Hello! On Friday 09 April 2010 00:11:56 Jay A. Kreibich wrote: > Virtual Tables are completely abstract to the query planner. The > only way to do any type of indexed or high efficiency lookup is if > the virtual table allows that to happen. Otherwise, there is > nothing the query planner can do, except perform a full table scan > -- even on the ROWID column. The issue isn't with the SQLite core, > it isn't with the query planner-- it is with the virtual table module > you're using. Most modules are designed to be used in specific ways. > If you're using it in some other way, it isn't a surprise it doesn't > work very well.
May be is needed to show this more informatively. The record "TABLE role_fts VIRTUAL TABLE INDEX 0:" is not useful I think. And is not helpful than planner using full table scan without any alert. For FTS3 the workaround is in using _content table insted of virtual table but now we must search for bad-planned queries manually. So vurtual tables are similar to regular tables but we have a lot of hidden planner problems. Best regards, Alexey Pechnikov. http://pechnikov.tel/ _______________________________________________ sqlite-users mailing list [email protected] http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
