protected Schema::createPrimaryKeySql($fields)

public Schema::queryTableInformation($table)

protected Schema::_createKeys($table, $new_keys)

protected Connection::doEscape($string)

Schema::addUniqueKey($table, $name, $fields)

public Schema::dropUniqueKey($table, $name)

public Connection::releaseSavepoint($savepoint_name = 'mimic

public Delete::execute() Executes

public Schema::indexExists($table, $name)

The name by which to obtain a lock for retrieve the next insert id. File core/lib/Drupal/Core/Databa