bigint_extent_transfn bigint_union_transfn date_extent_transfn date_union_transfn float_extent_transfn float_union_transfn int_extent_transfn int_union_transfn set_extent_transfn set_union_finalfn set_union_transfn span_extent_transfn span_union_transfn spanset_extent_transfn spanset_union_finalfn spanset_union_transfn text_union_transfn timestamptz_extent_transfn timestamptz_union_transfn

date_extent_transfn() Span * date_extent_transfn ( Span *  state, DateADT  d  ) Transition function for span extent aggregate of dates. Parameters [in,out] state Current aggregate state [in] d Value to aggregate