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99 check-ins occurring around 7e3c9594390ac8de.
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2022-03-02
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| 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) | |
| 18:58 | Version 3.38.0 (check-in: 40fa792d user: drh tags: trunk, release, major-release, version-3.38.0) | |
| 15:47 | Fix an undersized memory allocation in the test harness for RTREE. This error was in test logic only, not in the SQLite library itself. forum post 35470a0a72a005e1 (check-in: 7e3c9594 user: drh tags: trunk) | |
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2022-02-21
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| 16:49 | Merge the latest trunk changes into the reuse-schema branch. (check-in: b3c26f4a user: drh tags: reuse-schema) | |
| 14:30 | Fix compiler warnings for older compilers (ex: gcc 4.0.1 powerpc-apple-darwin). (check-in: 5c188243 user: drh tags: trunk) | |
| 13:44 | Remove stray tab characters from auxiliary source code files. (check-in: e25e3358 user: drh tags: trunk) | |
| 13:02 | Add SQLITE_OMIT_JSON to the compile-time option test sequence. (check-in: f36325a6 user: drh tags: trunk) | |
| 00:23 | Do not allow error messages from sqlite3NestedParse() to leak up into the main parse. (check-in: 9c4e21ab user: drh tags: trunk) | |
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2022-02-19
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| 21:25 | Improve .backup and .save help text (check-in: 741651fd user: larrybr tags: trunk) | |
| 15:57 | Add a NEVER() to a branch that is unreachable for STAT4. (check-in: e4e97505 user: drh tags: trunk) | |
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2022-02-17
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| 17:24 | Enhance the documentation on sqlite3_stmt_readonly() to explain that EXPLAIN and EXPLAIN QUERY PLAN do not affect the return value. Add test cases to verify this. Add new test cases and requirements marks for complete requirements test coverage on this interface. (check-in: a6fbb7ba user: drh tags: trunk) | |
| 14:33 | Remove references to the now-defunct SQLITE_ENABLE_JSON1 compile-time option. (check-in: db950192 user: drh tags: trunk) | |
| 14:29 | Fix a testing error on Windows that was recently added to shell5.test. (check-in: 6cace543 user: drh tags: trunk) | |
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2022-02-16
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| 15:11 | Make the sqlite3_error_offset() interface accessible from TCL using the new "erroroffset" method on the sqlite3 object. (check-in: 3454a122 user: drh tags: trunk) | |
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2022-02-15
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| 20:56 | Merge the latest trunk enhancements into the reuse-schema branch. (check-in: b9ba43fc user: drh tags: reuse-schema) | |
| 20:47 | Merge the latest trunk enhancements into the begin-concurrent-pnu-wal2 branch. (check-in: 1336d2f2 user: drh tags: begin-concurrent-pnu-wal2) | |
| 20:37 | Merge recent trunk enhancements into the wal2 branch. (check-in: 7dba8188 user: drh tags: wal2) | |
| 20:24 | Merge recent trunk enhancements into the begin-concurrent-report branch. (check-in: 213df7a0 user: drh tags: begin-concurrent-report) | |
| 20:18 | Merge the latest trunk changes into the begin-concurrent branch. (check-in: 94838f16 user: drh tags: begin-concurrent) | |
| 17:04 | Sync with trunk (check-in: 2b4a295c user: larrybr tags: shell-tweaks) | |
| 13:23 | Improved rendering of floating point numbers without a fractional part in ".dump" output from the CLI. Forum post 550d877659f37cb2. (check-in: 9edaeed5 user: drh tags: trunk) | |
| 11:46 | New assert() statements to help prove correctness of memjournal.c. (check-in: d74ec88c user: drh tags: trunk) | |
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2022-02-14
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| 21:11 | Generalize the in-memory journal so that it is able to accept writes that begin at any offset less than or equal to the current file size. (check-in: c039d547 user: drh tags: trunk) | |
| 18:55 | CLI .import can auto-rename non-unique column names when it creates a new table (check-in: 4b5d07ea user: larrybr tags: trunk) | |
| 18:18 | Minor correction to the early corruption detection added by [a6fda39e81d0da98|check-in a6fda39e81d0da98] so that it works even if the page being cleared in page 1 of the database. (check-in: a5ec1690 user: drh tags: trunk) | |
| 13:53 | Fix a bad assert() (it needs an "||CORRUPT_DB" term) in b-tree, discovered by dbsqlfuzz. (check-in: f5f263cc user: drh tags: trunk) | |
| 01:12 | CLI's .import column rename made more minimal, and reports renames. (Leaf check-in: c626cff7 user: larrybr tags: auto-column) | |
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2022-02-13
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| 22:18 | Sync w/trunk, fix zAutoColumns placement blunder, all to pass all TCL tests (check-in: 67dc59f4 user: larrybr tags: auto-column) | |
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2022-02-12
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| 18:56 | Do not run merge1.test with SQLITE_OMIT_VIRTUALTABLE builds. (check-in: bf8dbfd4 user: dan tags: trunk) | |
| 16:02 | Fix a possible user-after-free in ALTER TABLE found by asan. (check-in: 9252619d user: dan tags: trunk) | |
| 13:45 | Update fuzz.test to account for a change in error message made in the core. (check-in: c57601b5 user: dan tags: trunk) | |
| 13:37 | Avoid dropping SQLITE_TOOBIG errors in the quote() function. (check-in: 115c3051 user: dan tags: trunk) | |
| 13:12 | For .import auto-column, aid build-time override of rename decoration. (check-in: 433e5ead user: larrybr tags: auto-column) | |
| 10:48 | Fix auto-column bug noted by post https://sqlite.org/forum/forumpost/d102c15d63 (check-in: 689137e1 user: larrybr tags: auto-column) | |
| 02:15 | Sync w/trunk, allow build-time override of auto-column decorating character (check-in: caaef4c5 user: larrybr tags: auto-column) | |
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2022-02-11
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| 21:20 | Fix a test in without_rowid1.test so that it is disabled without ALTER TABLE support, as it uses ALTER TABLE. (check-in: ca22a64e user: drh tags: trunk) | |
| 19:41 | Update some OOM tests of the ALTER TABLE command to account for an error message which may be returned if opening the temp db fails. (check-in: 3409fd41 user: dan tags: trunk) | |
| 17:47 | Load recent dbsqlfuzz finds into test/fuzzdata8.db. (check-in: b275ad25 user: drh tags: trunk) | |
| 17:47 | Reference the wayback machine for the dead hyperlink to the MS support page in the comments about why the extra typedef for va_arg(). No code changes. (check-in: ab1a9b5b user: drh tags: trunk) | |
| 17:33 | Fix an assert() in the pager by adding "|| CORRUPT_DB", in as much as the assert() is not necessarily true if the database size in the header is wrong. dbsqlfuzz f2f996065b90988aa9b0ae425b66dbb296546a08. (check-in: a51402e8 user: drh tags: trunk) | |
| 16:10 | Fix a problem in [c006515ae6faff65] causing an assert() to fail with some build configurations. (check-in: d7ff262d user: dan tags: trunk) | |
| 14:08 | Use the enhanced SQLITE_TESTCTRL_LOCALTIME_FAULT (2) capability to do better testing of the 'localtime' and 'utc' modifiers to date/time functions. (check-in: f3807194 user: drh tags: trunk) | |
| 13:40 | Upon .import column renaming, issue message saying so. Test this. (check-in: 8b6ca930 user: larrybr tags: auto-column) | |
| 12:06 | Fix the bind2.test test script so that it works even if SQLITE_ENABLE_PREUPDATE_HOOK is not defined. Fix for test-case breakage from check-in [c006515ae6faff65]. (check-in: 937d3a45 user: drh tags: trunk) | |
| 11:37 | Work around the MSVC bug that prevents the use of function pointer types in the second argument of va_arg() by adding a typedef. (check-in: eae3ab0a user: drh tags: trunk) | |
| 01:21 | CLI auto-column rename revamped after forum discussion. (check-in: 2da1f8e4 user: larrybr tags: auto-column) | |
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2022-02-10
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| 23:12 | Fix SQLITE_TESTCTRL_LOCALTIME_FAULT so that it works even if mutexes are enabled. (check-in: 64537a06 user: drh tags: trunk) | |
| 21:26 | Enhance SQLITE_TESTCTRL_LOCALTIME_FAULT so that is able to install an alternative localtime() interface so that the localtime logic an be better tested. (check-in: 6e25cb08 user: drh tags: trunk) | |
| 15:40 | Performance improve to the 'localtime' and 'utc' modifiers for date/time functions. (check-in: 85cb6014 user: drh tags: trunk) | |
| 12:57 | Faster implementation of the date(), time(), and datetime() functions. (check-in: fa1b393b user: drh tags: trunk) | |
| 12:31 | Fix the test harness so that it builds without SQLITE_ENABLE_PREUPDATE_HOOK. Has been broken since [c006515ae6faff65]. (check-in: 4565f711 user: drh tags: trunk) | |
| 03:21 | A CLI feature. auto .import (new table) columns. WIP (check-in: 7e3be36d user: larrybr tags: auto-column) | |