Add a standard for "All identifiers should be quoted in database queries"

converting to new issue template.

Looking at @drunken monkey's comment in #3, can we close this as fixed?

I don't think so because the reference that was added is for 'SQL Conventions' and a convention is not a standard.

it's a sub page of https://www.drupal.org/docs/develop/standards/sql → , wich is sql coding standards, but that is only an overview page. Should the coding conventions page actually be coding standards?

Skimming through those pages, they are about good practice and convention. If there are parts that are definite standards then that should be pulled out to a separate page, yes. Probably worth a discussion in a meeting for this.