executor: raise error when text data is too long

[Jasonysli]

fix #32601

What problem does this PR solve?

#32601

Issue Number: 32601
datum.pkg was changed.

Problem Summary:

What is changed and how it works?

1.Under strict sql_mode, raise error when blob,text data is too long;
2.Under non-strict sql_mode, truncate the data when data is too long instead of error;

Check List

Tests

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

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

To be compatible with MySQL, TiDB raise an error, when data is too long for  tinytext, text, mediumtext, longtext. 
#32601

Issue Number: close #32601

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• bb7133
• tangenta

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[CLAassistant]

All committers have signed the CLA.

[sre-bot]

Please follow PR Title Format:

• pkg [, pkg2, pkg3]: what is changed

Or if the count of mainly changed packages are more than 3, use

• *: what is changed

After you have format title, you can leave a comment /run-check_title to recheck it

[sre-bot]

Code Coverage Details: https://codecov.io/github/pingcap/tidb/commit/5b5bcb7fab60cd32bca1bafd0245f27d2a8af502

[bb7133]

@Jasonysli the title should be formatted: https://ci.pingcap.net/blue/organizations/jenkins/tidb_check_title/detail/tidb_check_title/49256/pipeline

I've updated it for you, FYI.

[bb7133]

LGTM

[djshow832]

This is a compatibility breaker, so I added the label and updated the checklist.
Besides, I don't think it's necessary to cherry-pick it into previous versions, so I removed the labels.

[djshow832]

Please write a release note. Rest LGTM.

[tangenta]

/merge

[ti-chi-bot]

@tangenta: /merge in this pull request requires 2 approval(s).

In response to this:

/merge

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[hawkingrei]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: 0a726f6

[ti-chi-bot]

@Jasonysli: Your PR was out of date, I have automatically updated it for you.

At the same time I will also trigger all tests for you:

/run-all-tests

If the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.