Description:
One can only access remote MySQL databases read-only using "Connect directly" from LibreOffice Base.
(no insert, update nor delete are possible, only selects)

Steps to Reproduce:
1. Have a write access to a remote MySQL or MariaDB database
2. Connect "directly" to it using LibreOffice Base
3. Open any table

Actual Results:
Data is read only

Expected Results:
Data should be writable


Reproducible: Always


User Profile Reset: Yes



Additional Info:
Tested server version: 10.1.38-MariaDB-0+deb9u1 Debian 9.8

All works as expected using the "mysql" command-line client.

Version: 6.2.3.2
Build ID: aecc05fe267cc68dde00352a451aa867b3b546ac
CPU threads: 4; OS: Linux 4.9; UI render: default; VCL: gtk3; 
Locale: en-US (C); UI-Language: en-US
Calc: threaded

Other architectures and OS not tested yet.