On Tue, May 3, 2016 at 3:21 PM, Nicolas Paris <nipari...@gmail.com> wrote:
> Hello, > > Documentation says : ( > http://www.postgresql.org/docs/9.5/static/textsearch-controls.html#TEXTSEARCH-RANKING > ) > "The built-in ranking functions are only examples. You can write your own > ranking functions and/or combine their results with additional factors to > fit your specific needs." > > The build-in seems not enough for my use case. How to write my own ranking > functions ? > > I would like to create something like ts_rank_cd( tsv, 'foo & bar', > my_new_normalization_integer) > > you can look on src/backend/utils/adt/tsrank.c and write your own function. google can help https://www.google.ru/search?q=how+to+write+c+function+postgresql > ---- > pg 9.5 >
