util/ranger: don't exclude start key for range from _ in like function | tidb-test=pr/2259 (#48984)

[ti-chi-bot]

This is an automated cherry-pick of #48984

What problem does this PR solve?

Issue Number: close #48983 ref #48181

Problem Summary:

Please see the comments.

What changed and how does it work?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No need to test

  • I checked and no code files have been changed.

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[time-and-fate]

/test check-dev2

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/test check-dev2

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[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: tangenta, winoros

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-12-06 05:20:53.784250284 +0000 UTC m=+1591282.449476479: ☑️ agreed by winoros.
• 2023-12-06 06:57:24.329757494 +0000 UTC m=+1597072.994983689: ☑️ agreed by tangenta.