2017-04-11 14:17 GMT+05:00 Alexander Korotkov <a.korot...@postgrespro.ru>: > FYI, I've implemented this algorithm for pgsphere. See following branch. > https://github.com/akorotkov/pgsphere/tree/experimental > It's implemented as crossmatch() function which takes as arguments names of > two indexes over spoint and maximum distance (it checks not overlapping but > proximity of points). This function returns setof pairs of TIDs. > > Later, Dmitry Ivanov made it a custom scan node. > https://github.com/akorotkov/pgsphere/tree/crossmatch_cnode > > You also can find some experimental evaluation here: > http://www.adass2016.inaf.it/images/presentations/10_Korotkov.pdf > > Feel free to experiment with this code and/or ask any question.
Wow, that's cool! Thanks! That code actually answers a lot of questions. I'll try to generalize that for && operator Best regards, Andrey Borodin. -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
