[fix](nereids)the column name should be case insensitive in tablet prune

[starocean999]

CREATE TABLE `t_customers_wide_index_1` (   `CUSTOMER_ID` int NULL,   `ADDRESS` varchar(1500) NULL)DUPLICATE KEY(`CUSTOMER_ID`) DISTRIBUTED BY HASH(`CUSTOMER_ID`) BUCKETS 32;
insert into t_customers_wide_index values (1, "111");

explain SELECT * from t_customers_wide_index WHERE customer_id = 1817422; 

before this pr, the tablet prune doesn't work
tablets=32/32, tabletList=1451717,1451719,1451721 ...
after this pr, the unused tablet is pruned like bellow:
tablets=1/32, tabletList=1451767

Check List (For Author)

• Test

  • Regression test
  • Unit Test
  • Manual test (add detailed scripts or steps below)
  • No need to test or manual test. Explain why:
    • This is a refactor/code format and no logic has been changed.
    • Previous test can cover this change.
    • No code files have been changed.
    • Other reason

• Behavior changed:

  • No.
  • Yes.

• Does this need documentation?

  • No.
  • Yes.

Check List (For Reviewer who merge this PR)

• Confirm the release note
• Confirm test cases
• Confirm document
• Add branch pick label

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[starocean999]

run buildall