Another option is to disable this functionality. If we allow access on the server only for reading Disable pmadb
$cfg['Servers'][$i]['userconfig'] =false; $cfg['Servers'][$i]['pmadb'] = false; $cfg['Servers'][$i]['bookmarktable'] = false; $cfg['Servers'][$i]['relation'] = false; $cfg['Servers'][$i]['table_info'] = false; $cfg['Servers'][$i]['table_coords'] = false; $cfg['Servers'][$i]['pdf_pages'] = false; $cfg['Servers'][$i]['column_info'] = false; $cfg['Servers'][$i]['history'] = false; $cfg['Servers'][$i]['table_uiprefs'] = false; $cfg['Servers'][$i]['tracking'] = false; $cfg['Servers'][$i]['designer_coords'] = false; $cfg['Servers'][$i]['userconfig'] = false; $cfg['Servers'][$i]['recent'] = false;