public function Schema::dropUniqueKey

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

Drop a unique key.

Parameters

$table: The table to be altered.

$name: The name of the key.

Return value

TRUE if the key was successfully dropped, FALSE if there was no key by that name to begin with.

Overrides Schema::dropUniqueKey

File

core/lib/Drupal/Core/Database/Driver/mysql/Schema.php, line 483

Class

Schema

MySQL implementation of \Drupal\Core\Database\Schema.

Namespace

Drupal\Core\Database\Driver\mysql

Code

public function dropUniqueKey($table, $name) {
  if (!$this->indexExists($table, $name)) {
    return FALSE;
  }

  $this->connection->query('ALTER TABLE {' . $table . '} DROP KEY `' . $name . '`');
  return TRUE;
}