Problems with sqlsrv DB driver and CI 3

Something changed in the logic for either _track_aliases() or protect_identifiers() (or both) which made it nearly impossible to use queries in the from clause in CI3. In the end, you'll probably have to convert it to use $this->db->query() instead of query builder.

The $_protect_identifiers property is protected in CI3, so I'm not sure what the "supported" method is for disabling this feature.

Bonfire

Practical CodeIgniter 3
CodeIgniter Testing Guide