planner: skip virtual generated column in analyze push down

[lonng]

Signed-off-by: Lonng heng@lonng.org

What problem does this PR solve?

The virtual column will not store any data in TiKV, so it should be ignored in analyze.

What is changed and how it works?

Filter virtual generated column when push down analyze.

Check List

Tests

• Unit test

• Integration test

• Manually test

• Before fix:

   mysql> CREATE TABLE contacts2 (     id INT AUTO_INCREMENT PRIMARY KEY,     first_name VARCHAR(50) NOT NULL,     last_name VARCHAR(50) NOT NULL,     fullname varchar(101) GENERATED ALWAYS AS (CONCAT(first_name,' ',last_name)) virtual not null,     email VARCHAR(100) NOT NULL );
   Query OK, 0 rows affected (0.11 sec)
   
   mysql> INSERT INTO contacts2(first_name,last_name, email) VALUES('john','doe','john.doe@mysqltutorial.org');
   Query OK, 1 row affected (0.02 sec)
   
   mysql> analyze table contacts2;
   ERROR 1105 (HY000): other error: [src/coprocessor/dag/executor/mod.rs:161]: column 4 of 1 is missing
  

• After fix:

   mysql> CREATE TABLE contacts2 (     id INT AUTO_INCREMENT PRIMARY KEY,     first_name VARCHAR(50) NOT NULL,     last_name VARCHAR(50) NOT NULL,     fullname varchar(101) GENERATED ALWAYS AS (CONCAT(first_name,' ',last_name)) virtual not null,     email VARCHAR(100) NOT NULL );
   Query OK, 0 rows affected (0.11 sec)
   
   mysql> INSERT INTO contacts2(first_name,last_name, email) VALUES('john','doe','john.doe@mysqltutorial.org');
   Query OK, 1 row affected (0.02 sec)
   
   mysql> analyze table contacts2;
   Query OK, 0 rows affected (0.08 sec)
  

Related changes

• Need to cherry-pick to the release branch

[alivxxx]

Add test?

[codecov]

Codecov Report

Merging #10623 into master will decrease coverage by 0.0264%.
The diff coverage is 0%.

@@               Coverage Diff                @@
##             master     #10623        +/-   ##
================================================
- Coverage   77.7226%   77.6962%   -0.0265%     
================================================
  Files           413        413                
  Lines         87515      87465        -50     
================================================
- Hits          68019      67957        -62     
- Misses        14351      14361        +10     
- Partials       5145       5147         +2

[codecov]

Codecov Report

Merging #10623 into master will increase coverage by 0.0255%.
The diff coverage is 0%.

@@               Coverage Diff                @@
##             master     #10623        +/-   ##
================================================
+ Coverage   77.7126%   77.7381%   +0.0254%     
================================================
  Files           413        413                
  Lines         87507      87468        -39     
================================================
- Hits          68004      67996         -8     
+ Misses        14355      14332        -23     
+ Partials       5148       5140         -8

[lonng]

/run-all-tests tidb-test=pr/827

[lonng]

/run-integration-common-test tidb-test=pr/827

[lonng]

/run-integration-common-test tidb-test=pr/827

[eurekaka]

LGTM

[alivxxx]

LGTM