-by: LeeHao <1838249551@qq.com>

* optimize: optimize the speed of buildLockKey

* improve unit testing of buildLockKey

* fix the situation where primaryKeyValues contains nil value

* update the unit test of buildLockKey

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Co-authored-by: JayLiu <38887641+luky116@users.noreply.github.com>

* fix the problem of mock replacing mysql.GetTableMeta in TestBuildSelectSQLByUpdate

* fix the problem of MySQLUpdateUndoLogBuilder failing to generate undo log sql

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Co-authored-by: JayLiu <38887641+luky116@users.noreply.github.com>

optimize go imports style

* add data check before rollbeck

fix decode image

fix ColumnType

optimize  rollback

* feat: modify some receiver name

* feat: add no transaction test

* feat: update batch delete

* optimize at

add insert undo log function

optimize at model

* add select for update

feat: add multi update

feat: add mysql update after undo log builder

* feat: add sync worker and fmt

* feat: update

* feat: update

* feat: update

* feat: update

* feat: update

* feat: update

* feat: update

* feat: fix spell

* feat: fix conflict

Co-authored-by: Xin.Zh <dragoncharlie@foxmail.com>
Co-authored-by: haohongfan1 <haohongfan1@jd.com>

feat: add mysql update undo log builder