planner: fix hint doesn't work after inlining CTE

[hawkingrei]

What problem does this PR solve?

Issue Number: close #53454

Problem Summary:

What changed and how does it work?

Check List

Tests

• [x] 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

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 56.0625%. Comparing base (2ea3542) to head (9b20e37). Report is 359 commits behind head on master.

Additional details and impacted files

@@                Coverage Diff                @@
##             master     #55653         +/-   ##
=================================================
- Coverage   72.8732%   56.0625%   -16.8107%     
=================================================
  Files          1605       1730        +125     
  Lines        446555     622025     +175470     
=================================================
+ Hits         325419     348723      +23304     
- Misses       101082     249625     +148543     
- Partials      20054      23677       +3623     

Flag	Coverage Δ
integration	37.2583% <100.0000%> (?)
unit	72.0072% <100.0000%> (+0.0171%)	:arrow_up:

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Components	Coverage Δ
dumpling	52.9567% <ø> (ø)
parser	∅ <ø> (∅)
br	52.8336% <ø> (+7.0793%)	:arrow_up:

[hawkingrei]

/retest

[ti-chi-bot[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

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[ti-chi-bot[bot]]

[LGTM Timeline notifier]

Timeline:

• 2024-09-11 05:48:48.615366 +0000 UTC m=+421798.355789940: :ballot_box_with_check: agreed by elsa0520.

[winoros]

mysql> explain with cte as (select a, count(b) from t2 group by a) select /*+ inl_join(`t2`) */ * from t1, cte t2 where t1.a=t2.a;
+------------------------------------+----------+-----------+---------------+---------------------------------------------------------------------------------------------+
| id                                 | estRows  | task      | access object | operator info                                                                               |
+------------------------------------+----------+-----------+---------------+---------------------------------------------------------------------------------------------+
| Projection_13                      | 9990.00  | root      |               | test.t1.a, test.t1.b, test.t2.a, Column#13                                                  |
| └─HashJoin_46                      | 9990.00  | root      |               | inner join, equal:[eq(test.t1.a, test.t2.a)]                                                |
|   ├─HashAgg_71(Build)              | 7992.00  | root      |               | group by:test.t2.a, funcs:count(Column#29)->Column#13, funcs:firstrow(test.t2.a)->test.t2.a |
|   │ └─TableReader_72               | 7992.00  | root      |               | data:HashAgg_64                                                                             |
|   │   └─HashAgg_64                 | 7992.00  | cop[tikv] |               | group by:test.t2.a, funcs:count(test.t2.b)->Column#29                                       |
|   │     └─Selection_70             | 9990.00  | cop[tikv] |               | not(isnull(test.t2.a))                                                                      |
|   │       └─TableFullScan_69       | 10000.00 | cop[tikv] | table:t2      | keep order:false, stats:pseudo                                                              |
|   └─TableReader_60(Probe)          | 9990.00  | root      |               | data:Selection_59                                                                           |
|     └─Selection_59                 | 9990.00  | cop[tikv] |               | not(isnull(test.t1.a))                                                                      |
|       └─TableFullScan_58           | 10000.00 | cop[tikv] | table:t1      | keep order:false, stats:pseudo                                                              |
+------------------------------------+----------+-----------+---------------+---------------------------------------------------------------------------------------------+
10 rows in set, 1 warning (0.00 sec)

Alias case still not work as expected.

[hawkingrei]

I also find it cannot work in MySQL.