7 calls to drupal_get_schema_versions()

drupal_install_system in drupal/includes/install.inc
Installs the system module.
ModuleUpdater::getSchemaUpdates in drupal/modules/system/system.updater.inc
Return available database schema updates one a new version is installed.
module_enable in drupal/includes/module.inc
Enables or installs a given list of modules.
system_install in drupal/modules/system/system.install
Implements hook_install().
system_requirements in drupal/modules/system/system.install
Implements hook_requirements().
update_get_update_function_list in drupal/includes/update.inc
Returns an organized list of update functions for a set of modules.
update_get_update_list in drupal/includes/update.inc
Returns a list of all the pending database updates.