On Tue, Jun 1, 2010 at 2:37 PM, Simon Slavin <slav...@bigfraud.org> wrote: > On 1 Jun 2010, at 7:11pm, Israel Lins Albuquerque wrote: >> About that future release functionality. Will be possible to know whats >> temporary index are created? >> Using that information will be easy to know what indexes we need create to >> increase perfomance, >> don't giving chance to sqlite create that indexes! > > You can do something pretty good with EXPLAIN QUERY PLAN: > > http://www.sqlite.org/lang_explain.html > > I wonder how that could be enhanced to refer to any temporary index created. > > I understand what Israel wants, I think: CREATE your table with no indices, > then ask SQLite what index would be ideal for a SELECT or UPDATE statement.
Well, really, what you want is "SQLite, for this table, I want to these SELECT and UPDATE statements in this ratio, what indices would be ideal?" -scott [I was always annoyed by someone telling me that they needed some index added to make their seldom-run query incrementally faster without having figured out the downside hit to the updates which generated the data they were querying.] _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
