Nice work from you postgrespro.ru guys! Especially the RUM index which demonstrates the power of 9.6 to let third party SW create access methods as extension: https://github.com/postgrespro/rum
1. I don't understand the benchmarks on slide 25 "20 mln descriptions" (and the one before "6.7 mln classifieds"): What does "Queries in 8 h 9.2 +patch (9.6 rum)" mean?
2. What does R-U-M mean? (can't mean "Range Usage Metadata" which was finally coined range index BRIN)?