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50 events occurring around 3c5e63c22ffbfeb6.
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2020-08-29
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| 15:15 | Improve performance of wal-mode locking on unix in cases where there are hundreds of connections to a single database within the same process. (check-in: a1c19eea8f user: dan tags: trunk) | |
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2020-08-28
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| 20:01 | Fix handling of an xShmLock(SHARED, UNLOCK) call when the caller does not hold any lock on the specified slot, but another connection in the same process holds an EXCLUSIVE. (Closed-Leaf check-in: 3eb365027b user: dan tags: unixshmlock-opt) | |
| 19:27 | Modify the unixShmLock() function to avoid iterating through the (possibly large) set of connections to the same database file. (check-in: e0faddf0df user: dan tags: unixshmlock-opt) | |
| 18:47 | Add the miscellaneous 'series' extension to the shell. (check-in: fc0856dccf user: mistachkin tags: trunk) | |
| 13:10 | Update Lemon documentation. Patches from sgbeal. (check-in: f5dc83442b user: drh tags: trunk) | |
| 12:58 | Fix a couple of unreachable branches. (check-in: f2d26f2b11 user: drh tags: trunk) | |
| 11:19 | Add fts5 test to confirm that for a table with columns a, b, c and d, "{a b}" and "-{c d}" are handled similarly. (check-in: 1a04920998 user: dan tags: trunk) | |
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2020-08-27
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| 20:55 | Remove a (harmless) redundant variable from the CLI implementation. (check-in: 3f7bbb840d user: drh tags: trunk) | |
| 18:36 | Include the original text of the CHECK constraint in the error message for anonymous CHECK constraints. (check-in: 5ce34a955b user: drh tags: trunk) | |
| 16:28 | • Edit [aafb7a21041090e5|aafb7a2104]: Edit check-in comment. (artifact: 26da0582c3 user: drh) | |
| 16:28 | Apply the same fix for ticket [9eda2697f5cc1aba] to text-to-integer conversions that was done for floating point conversions by check-in [1c76f1d8ec0937a2]. (check-in: aafb7a2104 user: drh tags: trunk) | |
| 16:06 | • Edit [1c76f1d8ec0937a2|1c76f1d8ec]: Edit check-in comment. (artifact: 8ebd8e930d user: drh) | |
| 14:53 | Do not attempt to run test script analyze3.test as part of the "prepare" permutation. (check-in: f7f13cb1bc user: dan tags: trunk) | |
| 13:33 | • Closed ticket [be31cf009c]: Unexpected result for % and '1E1' plus 3 other changes (artifact: 928fed832c user: drh) ... 1 similar event omitted. | |
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2020-08-26
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| 19:07 | Enhance the ".databases" command in the CLI so that it shows the result of sqlite3_db_readonly() and sqlite3_txn_state() for each database file. (check-in: 0ffd16d23d user: drh tags: trunk) | |
| 14:12 | • New ticket [be31cf009c] Unexpected result for % and '1E1'. (artifact: 3102412d99 user: mrigger) | |
| 10:50 | If the argument to the ".read" command in the CLI begins with "|" then run the remainder of the argument as a command and read input from the output of that command. (check-in: 6c716f4b55 user: drh tags: trunk) | |
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2020-08-25
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| 19:09 | Add support for the sqlite3_txn_state() interface. (check-in: ad195e3dd8 user: drh tags: trunk) | |
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2020-08-24
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| 23:44 | Reduce the N in the logN term for the sorting cost associated with computing DISTINCT by B-Tree by half, under the assumption that the DISTINCT will eliminate about half the rows of output. This is really a wild guess. But we do not have any better way of estimating what the row-count reduction due to DISTINCT will actually be. (check-in: 8787417ec1 user: drh tags: trunk) | |
| 10:53 | • Ticket [f3ff147288] Incorrect result for IN expression with right-hand IS TRUE sub-expression status still Closed with 3 other changes (artifact: 8f15b88088 user: dan) ... 1 similar event omitted. | |
| 10:52 | Correctly handle expressions like "x IS (not) true/false" within the rhs of IN() expressions. Fix for [f3ff1472]. (check-in: 493a25949b user: dan tags: trunk) | |
| 08:17 | • New ticket [f3ff147288] Incorrect result for IN expression with right-hand IS TRUE sub-expression. (artifact: 009010c075 user: mrigger) | |
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2020-08-20
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| 16:25 | Fix a crash that could occur in SQLITE_MAX_EXPR_DEPTH=0 builds when processing SQL containing syntax errors. (check-in: 5f58dd3a19 user: dan tags: trunk) | |
| 11:03 | Avoid a buffer overrun in test code that could occur if certain test functions were passed a hex-string containing an odd number of digits. (check-in: 3c5e63c22f user: dan tags: trunk) | |
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2020-08-19
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| 23:51 | Try to make SQLite easier to compiler for Mac Catalyst. See [https://sqlite.org/forum/forumpost/803387a1c5|forum post 803387a1c5]. (check-in: e1595a20d7 user: drh tags: trunk) | |
| 23:32 | Do not skip over TK_IF_NULL_ROW operators when bypassing TK_COLLATE operators. Fix to check-in [ac31edd3eeafcef4] which was itself a fix for ticket [45f4bf4eb4ffd788]. (check-in: 871f2ddcfb user: drh tags: trunk) | |
| 15:24 | Update releasetest_data.tcl so that the "Fast-One" configuration runs bigmmap.test as part of release testing. (check-in: a0aa35aaa5 user: dan tags: trunk) | |
| 15:21 | Fix a problem in test file bigmmap.test. (check-in: d8e4738216 user: dan tags: trunk) | |
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2020-08-17
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| 21:03 | When doing an UPDATE or DELETE using a multi-column index where only a few of the earlier columns of the index are useful for the index lookup, postpone doing the main table seek until after all WHERE clause constraints have been evaluated, in case those constraints can be covered by unused later terms of the index, thus avoiding unnecessary main table seeks. (check-in: 0ecda43371 user: dan tags: branch-3.28) | |
| 09:11 | Fix the -quote option on the CLI to set the correct column separator. (check-in: c778f8295c user: drh tags: trunk) | |
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2020-08-16
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| 00:30 | Optimization to sqlite3BeginWriteOperation(). (check-in: 2173d4c6e3 user: drh tags: trunk) | |
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2020-08-15
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| 23:48 | Optimization of the sqlite3SrcListDelete() routine. (check-in: 1b4acd1ac4 user: drh tags: trunk) | |
| 22:23 | Remove more unnecessary sqlite3GetVdbe() calls, replacing them with assert()s. (check-in: b7dc932197 user: drh tags: trunk) | |
| 21:55 | Avoid unnecessary calls to the sqlite3GetVdbe() routine. Add assert() statements to prove each call is unnecessary. (check-in: 86d3790caf user: drh tags: trunk) | |
| 19:58 | Omit the unnecessary not-NULL check on the upper bound of a forward index range scan. The subsequent OP_IdxGT will always catch the NULL. Similarly, omit the not-NULL check on the lower bound of a reverse index range scan, as the SeekLE opcode will disallow the NULL. (check-in: e51ecadcbd user: drh tags: trunk) | |
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2020-08-14
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| 21:51 | When doing an UPDATE or DELETE using a multi-column index where only a few of the earlier columns of the index are useful for the index lookup, postpone doing the main table seek until after all WHERE clause constraints have been evaluated, in case those constraints can be covered by unused later terms of the index, thus avoiding unnecessary main table seeks. (check-in: 7fee0b1075 user: drh tags: trunk) | |
| 21:37 | Update the version number to 3.34.0 for the next development cycle. (check-in: 70f34f3df5 user: drh tags: trunk) | |
| 21:32 | Optimizations to the logic that converts main table accesses into equivalent index accesses. Code is now slightly smaller and faster than trunk. (Closed-Leaf check-in: 611b640442 user: drh tags: delete-bytecode-optimization) | |
| 20:04 | For UPDATE and DELETE, use OP_DeferredSeek always. If the seek must later be resolved, add the OP_FinishSeek opcode after all WHERE clause terms have been processed. This obviates the need for the WHERE_SEEK_TABLE and WHERE_SEEK_UNIQ_TABLE flags to sqlite3WhereBegin() and the ensuing complication, and it allows the covering index optimization to be used further into WHERE clause processing. (check-in: a495f60d31 user: drh tags: delete-bytecode-optimization) | |
| 17:39 | Experimental change to try to get some DELETE operations to access values using the index rather than the main table, so as to avoid unnecessary main table seeks. (check-in: 2f7cb6ab39 user: drh tags: delete-bytecode-optimization) | |
| 16:14 | Fix an inconsequential memory leak in sqldiff. Update the "Sanitize" case in wapptest.tcl to use -fsanitize=address,undefined, and to run more tests. (check-in: 613fb5c252 user: dan tags: trunk) | |
| 13:55 | Merge the 3.33.0 release into the reuse-schema branch. (check-in: e456d43708 user: drh tags: reuse-schema) | |
| 13:23 | Version 3.33.0 (check-in: fca8dc8b57 user: drh tags: trunk, release, version-3.33.0) | |
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2020-08-13
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| 17:27 | Fix "make test" handling of environment variable QUICKTEST_OMIT so that it can be used to exclude test files in other than the main test directory. (check-in: b050976079 user: dan tags: trunk) | |
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2020-08-12
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| 16:19 | Improvement on the previous fix. (check-in: f6cffa2d50 user: drh tags: trunk) | |
| 15:39 | Fix an assertion() fault in ALTER TABLE found by OSSFuzz. Test case in TH3. (check-in: 41de742c57 user: drh tags: trunk) | |
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2020-08-11
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| 21:53 | Fix harmless USAN warnings from gcc9. (check-in: 72c4c69fea user: drh tags: trunk) | |
| 18:17 | New test cases for the use of the ieee754 and decimal extensions in the CLI. (check-in: bc1590f32f user: drh tags: trunk) | |