I'm using rollup.js to build an app which depending Knex.js.
Knex support mysql, mssql, pgsql...
So there is code like require('mysql'), require('tedious'), require('pg') in Knex.js.
Finally, require('mysql'), require('tedious'), require('pg') show up in my output file.
But I have only used mysql.
reproduction: https://github.com/daGaiGuanYu/temp/tree/knex-rollup