bigint_extent_transfn bigintset_agg_transfn float_extent_transfn floatset_agg_transfn int_extent_transfn intset_agg_transfn period_tcount_transfn period_tunion_finalfn period_tunion_transfn periodset_tcount_transfn periodset_tunion_transfn set_extent_transfn span_extent_transfn spanbase_extent_transfn spanset_extent_transfn textset_agg_transfn timestamp_extent_transfn timestamp_tcount_transfn timestamp_tunion_finalfn timestamp_tunion_transfn tstzset_agg_transfn tstzset_tcount_transfn tstzset_tunion_transfn

period_tunion_transfn() SkipList * period_tunion_transfn ( SkipList *  state, const Span *  p  ) Generic transition function for aggregating period values. Parameters [in,out] state Skiplist containing the state [in] p Period