planner: enrich diagnosis info for plan-cache

[qw4990]

What problem does this PR solve?

Issue Number: close #39147

Problem Summary: planner: enrich diagnosis info for plan-cache

What is changed and how it works?

Output why this query or plan cannot use plan-cache.

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

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

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• Reminiscent
• fzzf678

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[qw4990]

/merge

[ti-chi-bot]

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

Commit hash: 9f867cc

[qw4990]

/merge

[ti-chi-bot]

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

Commit hash: b11f2dd

[qw4990]

/run-unit-test

[qw4990]

/merge

[qw4990]

/run-mysql-test

[fzzf678]

/run-mysql-test

[qw4990]

/run-mysql-test

[fzzf678]

/run-build

[fzzf678]

/run-unit-test

[winoros]

@ti-chi-bot

[sre-bot]

TiDB MergeCI notify

🔴 Bad News! New failing [2] after this pr merged.
These new failed integration tests seem to be caused by the current PR, please try to fix these new failed integration tests, thanks!

CI Name	Result	Duration	Compare with Parent commit
idc-jenkins-ci-tidb/integration-ddl-test	🟥 failed 2, success 4, total 6	5 min 42 sec	New failing
idc-jenkins-ci-tidb/sqllogic-test-2	🟥 failed 1, success 27, total 28	5 min 34 sec	New failing
idc-jenkins-ci/integration-cdc-test	🔴 failed 1, success 39, total 40	24 min	Existing failure
idc-jenkins-ci-tidb/common-test	🔴 failed 1, success 10, total 11	10 min	Existing failure
idc-jenkins-ci-tidb/integration-common-test	🟢 all 17 tests passed	20 min	Existing passed
idc-jenkins-ci-tidb/tics-test	🟢 all 1 tests passed	6 min 3 sec	Existing passed
idc-jenkins-ci-tidb/sqllogic-test-1	🟢 all 26 tests passed	5 min 22 sec	Existing passed
idc-jenkins-ci-tidb/mybatis-test	🟢 all 1 tests passed	3 min 42 sec	Existing passed
idc-jenkins-ci-tidb/integration-compatibility-test	🟢 all 1 tests passed	3 min 12 sec	Existing passed
idc-jenkins-ci-tidb/plugin-test	🟢 build success, plugin test success	4min	Existing passed