elem_adjacent_range elem_func_range elem_left_range elem_overleft_range elem_overleft_range_internal elem_overright_range elem_overright_range_internal elem_right_range floatrange_set_precision intrange_canonical lower_datum lower_inc range_adjacent_elem range_adjacent_elem_internal range_bounds range_copy range_extent_combinefn range_extent_transfn range_func_elem range_func_elem1 range_left_elem range_left_elem_internal range_make range_overleft_elem range_overleft_elem_internal range_overright_elem range_overright_elem_internal range_right_elem range_right_elem_internal range_union_internal rangearr_normalize upper_datum upper_inc

range_extent_combinefn() PGDLLEXPORT Datum range_extent_combinefn ( PG_FUNCTION_ARGS  ) Combine function for temporal extent aggregation.