aggstate_set_extra DatumGetSkipListP ensure_same_skiplist_subtype PG_GETARG_SKIPLIST_P PG_RETURN_SKIPLIST_P skiplist_headval skiplist_make skiplist_splice skiplist_temporal_values skiplist_values SkipListPGetDatum

skiplist_splice() void skiplist_splice ( SkipList *  list, void **  values, int  count, datum_func2  func, bool  crossings  ) Splice the skiplist with the array of values using the aggregation function. Note The complexity of this function is average: O(count*log(n)) (unless I'm mistaken) worst case: O(n + count*log(n)) (when period spans the whole list so everything has to be deleted) Parameters [in,out] list Skiplist [in] values Array of values [in] count Number of elements in the array [in] func Function used when aggregating temporal values, may be NULL for the merge aggregate function [in] crossings True if turning points are added in the segments when aggregating temporal value