Club Drupal

 */

/**

 */

define('POSTGRESQL_NEXTID_LOCK', 1000);

    $connection_options['pdo'] += array(

      // Prepared statements are most effective for performance when queries

      // are recycled (used several times). However, if they are not re-used,

      // prepared queries are not re-used, it should be faster to emulate

      // the preparation than to actually ready statements for re-use. If in

      // doubt, reset to FALSE and measure performance.

  }

  /**

   *

   * PostgreSQL has built in sequences. We'll use these instead of inserting

   * and updating a sequences table.

   */

  public function nextId($existing = 0) {

    // because the prefix may change, for example, like it does in simpletests.

    $sequence_name = $this->makeSequenceName('sequences', 'value');

    }

    // PostgreSQL advisory locks are simply locks to be used by an

    // from altering the sequence while we are.

    $this->query("SELECT pg_advisory_lock(" . POSTGRESQL_NEXTID_LOCK . ")");

    // Reset the sequence to a higher value than the existing id.

    $this->query("ALTER SEQUENCE " . $sequence_name . " RESTART WITH " . ($existing + 1));

    $id = $this->query("SELECT nextval('" . $sequence_name . "')")->fetchField();

    $this->query("SELECT pg_advisory_unlock(" . POSTGRESQL_NEXTID_LOCK . ")");