text: SELECT create_hypertable('history', 'clock', chunk_time_interval => 86400, migrate_data => true);
  SELECT create_hypertable('history_uint', 'clock', chunk_time_interval => 86400, migrate_data => true);
  SELECT create_hypertable('history_log', 'clock', chunk_time_interval => 86400, migrate_data => true);
  SELECT create_hypertable('history_text', 'clock', chunk_time_interval => 86400, migrate_data => true);
  SELECT create_hypertable('history_str', 'clock', chunk_time_interval => 86400, migrate_data => true);
  SELECT create_hypertable('trends', 'clock', chunk_time_interval => 86400, migrate_data => true);
  SELECT create_hypertable('trends_uint', 'clock', chunk_time_interval => 86400, migrate_data => true);
  UPDATE config SET db_extension='timescaledb',hk_history_global=1,hk_trends_global=1;
  