Schema::createPrimaryKeySql

protected Schema::createPrimaryKeySql($fields)

Create the SQL expression for primary keys.

Postgresql does not support key length. It does support fillfactor, but that requires a separate database lookup for each column in the key. The key length defined in the schema is ignored.

File

core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php, line 427

Class

Schema

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

Namespace

Drupal\Core\Database\Driver\pgsql

Code

protected function createPrimaryKeySql($fields) {
  $return = array();
  foreach ($fields as $field) {
    if (is_array($field)) {
      $return[] = '"' . $field[0] . '"';
    }
    else {
      $return[] = '"' . $field . '"';
    }
  }
  return implode(', ', $return);
}