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42 check-ins using file src/vdbe.c version e9f7f818f1
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2020-09-16
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| 16:49 | Fix a buffer overread found by OSSFuzz that could occur if a WITHOUT ROWID table with many columns was NATURAL JOINed against itself. (Leaf check-in: 807643c596 user: dan tags: branch-3.33) | |
| 16:48 | Do not invoke usleep() for more than 999999 microseconds. (check-in: 1f0055d0a2 user: dan tags: branch-3.33) | |
| 16:45 | Fix a tsan error that could occur when using shared-cache mode. (check-in: 61981b9747 user: dan tags: branch-3.33) | |
| 16:44 | Fix another (harmless in practice) tsan error in shared-cache mode. (check-in: 553e20c3d7 user: dan tags: branch-3.33) | |
| 16:41 | 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: 1b4801de2d user: dan tags: branch-3.33) | |
| 16:40 | Correctly handle expressions like "x IS (not) true/false" within the rhs of IN() expressions. Fix for [f3ff1472]. (check-in: 4236103379 user: dan tags: branch-3.33) | |
| 16:39 | Fix a crash that could occur in SQLITE_MAX_EXPR_DEPTH=0 builds when processing SQL containing syntax errors. (check-in: 6438db4570 user: dan tags: branch-3.33) | |
| 16:38 | 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: 8504161154 user: dan tags: branch-3.33) | |
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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) | |
| 10:52 | 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) | |
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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 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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| 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) | |
| 13:23 | 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) | |
| 18:00 | Modify a test for corruption within the wal checkpoint code to account for the pending-byte page. And for the fact that test configurations might move the pending-byte page. (check-in: 7dfb74c37e user: dan tags: trunk) | |
| 17:20 | Minor comment fixes. No changes to code. (check-in: 533aeb9008 user: drh tags: trunk) | |
| 16:46 | Remove an unused #define from sqliteInt.h. (check-in: d5b254f94c user: drh tags: trunk) | |
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2020-08-10
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| 21:01 | Simplify #ifdefs associated with Parse.eParseMode. Fix an #ifdef error associated with SQLITE_OMIT_AUTOVACUUM. (check-in: 5bbd4bddd3 user: drh tags: trunk) | |
| 19:35 | Fix a problem causing test failures in corruptL.test for some permutations. (check-in: 680bdc6524 user: dan tags: trunk) | |
| 19:30 | Fix a problem building fts3 separately from the amalgamation. (check-in: 2a167cfbb2 user: dan tags: trunk) | |
| 14:34 | Fix a shell tool build error caused by some combinations of options. (check-in: 33cd5341ac user: dan tags: trunk) | |
| 14:18 | Fix harmless compiler warnings that surface in newer versions of GCC. (check-in: 9d670a3183 user: drh tags: trunk) | |