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

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

public Connection::upsert($table, array $options = array())

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

public Delete::execute() Executes

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

public Connection::prepareQuery($query)

protected Connection::doEscape($string)

public Schema::queryFieldInformation($table, $field)

public Connection::releaseSavepoint($savepoint_name = 'mimic