Name
sum_rank — combine full-text rank vector elements into a single score
Synopsis
double precision sum_rank(
|
in rank_vector any); |
Description
sum_rank computes a combined score for full-text
search rank aggregation. It expects a 3-element vector of
(rank, total, hit-count) and returns a single double
precision score. Used by Virtuoso's free-text search machinery and not
normally called directly by applications.
Parameters
rank_vector
A 3-element vector (rank, total, hit-count) as
produced by free-text ranking.
Return Types
A double precision combined rank score.