On Sat, Jan 29, 2011 at 12:38:37PM -0800, Marian Cascaval wrote: > Hi! > > Is LAST() function going to be supported? > > Or will the "SELECT ... FROM ... ORDER BY ... DESC LIMIT 1" workaround always > be > enough? > > My concern is if there might be any speed improvement if LAST() function were > to > be implemented, comparing to the workaround.
Use EXPLAIN QUERY PLAN... If there's enough indices to satisfy all the ORDER BY expressions then how could a "last()" function do any better? For that matter, if there aren't enough indices to satisfy all the ORDER BY expressions then how could a "last()" function do any better? What optimization could such a function implement that the query optimizer couldn't? Syntactically speaking, there's no additional information in "last()" -- it's just syntactic sugar. Nico -- _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
