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|17:20||In order to optimize out the ORDER BY clause, outer loops must generate values for ORDER BY terms that are unique or else the inner loops must generate no more than a single row. Fix for ticket [a179fe7465]. check-in: 2936f746 user: drh tags: trunk|
|16:42||Restore additional ORDER BY optimizations that where broken by the recent ORDER BY fix. Closed-Leaf check-in: c77ee6e2 user: drh tags: orderby-fix|
|16:05||Improved optimization of ORDER BY. check-in: 97e5c70f user: drh tags: orderby-fix|
|15:04||A fix and test-case for the ORDER BY problem identified by ticket [a179fe7465]. This change causes sorting to occur in some cases where it is not strictly necessary. Further work is needed to avoid those extra sorts. check-in: 488089e6 user: drh tags: orderby-fix|
|03:15||Candidate fix for ticket [6bfb98dfc0c]: Make sure invalid cursors drop all references to database pages prior to doing any insert or update. check-in: 322a5f08 user: drh tags: trunk|