_PG_init ensure_common_dimension ensure_increasing_timestamps ensure_linear_interpolation ensure_non_empty_array ensure_positive_datum ensure_same_base_type ensure_same_interpolation ensure_seq_subtypes ensure_tinstantarr ensure_valid_duration ensure_valid_tempsubtype ensure_valid_tempsubtype_all ensure_valid_tinstantarr ensure_valid_tsequencearr intersection_temporal_temporal mobilitydb_full_version mobilitydb_version PG_MODULE_MAGIC temporal_always_eq temporal_always_eq_internal temporal_always_ge temporal_always_gt temporal_always_le temporal_always_le_internal temporal_always_lt temporal_always_lt_internal temporal_always_ne temporal_append_tinstant temporal_at_max temporal_at_min temporal_at_period temporal_at_period_internal temporal_at_periodset temporal_at_timestamp temporal_at_timestampset temporal_at_value temporal_at_values temporal_bbox temporal_bbox_ev_al_eq temporal_bbox_ev_al_lt_le temporal_bbox_ptr temporal_bbox_restrict_value temporal_bbox_restrict_values temporal_cmp temporal_cmp_internal temporal_convert_same_type temporal_copy temporal_duration temporal_end_instant temporal_end_instant_internal temporal_end_sequence temporal_end_timestamp temporal_end_value temporal_enforce_typmod temporal_eq temporal_eq_internal temporal_ev_al_comp temporal_ever_eq temporal_ever_eq_internal temporal_ever_ge temporal_ever_gt temporal_ever_le temporal_ever_le_internal temporal_ever_lt temporal_ever_lt_internal temporal_ever_ne temporal_from_base temporal_ge temporal_get_time temporal_get_time_internal temporal_get_values temporal_gt temporal_hash temporal_hash_internal temporal_in temporal_instant_n temporal_instants temporal_instants_internal temporal_interpolation temporal_intersects_period temporal_intersects_periodset temporal_intersects_timestamp temporal_intersects_timestampset temporal_le temporal_lt temporal_max_value temporal_mem_size temporal_merge temporal_merge_array temporal_merge_internal temporal_min_instant temporal_min_value temporal_min_value_internal temporal_minus_max temporal_minus_min temporal_minus_period temporal_minus_periodset temporal_minus_timestamp temporal_minus_timestampset temporal_minus_value temporal_minus_values temporal_ne temporal_ne_internal temporal_num_instants temporal_num_sequences temporal_num_timestamps temporal_out temporal_period temporal_read temporal_recv temporal_restrict_minmax temporal_restrict_minmax_internal temporal_restrict_period temporal_restrict_period_internal temporal_restrict_periodset temporal_restrict_periodset_internal temporal_restrict_timestamp temporal_restrict_timestamp_internal temporal_restrict_timestampset temporal_restrict_value temporal_restrict_value_internal temporal_restrict_values temporal_restrict_values_internal temporal_segments temporal_send temporal_sequence_n temporal_sequences temporal_shift temporal_shift_tscale temporal_shift_tscale_internal temporal_start_instant temporal_start_sequence temporal_start_timestamp temporal_start_timestamp_internal temporal_start_value temporal_subtype temporal_timespan temporal_timestamp_n temporal_timestamps temporal_timestamps_internal temporal_to_period temporal_to_string temporal_to_tinstant temporal_to_tinstantset temporal_to_tsequence temporal_to_tsequenceset temporal_tscale temporal_typmod_in temporal_typmod_out temporal_valid_typmod temporal_value_at_timestamp temporal_value_at_timestamp_inc temporal_values_array temporal_write temporalarr_convert_subtype tempsubtype_from_string tempsubtype_name tempsubtype_struct_array tempsubtypeName tfloat_get_ranges tfloat_ranges tfloat_to_range tfloat_to_tint tfloat_to_tint_internal tinstant_constructor tinstant_get_value tinstant_timestamp tinstantset_constructor tinstarr_inst_n tint_range tint_to_range tint_to_tfloat tint_to_tfloat_internal tlinearseq_constructor tnumber_at_range tnumber_at_ranges tnumber_at_tbox tnumber_at_tbox_internal tnumber_bbox_restrict_range tnumber_bbox_restrict_ranges tnumber_integral tnumber_minus_range tnumber_minus_ranges tnumber_minus_tbox tnumber_minus_tbox_internal tnumber_restrict_range tnumber_restrict_range_internal tnumber_restrict_ranges tnumber_restrict_ranges_internal tnumber_restrict_tbox tnumber_to_tbox tnumber_twavg tnumber_value_range tnumber_value_range_internal tsequence_constructor tsequenceset_constructor tstep_to_linear tstepseq_constructor

temporal_at_period() PGDLLEXPORT Datum temporal_at_period ( PG_FUNCTION_ARGS  ) Restricts the temporal value to the period.