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10 descendants and 10 ancestors of 6b1651d711eae6e7c65a191f02ca2439160bcd677099712289e76a0f8422fd37
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2017-10-03
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| 03:24 | Simplification to the logic that computes column type names. Update: Does not work in all configurations. (Closed-Leaf check-in: f10ece96 user: drh tags: does-not-work) | |
| 03:01 | Do not compute column and row size estimates for the transient Table objects associated with the result set of a SELECT statement, since those estimates are never used for anything constructive. (check-in: e4342fd4 user: drh tags: trunk) | |
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2017-10-02
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| 23:50 | Mark a single branch within sqlite3SelectExpand() as an optimization. (check-in: 3a4ffb21 user: drh tags: trunk) | |
| 23:30 | Simplification to sqlite3SelectPrep() for improved testability. (check-in: 5bf2ccb9 user: drh tags: trunk) | |
| 21:29 | Add the OK_IF_ALWAYS_TRUE() and OK_IF_ALWAYS_FALSE() macros for marking conditionals that improve performance but do not change the outcome. (check-in: 6035c9b2 user: drh tags: trunk) | |
| 13:20 | Avoid using lookaside memory for persistent virtual table structures. (check-in: d815f255 user: drh tags: trunk) | |
| 02:52 | The query planner now always prefers to implement a FROM-clause subquery using a co-routine rather than flattening the subquery into the outer query. (check-in: c9104b59 user: drh tags: trunk) | |
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2017-09-30
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| 11:47 | More details in the header comment of pushDownWhereTerms(). No changes to code. (Closed-Leaf check-in: 92848623 user: drh tags: prefer-coroutine-sort-subquery) | |
| 10:50 | Make sure the SQLITE_Stat34 optimization switch is always 0x800, a value which is hard-coded in the TH3 test suite. (check-in: 6aed4ea3 user: drh tags: prefer-coroutine-sort-subquery) | |
| 01:25 | Fix unreachable conditionals and revise a testcase that was made obsolete by the changes on this branch. (check-in: 71f0adf7 user: drh tags: prefer-coroutine-sort-subquery) | |
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2017-09-29
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| 22:13 | Always render a subquery that is not part of a join as a co-routine. (check-in: 6b1651d7 user: drh tags: prefer-coroutine-sort-subquery) | |
| 16:08 | Merge the query flattener comment improvements from trunk. (check-in: f62cd4d9 user: drh tags: prefer-coroutine-sort-subquery) | |
| 16:07 | Clean up the comments on the query flattener to more clearly and accurately express the conditions under which the flattener is able to run. (check-in: 0840f9f8 user: drh tags: trunk) | |
| 14:31 | Merge changes from trunk. (check-in: 06f432fb user: drh tags: prefer-coroutine-sort-subquery) | |
| 12:44 | Make sure the 6th parameter to the authorizer callback for view subqueries has the correct view name. (check-in: 2a45bbc9 user: drh tags: trunk) | |
| 12:12 | Better names for subqueries in EXPLAIN comments. (check-in: 04ef40a8 user: drh tags: trunk) | |
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2017-09-28
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| 20:06 | Do not flatten subqueries that contain an ORDER BY or GROUP BY clause and can be implemented using a co-routine. (check-in: 042d655d user: drh tags: prefer-coroutine-sort-subquery) | |
| 17:29 | Remove the (undocumented) query-planner control that prevents a "SELECT ALL" subquery in FROM clause from being implemented as a co-routine. This control was added by [a29e117d7ec], where it was called a "stop-gap". (check-in: ff2f5a31 user: drh tags: trunk) | |
| 16:56 | Fix over-length source code lines in select.c. No logic changes. (check-in: fd3267ef user: drh tags: trunk) | |
| 13:47 | Fix an issue introduced by check-in [4cd2a9672c59] (2017-03-03) that could allow a negative value in the 3rd parameter to memmove() when defragmentPage() is called on a btree page with a corrupted freeblock list. The corruption is now detected early and results in an SQLITE_CORRUPT return before the memmove() is reached. (check-in: 5b9ae693 user: drh tags: trunk) | |
| 01:58 | Add new routines to simplify dealing with collating sequences in expressions: sqlite3ExprNNCollSeq() and sqlite3ExprCollSeqMatch(). (check-in: 490e488e user: drh tags: trunk) | |