This Day In History For 2025-06-01
1 Year Ago (more context)
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2024-06-01
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| 17:56 | Have fts5.xBestIndex return SQLITE_CONSTRAINT, instead of a large cost, when no usable plan can be found. (check-in: 7c47094537 user: dan tags: xbestindex-or-terms) | |
2 Years Ago (more context)
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2023-06-01
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| 20:38 | Generalize the LEFT JOIN strength reduction optimization so that it works for RIGHT and FULL JOIN as well. Rename it to the "OUTER JOIN strength reduction" optimization. (check-in: d747afda56 user: drh tags: trunk) | |
| 16:40 | If the filename argument to sqlite3_load_extension() is an empty string, then raise an error. It turns out that if dlopen() is called with an empty filename, it tries to load the current executable. And then if the caller requests some other function from the current executable, mischief can result. (check-in: d016885547 user: drh tags: trunk) | |
| 00:28 | Add an ALWAYS() on an unreachable branch. (check-in: a00928d480 user: drh tags: trunk) | |
| 00:01 | Fix the LEFT JOIN strength reduction for IN operators in the WHERE clause. Further simplifications and refinement of the algorithm. (check-in: 96c72dde79 user: drh tags: trunk) | |
3 Years Ago (more context)
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2022-06-01
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| 20:08 | New test cases for row values and RIGHT JOIN. (check-in: 5f0582b90f user: drh tags: trunk) | |
| 16:05 | Ensure that subqueries associated with row-values are invoked before being used when processing a RIGHT JOIN. Fix for the problem described by forum post 087de2d9ec87305b. (check-in: 5a9465dcc0 user: drh tags: trunk) | |
| 16:04 | fiddle: added another UI element to the list of those which are disabled during long-running activities. Added DB.close() binding to the Worker-based wasm binding. (check-in: 5933163ed1 user: stephan tags: trunk) | |
| 15:53 | Ensure that all necessary row-value subqueries are invoked while running the right-join post processing. (Closed-Leaf check-in: e4e71b4cd4 user: drh tags: row-value-right-join) | |
| 14:52 | Minor tweaks to, and consolidation of, the wasm-related build flags. (check-in: f0ad6b1b32 user: stephan tags: trunk) | |
| 14:32 | Fix a minor problem in the Tcl "incrblob" command. This does not affect the SQLite core. (check-in: e96feccc21 user: dan tags: trunk) | |
| 13:32 | Candidate fix for the problem with row-value WHERE clause constraints on a RIGHT JOIN. (check-in: fdd782a7bb user: drh tags: row-value-right-join) | |
| 13:32 | Only include the code for sqlite_offset() if compiled with -DSQLITE_ENABLE_OFFSET_SQL_FUNC. (check-in: 382cd7e10b user: drh tags: trunk) | |
| 13:01 | Fix a typo in a comment in a test case. No changes to code. (check-in: 570efa45dd user: drh tags: row-value-right-join) | |
| 11:58 | Additional enhancements to the test cases. (check-in: 55cfad74ca user: drh tags: row-value-right-join) | |
| 11:46 | Fix test cases in the previous check-in to make them postgres-compatible. (check-in: f223ba72b6 user: drh tags: row-value-right-join) | |
| 11:43 | Test case for forum post 087de2d9ec showing a problem when a row-value constraint is used with RIGHT JOIN. (check-in: d1e3e0d26e user: drh tags: row-value-right-join) | |
| 11:20 | The Worker-specific variants of the most significant DB-class JS bindings are implemented, most notably various uses of DB.exec(). (check-in: 371d6f7497 user: stephan tags: trunk) | |
| 11:05 | Move the sqlite_offset() function implementation to be an in-line function, thereby avoiding special case code and freeing up a bit in the FuncDef.flags field. (check-in: 1c9812c458 user: drh tags: trunk) | |
| 08:09 | Initial proof of concept code for a JavaScript binding which runs in the main window thread but acts on a db handle running in a Worker thread. Expanded the DB.exec() and DB() constructor to simplify certain use cases. (check-in: d9efe3e92d user: stephan tags: trunk) | |
| 00:00 | Initial bits for a JS API variant in which the client operates in the main thread and sqlite3 in a Worker. This is far from complete. (check-in: f6d6f96979 user: stephan tags: trunk) | |
4 Years Ago (more context)
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2021-06-01
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| 21:07 | Fix issue in 'mkopcodeh.tcl' tool that prevented its termination in rare circumstances. (check-in: a8d921136f user: mistachkin tags: trunk) | |
| 15:49 | • Edit [587a3044468a4070|587a304446]: Edit check-in comment. (artifact: 6b41e0452e user: drh) | |
| 15:37 | Fix a problem with running ALTER TABLE against schemas that contain compound SELECT statements with ORDER BY clauses containing one or more references to the second or subsequent component SELECT statements. This fixes the problem reported by forum post 31ceaa8461. (check-in: 587a304446 user: dan tags: trunk) | |
10 Years Ago (more context)
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2015-06-01
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| 20:28 | For FROM-clause subqueries that cannot be flattened, try to push WHERE clause terms of the outer query down into the subquery in order to help the subquery run faster and/or use less memory. (Closed-Leaf check-in: 297fae7551 user: drh tags: subquery-opt) | |
| 19:17 | Improve performance of the fts5 AND operator. (check-in: b43e9a5b7a user: dan tags: fts5) | |
| 18:13 | Corrections to comments in expr.c. No code changes. (check-in: f925389eaf user: drh tags: trunk) | |
| 17:39 | • Edit [e3fa8b936b31a487|e3fa8b936b]: Move to branch flattener-in-new-file. Mark "Closed". (artifact: 88db5a498c user: drh) | |
| 17:32 | Break out the query flattener into a separate source-code file. (Closed-Leaf check-in: e3fa8b936b user: drh tags: flattener-in-new-file) | |
| 11:10 | Typo fixes and additional background information in README.md. (check-in: 9b8e5823bc user: drh tags: trunk) | |
| 09:15 | Change fts5 expression processing to avoid linear scans of long doclists caused by phrases that match specific columns only. (check-in: ec69e09a55 user: dan tags: fts5) | |
15 Years Ago (more context)
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2010-06-01
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| 21:02 | The shared-memory used by WAL on linux now really is shared memory in /dev/shm. On other unix flavors, the file is in a temporary directory rather than in the same directory as the database. (check-in: fc18c4aadb user: drh tags: trunk) | |
| 19:15 | Changes to the way faults are injected into xShmXXX VFS calls. (check-in: 716d99f392 user: dan tags: trunk) | |
| 17:46 | Change the OOM and IO error test cases in walfault.test so that each test case runs both types of error simulation. (check-in: b627e15368 user: dan tags: trunk) | |
| 15:44 | Delay the decision to restart the log file until data is actually ready to be written to the log file (instead of at the start of a write transaction). (check-in: b1abfaaf53 user: dan tags: trunk) | |
| 15:24 | The incremental checkpoint feature is not perfect yet, but it is working well enough to merge it into the trunk. (check-in: 1d3e569e59 user: drh tags: trunk) | |
| 14:30 | Merge with [15abbc3416]. (Closed-Leaf check-in: f4b9003a2d user: dan tags: wal-incr-ckpt) | |
| 14:12 | If an attempt to get a read-lock on the WAL fails with SQLITE_BUSY_RECOVER, call the busy-handler at the btree level. (check-in: ce64496509 user: dan tags: wal-incr-ckpt) | |
| 13:17 | Fix a bug introduced by the previous check-in but only seen if SQLITE_ENABLE_EXPENSIVE_ASSERTS is turned on. (check-in: 9c9ec8994b user: drh tags: wal-incr-ckpt) | |
| 12:58 | Fix an off-by-one boundary-value issue in walCleanupHash(). (check-in: f039552e63 user: drh tags: wal-incr-ckpt) | |
| 11:08 | Do not hold the shared-memory mutex in os_unix.c if returning NULL. (check-in: 9622dd468c user: dan tags: wal-incr-ckpt) | |
| 10:44 | If the checkpoint fails to obtain an exclusive lock on one of the read-lock bytes, do not consider this an error. (check-in: 9e95e35728 user: dan tags: wal-incr-ckpt) | |
| 07:51 | Fixes to the test cases in wal2.test. (check-in: cd5fbcbce8 user: dan tags: wal-incr-ckpt) | |
| 01:08 | Comment edits and cleanup in wal.c. No functional code changes. (check-in: e8e666ab82 user: drh tags: wal-incr-ckpt) | |
| 00:28 | Attempt to get the filectrl.test script running. (check-in: e46a8f2b75 user: drh tags: wal-incr-ckpt) | |
| 00:03 | Fix os_unix.c so that it will compile and build on a Mac. (check-in: bc707c83e5 user: drh tags: wal-incr-ckpt) | |
25 Years Ago (more context)
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2000-06-01
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| 11:16 | :-) (CVS 33) (check-in: 6b9056364e user: drh tags: trunk) | |
| 00:04 | :-) (CVS 32) (check-in: 81bee278dc user: drh tags: trunk) | |
| 00:03 | :-) (CVS 31) (check-in: f035dec94a user: drh tags: trunk) | |