Question

Change sql_mode

Posted March 18, 2020 107 views
MySQL

Hello,

we provisioned a MySQL instance and intend to connect a third party application to it.
Namely, the Directus Headless CMS.

During debugging on why directus is not compatible with the managed MySQL instance, we found that the sql_mode is set to something that Directus can not work with.

To be specific:
The managed MySQL instance on DigitalOcean has the sql_mode set to

REAL_AS_FLOAT,PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,ONLY_FULL_GROUP_BY,ANSI,STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION

Our local testing database (which Directus works with without problems) it is set to

ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION

We know that the ANSI_QUOTES option is conflicting, since Directus produces SQL statements that use double quotes for strings, which is what this option prevents.
We are not sure if other options cause any problems.

As per documentation it is not possible for us to get root access, which we would need to change the sql_mode setting.

Is it possible for DigitalOcean staff to change this setting for us?

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1 answer

As it turns out it’s not possible to update the sql_mode via SQL / root access, but there is an option to change it via the settings menu UI:

https://www.digitalocean.com/docs/databases/mysql/how-to/set-sql-mode/

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