bugfix: mysql insert on update duplicate sensitive case not matched

[funky-eyes]

… matched

• I have registered the PR changes.

Ⅰ. Describe what this PR did

当数据库column为大写，而sql为小写时，读取parameter时匹配不上，造成了前镜像的sql为select * from table导致了全表扫描，后镜像也进行了一次全表扫描的bug

Ⅱ. Does this pull request fix one issue?

fixes #4909

Ⅲ. Why don't you add test cases (unit test/integration test)?

Ⅳ. Describe how to verify it

Ⅴ. Special notes for reviews

[codecov-commenter]

Codecov Report

Merging #4912 (f9f9550) into develop (8ec5ccd) will increase coverage by 0.01%.
The diff coverage is 45.45%.

@@              Coverage Diff              @@
##             develop    #4912      +/-   ##
=============================================
+ Coverage      49.03%   49.04%   +0.01%     
- Complexity      4087     4088       +1     
=============================================
  Files            736      736              
  Lines          25784    25785       +1     
  Branches        3180     3180              
=============================================
+ Hits           12642    12646       +4     
+ Misses         11799    11798       -1     
+ Partials        1343     1341       -2     

Impacted Files	Coverage Δ
...ava/io/seata/common/util/LowerCaseLinkHashMap.java	0.00% <0.00%> (ø)
...a/io/seata/rm/datasource/exec/ExecuteTemplate.java	5.55% <ø> (ø)
...seata/rm/datasource/undo/AbstractUndoExecutor.java	69.01% <0.00%> (ø)
...ec/mysql/MySQLInsertOnDuplicateUpdateExecutor.java	31.49% <55.55%> (ø)
...very/registry/zk/ZookeeperRegisterServiceImpl.java	61.02% <0.00%> (-0.74%)	⬇️
...n/src/main/java/io/seata/common/util/IdWorker.java	83.33% <0.00%> (+6.25%)	⬆️

[jsbxyyx]

LGTM

[lgtm-com]

This pull request introduces 1 alert when merging bdb6ee6 into 8ec5ccd - view on LGTM.com

new alerts:

• 1 for Dereferenced variable may be null

[lgtm-com]

This pull request introduces 1 alert when merging f9f9550 into b5ddb71 - view on LGTM.com

new alerts:

• 1 for Dereferenced variable may be null

[lgtm-com]

This pull request introduces 1 alert when merging 6de7b0f into b5ddb71 - view on LGTM.com

new alerts:

• 1 for Dereferenced variable may be null

[slievrly]

LGTM

[lgtm-com]

This pull request introduces 1 alert when merging 87554b6 into b5ddb71 - view on LGTM.com

new alerts:

• 1 for Dereferenced variable may be null

[luky116]

seata-go: apache/incubator-seata-go#700