03-Alter

Alter basic

1. Add Modify Drop Column

2. Add Modify Drop Rename Tag

3. Alter Comment

4. Alter add/modify/drop columns for all datatype

5. Alter modify varchar column to 390001 length

6. Alter add/modify tag/column with multi threads

path: cases/04-SuperTables/03-Alter/test_stable_alter_basic.py

Alter super/normal table

1. Alter super table add/modify/drop columns and set tags for all datatypes

2. Alter normal table add/modify/drop columns for all datatypes

path: cases/04-SuperTables/03-Alter/test_stable_alter_overall.py

Alter tags

1. Create a super table

2. Create a child table and insert data

3. Add a tag column and verify that it takes effect

4. Query using the newly added tag value

5. Repeat the same operations for Drop, Modify, and Rename Tag

6. Restart and verify that all modifications remain effective

path: cases/04-SuperTables/03-Alter/test_stable_alter_tag.py

Alter then write data

1. Create a table and insert data

2. Alter the table and insert data

3. Alter the table and insert expired data

4. Repeat the above operations

5. Restart and verify that all data remains intact

path: cases/04-SuperTables/03-Alter/test_stable_alter_write_data.py