[EMAIL PROTECTED] writes: > PostgreSQL has a much better query optimizer than SQLite. > (You can do that when you have a multi-megabyte memory footprint > budget versus 250KiB for SQLite.) In your particular case, > I would guess you could get SQLite to run as fast or faster > than PostgreSQL by hand-optimizing your admittedly complex > queries.
In this light, I had a single query that took about 24 *hours* to complete in sqlite (2.8.x). I hand optimized the query by breaking it into multiple (14 I think) separate sequential queries which generate temporary tables for the next query to work with, and building some indexes on the temporary tables. The 24 hour query was reduced to a few *seconds*. Query optimization is critical for large queries in sqlite, and sqlite can be made VERY fast if you take the time to optimize the queries that are taking a long time to execute. Derrell
