09.03.2015 17:06, liviuslivius wrote: > > what is the difference between > Index "ROZLICZENIE_FK1" Range Scan (lower bound: 1/1, upper bound: 1/1)
When you see "lower/upper bound: N/M", this is a "less/greater/between" scan. Each boundary condition may use N of M segments. > Index "RODZAJ_DZIAL_FK" Range Scan (partial match: 1/2) When you see "partial match: N/M", this means an equality scan (using N of M segments). Yet another case is "full match" which also means an equality scan but the one uses all index segments. Dmitry ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
