sessionctx: add tidb_analyze_column_options global variable

[Rustin170506]

What problem does this PR solve?

Issue Number: ref #53567

Problem Summary:
We need to introduce a new global variable to control which columns we need to analyze during the auto-analyze and manual analyze.

Users can set this variable to ALL or PREDICATE to analyze all columns or only predicate columns. The default value will be PREDICATE after this feature is fully implemented.

What changed and how does it work?

• Added a new global variable called tidb_analyze_column_options.

Check List

Tests

• Unit test
• Integration test
• Manual test
• 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]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 56.4010%. Comparing base (bec113a) to head (f521574).
Report is 27 commits behind head on master.

Additional details and impacted files

@@                Coverage Diff                @@
##             master     #54200         +/-   ##
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- Coverage   72.8470%   56.4010%   -16.4461%     
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  Files          1520       1641        +121     
  Lines        435106     608395     +173289     
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+ Hits         316962     343141      +26179     
- Misses        98555     241903     +143348     
- Partials      19589      23351       +3762     

Flag	Coverage Δ
integration	36.7078% <55.5555%> (?)
unit	71.7881% <100.0000%> (-0.0498%)	⬇️

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Components	Coverage Δ
dumpling	52.9656% <ø> (ø)
parser	∅ <ø> (∅)
br	52.2782% <ø> (+6.1361%)	⬆️

[Rustin170506]

Tested locally:

1. Start the cluster with the patch: tiup playground v8.1.0 --db.binpath /Volumes/t7/code/tidb/bin/tide-server
2. Check the tidb_analyze_default_column_choice:

mysql> select @@tidb_analyze_default_column_choice;
+--------------------------------------+
| @@tidb_analyze_default_column_choice |
+--------------------------------------+
| ALL                                  |
+--------------------------------------+
1 row in set (0.01 sec)

3. Set the tidb_analyze_default_column_choice with lower case value:

mysql> set global tidb_analyze_default_column_choice = 'predicate'
    -> ;
Query OK, 0 rows affected (0.02 sec)

mysql> select @@tidb_analyze_default_column_choice;
+--------------------------------------+
| @@tidb_analyze_default_column_choice |
+--------------------------------------+
| PREDICATE                            |
+--------------------------------------+
1 row in set (0.00 sec)

4. Set the tidb_analyze_default_column_choice with upper case value:

mysql> set global tidb_analyze_default_column_choice = 'ALL';
Query OK, 0 rows affected (0.01 sec)

mysql> select @@tidb_analyze_default_column_choice;
+--------------------------------------+
| @@tidb_analyze_default_column_choice |
+--------------------------------------+
| ALL                                  |
+--------------------------------------+
1 row in set (0.00 sec)

5. Try unknown value:

mysql> set global tidb_analyze_default_column_choice = 'unkown';
ERROR 1105 (HY000): invalid value for tidb_analyze_default_column_choice, it should be either 'ALL' or 'PREDICATE'

[Rustin170506]

/retest

[Rustin170506]

🔢 Self-check (PR reviewed by myself and ready for feedback.)

[elsa0520]

LGTM

[Rustin170506]

/retest

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-06-26 02:12:55.644185809 +0000 UTC m=+772102.129674638: ☑️ agreed by elsa0520.
• 2024-06-26 07:46:06.240634898 +0000 UTC m=+792092.726123728: ☑️ agreed by time-and-fate.

[Rustin170506]

🔢 Self-check (PR reviewed by myself and ready for feedback.)

[easonn7]

/approve

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: easonn7, elsa0520, time-and-fate

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Needs approval from an approver in each of these files:

• OWNERS [elsa0520,time-and-fate]
• pkg/sessionctx/variable/OWNERS [easonn7]

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[Rustin170506]

/retest