@directus/api/dist/database/helpers/capabilities/dialects/mysql.js

Directus is a real-time API and App dashboard for managing SQL database content

import { CapabilitiesHelper } from '../types.js';
export class CapabilitiesHelperMySQL extends CapabilitiesHelper {
    supportsColumnPositionInGroupBy() {
        // Supported in MySQL https://dev.mysql.com/doc/refman/8.4/en/select.html#id756773
        // > Columns selected for output can be referred to in ORDER BY and GROUP BY clauses using column names,
        //   column aliases, or column positions. Column positions are integers and begin with 1:
        return true;
    }
}