Temporal_duration Temporal_end_instant Temporal_end_sequence Temporal_end_timestamptz Temporal_end_value Temporal_hash Temporal_instant_n Temporal_instants Temporal_interp Temporal_lower_inc Temporal_max_instant Temporal_max_value Temporal_mem_size Temporal_min_instant Temporal_min_value Temporal_num_instants Temporal_num_sequences Temporal_num_timestamps Temporal_segments Temporal_sequence_n Temporal_sequences Temporal_start_instant Temporal_start_sequence Temporal_start_timestamptz Temporal_start_value Temporal_stops Temporal_subtype Temporal_time Temporal_timestamps Temporal_timestamptz_n Temporal_upper_inc Temporal_value_at_timestamptz Temporal_value_n Temporal_valueset Tinstant_timestamptz Tinstant_value Tnumber_integral Tnumber_valuespans

Temporal_start_instant() Datum Temporal_start_instant ( PG_FUNCTION_ARGS  ) Return the start instant of a temporal value @sqlfn startInstant()