function db_add_unique_key

Adds a unique key.

Parameters

$table: The table to be altered.

$name: The name of the key.

$fields: An array of field names.

Related topics

File

drupal/core/includes/database.inc, line 787
Core systems for the database layer.

Code

function db_add_unique_key($table, $name, $fields) {
  return Database::getConnection()
    ->schema()
    ->addUniqueKey($table, $name, $fields);
}