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100 check-ins occurring around ad3ffa1a75a5a032.
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2022-03-10
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| 11:10 | Improve formatting of changes doc for this branch (Leaf check-in: 2129cfb8 user: larrybr tags: shell-tweaks) | |
| 02:23 | Mention that sqlite3_column_text16() returns have native endianness (check-in: 25b7f88f user: larrybr tags: trunk) | |
| 01:15 | Check-in [642a0b4752743216] fixing sqlite_dbpage is not exactly correct. This patch should fix it. (check-in: b6c4c8a0 user: drh tags: branch-3.38) | |
| 01:10 | Check-in [642a0b4752743216] fixing sqlite_dbpage is not exactly correct. This patch should fix it. (check-in: 6ba36714 user: drh tags: trunk) | |
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2022-03-09
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| 22:16 | Sync w/Trunk, finish doc/sh_tweak_changes.md (check-in: 5a1797c2 user: larrybr tags: shell-tweaks) | |
| 18:30 | Further refinements to the sqlite_offset() fix from [6029514b08b88e3f]. (check-in: 98799d7b user: drh tags: branch-3.38) | |
| 18:29 | Further refinements to the sqlite_offset() fix from [6029514b08b88e3f]. (check-in: 6f838305 user: drh tags: trunk) | |
| 14:29 | Fix the sqlite_dbpage virtual table so that it starts a write transaction on all attached schemas. (check-in: e92c4fdb user: drh tags: branch-3.38) | |
| 14:22 | Fix the sqlite_dbpage virtual table so that it starts a write transaction on all attached schemas. (check-in: 642a0b47 user: drh tags: trunk) | |
| 13:22 | Do not use va_arg() as an l-value, because AIX does not allow that, from what we are told. (check-in: 46d1a6de user: drh tags: trunk) | |
| 12:20 | Improve the defenses against bad pathnames input into the findCreateFileMode() function of os_unix.c in order to quiet static-analyzer warnings. There are no demonstrated problems in the prior code, but this change makes the code easier to prove correct and more robust against future changes. (check-in: a9cda389 user: drh tags: trunk) | |
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2022-03-08
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| 16:44 | (WIP) Add DB-dispatch for dot commands upon shell extension load. (check-in: 19f2a747 user: larrybr tags: cli_extension) | |
| 16:12 | Fix a potentially uninitialized local variable in the ".import" command of the CLI - introduced by [741651fd4b1b776b]. This same change is part of the nearby "Fix compiler warnings" check-in. (check-in: ce9e3d90 user: drh tags: branch-3.38) | |
| 15:49 | Fix a minor typo in a comment. (check-in: cf61419f user: drh tags: trunk) | |
| 13:59 | Fix compiler warnings. (check-in: 5e30c6ea user: drh tags: trunk) | |
| 03:10 | Add a .md summarizing CLI changes on this branch and their motivation or purpose. (check-in: 5ddccc2f user: larrybr tags: shell-tweaks) | |
| 01:02 | CLI regularization and code cleanup (check-in: 16af0e45 user: larrybr tags: cli_extension) | |
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2022-03-07
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| 19:00 | Sync with trunk (check-in: 1194093a user: larrybr tags: cli_extension) | |
| 18:42 | Add multi-threaded test for the features on this branch. Fix a misuse of xShmLock(). (check-in: 1ec05168 user: dan tags: begin-concurrent-pnu-wal2) | |
| 18:38 | Disable an assert in moveToRoot() when the database is corrupt. Forum post e9a176b7bd. (check-in: ab744a5d user: drh tags: branch-3.38) | |
| 18:32 | Disable an assert in moveToRoot() when the database is corrupt. Forum post e9a176b7bd. (check-in: ae464a18 user: drh tags: trunk) | |
| 17:19 | In the stay-on-last-page optimization for sqlite3BtreeIndexMoveto() (check-in [0057bbb508e7662b] about 16 hours ago), be sure to clear the BTCF_ValidOvfl flag, since the overflow cache is invalidated by the search on the last page. OSSFuzz issue 45329. (check-in: 0021bebc user: drh tags: trunk) | |
| 16:40 | Do not allocate new Trigger objects in the parser following a syntax error, to avoid violating invariants associated with Expr nodes. See forum thread 2024e94071ef1531 for more information. (check-in: 369d2404 user: drh tags: branch-3.38) | |
| 16:22 | Do not allocate new Trigger objects in the parser following a syntax error, to avoid violating invariants associated with Expr nodes. See forum thread 2024e94071ef1531 for more information. (check-in: 5e0ed49b user: drh tags: trunk) | |
| 14:59 | Fix the code generated for vector IN operator constraints on virtual tables so that they work even if the "omit" field in the sqlite3_index_info object is off. This has apparently never worked correctly before. Presumably, nobody has ever before written a virtual table that can use vector IN operator constraints and that relies on bytecode to double-check the constraints. Test cases in TH3. Problem discovered by dbsqlfuzz cab8e26194a40147627094f3c6849c0a7b1e0310. (check-in: 4a2040d5 user: drh tags: branch-3.38) | |
| 14:51 | Fix the code generated for vector IN operator constraints on virtual tables so that they work even if the "omit" field in the sqlite3_index_info object is off. This has apparently never worked correctly before. Presumably, nobody has ever before written a virtual table that can use vector IN operator constraints and that relies on bytecode to double-check the constraints. Test cases in TH3. Problem discovered by dbsqlfuzz cab8e26194a40147627094f3c6849c0a7b1e0310. (check-in: 21b65657 user: drh tags: trunk) | |
| 01:29 | Optimizations to sqlite3BtreeIndexMoveto() avoid unnecessary comparisons if the cursor is already near the end of the table and is not moving far. This case is more common that you would expect. The optimization saves almost 4 million CPU cycles. (check-in: 0057bbb5 user: drh tags: trunk) | |
| 01:28 | Fix the .import problem in the CLI reported by forum post 72a024c957. (check-in: d753285b user: drh tags: branch-3.38) | |
| 00:14 | Disentangle variable use in last checkin (check-in: 4c3a0260 user: larrybr tags: trunk) | |
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2022-03-06
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| 23:41 | For CLI .import, revert to importing into temp or main when given table is found there and no -schema option used. And plug an obscure leak. (check-in: bf9d1278 user: larrybr tags: trunk) | |
| 20:22 | Fix obsolete but harmless comments in btree. No changes to code. (check-in: 4838b888 user: drh tags: trunk) | |
| 17:53 | (WIP) Shell meta-command objectification done, ready for dbShell to be loaded and used for extension meta-commands (check-in: a88983ec user: larrybr tags: cli_extension) | |
| 11:44 | The sqlite_offset() function should be non-deterministic. dbsqlfuzz 3df8230bb940870db87ffca2c0fc759c1e7fa356. (check-in: 80837576 user: drh tags: branch-3.38) | |
| 11:43 | The sqlite_offset() function should be non-deterministic. dbsqlfuzz 3df8230bb940870db87ffca2c0fc759c1e7fa356. (check-in: e1a185e6 user: drh tags: trunk) | |
| 03:22 | (WIP) shell extension load and ShellState internal/external partitioning in place, passing shell tests with trivial exceptions (check-in: a85679d3 user: larrybr tags: cli_extension) | |
| 00:01 | Remove a NEVER() associated with sqlite_offset()> (check-in: bf2501e2 user: drh tags: branch-3.38) | |
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2022-03-05
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| 23:52 | Remove a NEVER() associated with sqlite_offset()> (check-in: e29dffcd user: drh tags: trunk) | |
| 20:20 | Fix the 'localtime' modifier in date/time functions so that it preserves fractional seconds. Forum post 2ffbaa2c3fd7fb82. (check-in: 6833f4ae user: drh tags: branch-3.38) | |
| 20:12 | Fix the 'localtime' modifier in date/time functions so that it preserves fractional seconds. Forum post 2ffbaa2c3fd7fb82. (check-in: 1c875b07 user: drh tags: trunk) | |
| 19:46 | Increase the version number to 3.38.1. (check-in: cd87e77d user: drh tags: branch-3.38) | |
| 19:39 | Cherry-pick all bug fix changes since the 3.38.0 release. (check-in: 45a5d5ac user: drh tags: branch-3.38) | |
| 19:36 | Further improvements to the sqlite_offset() function. (check-in: 4230e2f5 user: drh tags: trunk) | |
| 14:44 | Fix the sqlite_offset() function so that it gives the correct answer even if the argument is a virtual column in an index-only query. Test cases in TH3. (check-in: 6029514b user: drh tags: trunk) | |
| 11:57 | Update obsolete text in the ICU README.txt file talking about SQLite's robustness (or lack thereof) in the face of corrupt database files. (check-in: dc88fc62 user: drh tags: trunk) | |
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2022-03-04
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| 20:54 | Do try to evaluate the Bloom filter on a LEFT JOIN early, as doing so essentially converts it into an INNER JOIN. See forum thread 544af7eee2. (check-in: d46d0e67 user: drh tags: trunk) | |
| 16:28 | When setting an sqlite3_value object to a pointer value, make sure any prior memory allocations associated with that object have been cleared first. dbsqlfuzz 33f842d1a09afaad5f078c3e1162a54b78e5f2ab. (check-in: 31e1bde4 user: drh tags: trunk) | |
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2022-03-03
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| 19:40 | Restore the ability to push-down OR subterms of the WHERE clause when processing a multi-index OR. (check-in: d71fb6fd user: drh tags: trunk) | |
| 16:48 | Make sure the xParseCell and xCellSize methods of the MemPage object are initialized consistently even if the page is detected as being corrupt. dbsqlfuzz fd21f341f3b4f582401d2feb2a1c0c4cc2c26caa. (check-in: 725a0643 user: drh tags: trunk) | |
| 15:59 | Fix for the problem identified in forum post 0cd8e058bf: When evaluating an multi-index OR, do not push down auxiliary WHERE clause terms that involve subqueries into the OR-subqueries. Otherwise, the covering-index optimizer might convert table-references into index-references for the particular OR index that is active for the branch in which the subquery subroutine is coded, and those index-references will not work if the subquery subroutine is invoked from a different OR branch that uses a different index. (check-in: 61a1c6db user: drh tags: trunk) | |
| 15:00 | Add the new OP_BeginSubrtn opcode (which is really an alias for OP_Integer) and make other changes so that the span of a subroutine that implements a subquery is more readily apparent in bytecode listings. (check-in: b8226748 user: drh tags: trunk) | |
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2022-03-02
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| 21:04 | Bloom filter pull-down optimization is incompatible with Skip-Scan. Make sure the query planner does not try to to both. Forum post 50a1bbe08ce4c29c. (check-in: ad3ffa1a user: drh tags: trunk) | |
| 17:50 | Faster version of sqlite3VdbeMemRelease(). (check-in: 86c5fa2f user: drh tags: trunk) | |
| 13:45 | Reinstate the releaseMemArray() performance optimization of [bb520293d8c11518] with corrections. (check-in: 1291080d user: drh tags: trunk) | |
| 11:39 | The optimization at [ece326db50201937] is not quite right, so back it out for now. (check-in: b218a4b9 user: drh tags: trunk) | |
| 01:02 | Fix a harmless compiler warning. (check-in: 6497997a user: drh tags: trunk) | |
| 00:50 | The performance optimizations at [bb520293d8c11518] is not quite right, so it has to be backed out. (check-in: 15f73b12 user: drh tags: trunk) | |
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2022-03-01
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| 20:15 | The MemPage.aDataEnd field should point to the end of the data buffer for the page, not just the end of the usable portion of that buffer. The purpose aDataEnd is to detect cells that overflow the page, and that won't work on a page with reserved bytes and a cell that starts in the reserved region, unless the boundary is at the very end of the page. Chromium issue 1276294. (check-in: f839c0bc user: drh tags: trunk) | |
| 19:19 | Fix a minor typo in a comment. (check-in: 86ba06aa user: drh tags: trunk) | |
| 16:22 | Fix two assert() statements in btree.c which were not true in the case of a corrupt database file. Forum post 14819f2063. (check-in: 3b36ed79 user: drh tags: trunk) | |
| 15:48 | Fix slightly-incorrect assert() statements. Forum post f1e83b77b5ff37db (check-in: 3c9f5c9d user: drh tags: trunk) | |
| 14:13 | Increase the max_page_count on ROLLBACK, if necessary, so that it is sufficient to cover the entire database. Fix for the problem identified by forum post 3b9e894312. (check-in: 12c01216 user: drh tags: trunk) | |
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2022-02-28
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| 16:44 | Fix the Xfer-optimization on the INSERT statement so that it is omitted if there is a RETURNING clause, since that optimization is not able to deal with RETURNING. See forum thread 595e132f71 for details. (check-in: 1d3760a5 user: drh tags: trunk) | |
| 14:26 | Reorganize the bits in Mem.flags. Free up one bit for reuse. (check-in: fe454291 user: drh tags: trunk) | |
| 13:38 | Expand the comment on the definition of the Mem object to better explain the meanings of the various flag bits. (check-in: f2f04260 user: drh tags: trunk) | |
| 12:16 | Performance optimization in initMemArray() saves about 750K cycles with only a 4-byte increase in code size. (check-in: c3e9cd5e user: drh tags: trunk) | |
| 12:08 | The performance increase in the previous check-in of this branch was due to the revised loop in initMemArray() and reordering fields of Mem - not the call the memcpy(). Changing the code to avoid memcpy() results in an even better gain, and code that is far less dodgy. (Closed-Leaf check-in: d74aa979 user: drh tags: optimize-init-mem) | |
| 03:25 | An optimization to initMemArray() saves almost 500K cycles. But it seems a little dodgy. I want to think about this more before merging to trunk. Perhaps there is a cleaner way to accomplish the same. (check-in: 7fefd867 user: drh tags: optimize-init-mem) | |
| 02:35 | Avoid unnecessary deinitialization of the Mem.flags field. (check-in: bb520293 user: drh tags: trunk) | |
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2022-02-27
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| 21:10 | Cache values of UnpackedRecord.aMem[0] into new fields of UnpackedRecord. This avoids extra indirections and saves about 750K cycles. (check-in: 7cf2d1f0 user: drh tags: trunk) | |
| 18:54 | Bypass a single branch in vdbeRecordCompareString() in the common case, for a performance increase of over 600K CPU cycles. (check-in: 36f0f07e user: drh tags: trunk) | |
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2022-02-26
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| 23:01 | Remove an unnecessary local variable for a small performance increase and size reduction. (check-in: 9bda611f user: drh tags: trunk) | |
| 14:39 | Allow the OP_Column opcode to read rows that are larger than SQLITE_LIMIT_LENGTH as long as the specific field being read out is less than or equal to SQLITE_LIMIT_LENGTH. (check-in: 1bf48489 user: drh tags: trunk) | |
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2022-02-25
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| 20:11 | Revise the initialization processing for OP_Column to make it about 1.8 million cycles faster. (check-in: 3b7259eb user: drh tags: trunk) | |
| 18:51 | Fix the OP_NullRow documentation so that it accurately describes what it actually does for a pseudo-cursor. (check-in: 4e269902 user: drh tags: trunk) | |
| 18:15 | Dead branch: Superseded by [3b7259ebd5b9b1f7] (Closed-Leaf check-in: 09a47f32 user: drh tags: simplify-cursor-state) | |
| 16:21 | Do not do a deferred seek on a cursor that is marked nullRow. (check-in: 1c026bcb user: drh tags: simplify-cursor-state) | |
| 15:44 | This branch proposes to consolidate various state fields of VdbeCursor (specifically, nullRow, deferredMoveto, and cacheStatus) into a single eCurState field. This first check-in adds the new eCurState field while retaining and continuing to use the legacy state fields. (check-in: 7953716c user: drh tags: simplify-cursor-state) | |
| 13:29 | Improved comment on the codeDeferredSeek() routine. No code changes. (check-in: 54f49f65 user: drh tags: trunk) | |
| 11:30 | Fix unimportant typos in comment text. (check-in: 39346013 user: drh tags: trunk) | |
| 01:23 | Invoking SQLITE_TESTCTRL_INTERNAL_FUNCTIONS causes the flags field of the PRAGMA function_list to show all bits, including internal-use-only bits, rather than just the bits that are part of the API. (check-in: ad1be348 user: drh tags: trunk) | |
| 01:10 | Remove unused P4 types on the Opcode object. Saves a few bytes of code space and simplifies the code. (check-in: aca53843 user: drh tags: trunk) | |
| 00:09 | Merge shell-tweaks enhancements (with 3.38) (check-in: 4c7d94d3 user: larrybr tags: cli_extension) | |
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2022-02-24
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| 14:44 | Change the OP_Next and OP_Prev opcodes so that they invoke sqlite3BtreeNext() and sqlite3BtreePrevious() directly rather than through a function pointer, for improved performance and a decrease in code size. (check-in: 9d13cbbe user: drh tags: trunk) | |
| 11:09 | Spell fix, no code change (check-in: f2597fae user: larrybr tags: trunk) | |
| 04:29 | Regularize CLI .mode processing (check-in: 6d055724 user: larrybr tags: cli_extension) | |
| 01:41 | Fix an assert() so that it is still valid following OOM with the latest enhancements. (check-in: ecf832f7 user: drh tags: trunk) | |
| 01:08 | Update the version number of version 3.39.0 for the next development cycle. (check-in: 9542e9be user: drh tags: trunk) | |
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2022-02-23
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| 22:56 | Add a new subclass for MemPage.xCellSize specifically for the case of a leaf page in a B+Tree, that is optimized for that cases. This gains a half million cycles or more at the cost of less than 200 bytes of code space. (check-in: 7ad82922 user: drh tags: trunk) | |
| 18:23 | Optimize calls to get2byte() in btree.c for almost a one-million cycle performance gain and a few bytes less code. (check-in: 41061f29 user: drh tags: trunk) | |
| 17:16 | Defer the check for error check Pgno zero until after the page fetch misses, to gain a few CPU cycles and a small size reduction. (check-in: ece326db user: drh tags: trunk) | |
| 17:00 | Store the page number for the PENDING_BYTE page in the Pager object, rather than computing the page number every time it is needed, because it turns out that number is needed quite frequently. This saves a few hundred thousand CPU cycles and a few bytes of code space. (check-in: 5aa9c3eb user: drh tags: trunk) | |
| 10:10 | Sync with 3.38 (check-in: b9b27d74 user: larrybr tags: cli_extension) | |
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2022-02-22
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| 22:28 | Sync w/3.38, add .parameter ls to CLI (check-in: 8c9a5fb2 user: larrybr tags: shell-tweaks) | |
| 20:38 | Don't reload the schema on PRAGMA database_list. (check-in: 630fe446 user: drh tags: reuse-schema) | |
| 20:29 | For the "PRAGMA database_list" statement, do not check to see if the schema is up-to-date and do not try to reload the schema. (check-in: 710de6a2 user: drh tags: trunk) | |
| 20:04 | Merge version 3.38.0 into the reuse-schema branch. (check-in: 8fe85dcd user: drh tags: reuse-schema) | |
| 19:56 | Merge version 3.38.0 into the begin-concurrent-pnu-wal2 branch. (check-in: 8387e4f3 user: drh tags: begin-concurrent-pnu-wal2) | |
| 19:46 | Merge version 3.38.0 into the wal2 branch. (check-in: de24c8ee user: drh tags: wal2) | |
| 19:37 | Merge version 3.38.0 into the begin-concurrent-report branch. (check-in: 0bbf7be2 user: drh tags: begin-concurrent-report) | |
| 19:30 | Merge version 3.38.0 into the begin-concurrent branch. (check-in: c5998c43 user: drh tags: begin-concurrent) | |