How to check if enable/disable keys work?

Question

I have a table with an indexed varchar(256) column.

For faster bulk insert, I disabled keys, insert more than 10 million entries, and then re-enable the

Answer 1

As you guessed, InnoDB does not support DISABLE/ENABLE KEYS. The warning you got is:

code 1031 - Table storage engine for 'table_name' doesn't have this option

As you can see here. To see the warning yourself, run SHOW WARNINGS; after you run the ALTER.