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7 check-ins using file src/vdbeaux.c version 9542e2fb
|17:52||Improved handling of OR terms in the WHERE clause with multi-column indexes. (check-in: b23ae131 user: drh tags: trunk)|
|17:45||Add testcase() macros to ensure good test coverage. (Closed-Leaf check-in: 5c132592 user: drh tags: or-opt)|
|16:57||Add the SQLITE_FCNTL_OVERWRITE file-control. Used by SQLite to indicate to the OS layer that the current transaction will overwrite the entire file. (check-in: 1da87fcd user: dan tags: trunk)|
|16:08||More test cases for the OR optimization. (check-in: 4997d8b8 user: drh tags: or-opt)|
|14:40||Prevent infinite recursion of in the query planner for some pathological test cases by disabling OR-clause processing upon first recursion. (check-in: 9fca05ea user: drh tags: or-opt)|
|13:33||Begin an effort to enhance the query planner to do a better job with OR terms in the WHERE clause. This change allows ANDs outside of the OR to be factored into the OR terms if that is helpful in finding better indices. (check-in: 876bd21a user: drh tags: or-opt)|
|12:59||Enhance the sqlite3_data_count() routine so that it can be used to determine if SQLITE_DONE has been seen on the prepared statement. (check-in: 9913996e user: drh tags: trunk)|