What are you trying to achieve?

I am using the Db module with a mariadb database.

What do you get instead?

I receive an error stating Unknown column 'PRIMARY'
The issue stems from the Mysql driver building the following query
SHOW KEYS FROM my_table where key_name = "PRIMARY"
Maria db does not treat double quotes as string literals.
By changing the query to
SHOW KEYS FROM my_table where key_name = 'PRIMARY'
using single quotes the issues is resolved. This should not affect mysql db users as single quotes are string literals

Provide console output if related. Use -vvv mode for more details.

# paste output here

Provide test source code if related

// paste test

Details

• Codeception version: 3.1.2
• PHP Version: 7.0
• Operating System: Unbuntu
• Installation type: Composer
• List of installed packages (composer show)
• Suite configuration:

# paste suite config here