Issue #3262341 by Liam Morland, mcdruid, poker10: Database test table...

    return strtr($hash, array('+' => '_', '/' => '_', '=' => ''));

  }

  /**

   * Build a condition to match a table name against a standard information_schema.

   *

   * In PostgreSQL "unquoted names are always folded to lower case." The pgsql

   * driver does not quote table names, so they are therefore always lowercase.

   *

   * @see https://www.postgresql.org/docs/14/sql-syntax-lexical.html

   */

  protected function buildTableNameCondition($table_name, $operator = '=', $add_prefix = TRUE) {

    return parent::buildTableNameCondition(strtolower($table_name), $operator, $add_prefix);

  }

}