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182 events for the month beginning 2023-03-01 by user drh
Following month ↑|
2023-03-31
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| 23:59 | Omit the the count-of-view optimization if there is a HAVING clause. (check-in: a8faea28 user: drh tags: branch-3.41) | |
| 23:58 | • Edit [babe2b5e59647ac9|babe2b5e]: Edit check-in comment. (artifact: 181b21af user: drh) | |
| 23:48 | Omit the the count-of-view optimization if there is a HAVING clause. This fixes a problem that originated with check-in [9322a7c21f1c22ba]. dbsqlfuzz 6a107e3055bd22afab31cfddabc2d9d54fcbaf69 (check-in: babe2b5e user: drh tags: trunk) | |
| 16:27 | Merge recent trunk fixes into the nan-inf branch. (Leaf check-in: a51fb9d7 user: drh tags: nan-inf) | |
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2023-03-30
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| 19:14 | Earlier error detection for index expression usage by aggregate functions. dbsqlfuzz 29214ace4e25c98d2ddff8fbcf97afdda23f28b9 (check-in: cf8dd8cd user: drh tags: branch-3.41) | |
| 19:05 | Earlier error detection for index expression usage by aggregate functions. dbsqlfuzz 29214ace4e25c98d2ddff8fbcf97afdda23f28b9 (check-in: 8e841e7f user: drh tags: trunk) | |
| 16:08 | Omit a branch that is no longer needed following [c9c4f287652933eb]. (check-in: 960a488a user: drh tags: trunk) | |
| 11:42 | • Fixed ticket [b50528af]: "WHERE a=? AND b IN (?,?,...) AND c>?" query using the seekscan optimization sometimes returns extra rows. plus 3 other changes (artifact: 7a100abd user: drh) | |
| 11:28 | Cherrypick three fixes from trunk. (check-in: 5583ea82 user: drh tags: branch-3.41) | |
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2023-03-29
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| 17:26 | Back out elements (1) and (2) from [96ec8306457eebf5]. (check-in: d8b17615 user: drh tags: nan-inf) | |
| 16:28 | Merge recent trunk fixes into the nan-inf branch. (check-in: 248bf629 user: drh tags: nan-inf) | |
| 15:16 | Another #ifdef to omit code that is only used by STAT4. (check-in: 445c7556 user: drh tags: trunk) | |
| 14:42 | New #ifdefs to omit code that is unused except under STAT4. (check-in: 09a9b30b user: drh tags: trunk) | |
| 11:40 | Enhance PRAGMA integrity_check so that it can detect that a NOT NULL column contains a NaN value and report that as an error. (check-in: fbc27e18 user: drh tags: branch-3.41) | |
| 11:38 | • Edit [242cb36c3bd01922|242cb36c]: Mark "Closed". Edit check-in comment. (artifact: 05cc7426 user: drh) | |
| 11:36 | Enhance PRAGMA integrity_check so that it can detect that a NOT NULL column contains a NaN value and report that as an error. dbsqlfuzz f144b642fe6f1a1c196f258ac6e60118a0cb59b2. (check-in: 7638d975 user: drh tags: trunk) | |
| 00:05 | Modify the OP_IsType opcode so that it does not need to distinguish between NaN and other floating point values. Later: This branch causes an unnecessary slowdown of PRAGMA integrity_check. Check-in [7638d9755dc90fd3] does a better job of detecting when a NaN value occurs in a NOT NULL column. (Closed-Leaf check-in: 242cb36c user: drh tags: istype-opcode-refactor) | |
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2023-03-28
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| 16:13 | Fix a weird corner case in aggregate function processing that results from the recent addition of support for index expressions on aggregate queries. (check-in: 36fd948e user: drh tags: branch-3.41) | |
| 16:02 | Fix a weird corner case in aggregate function processing that results from the recent addition of support for index expressions on aggregate queries. Forum post bad532820c. (check-in: c34fd9fe user: drh tags: trunk) | |
| 11:21 | Fix multiple problems with RETURNING on a DML statement against a view. (1) Do not allow a RETURNING clause to trick the code generator into thinking that the view being updated has an INSTEAD OF trigger. (2) Generate all result columns for a view in a DML statement. (3) The automatic covering index for a view should cover all result columns of the view. (check-in: b49816fc user: drh tags: branch-3.41) | |
| 11:18 | Fix multiple problems with RETURNING on a DML statement against a view, all inspired by forum post dc3b92cfa0. (1) Do not allow a RETURNING clause to trick the code generator into thinking that the view being updated has an INSTEAD OF trigger. (2) Generate all result columns for a view in a DML statement. (3) The automatic covering index for a view should cover all result columns of the view. (check-in: c8bedef0 user: drh tags: trunk) | |
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2023-03-27
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| 13:27 | Do not allow constant factoring during PRAGMA integrity_check, since the constants might be stored in registers that are later reused for other purposes. (check-in: a4b5f499 user: drh tags: branch-3.41) | |
| 13:24 | Do not allow constant factoring during PRAGMA integrity_check, since the constants might be stored in registers that are later reused for other purposes. dbsqlfuzz dc9ab26037cf5ef797d28cd1ae0855ade584216d. Problem discovered by a new assert() statement added in [6f8b97f31a4c8552]. (check-in: 0bba27b7 user: drh tags: trunk) | |
| 13:10 | Improvements to register allocation, especially in the ANALYZE command. New assert() statements added to help verify that memory allocation is correct, and to help fuzzer find lingering errors. (check-in: 636f6fad user: drh tags: branch-3.41) | |
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2023-03-26
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| 16:36 | Improvements to register allocation, especially in the ANALYZE command. New assert() statements added to help verify that memory allocation is correct, and to help fuzzer find lingering errors. (check-in: 6f8b97f3 user: drh tags: trunk) | |
| 11:54 | Disable factoring of constant values during ANALYZE. This is a temporary fix for forum post 07de5f6216. The register allocation logic in ANALYZE needs to be completely refactored, but that will take longer. This check-in will serve to resolve the issue until a better fix can be devised. (check-in: c3967d12 user: drh tags: trunk) | |
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2023-03-25
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| 23:56 | When the left table of a RIGHT JOIN is used inside an aggregate function and the left table employs an index on expressions, then make sure the expressions evaluate to NULL for the cases where the left table should be NULL. (check-in: c51df77e user: drh tags: branch-3.41) | |
| 23:52 | When the left table of a RIGHT JOIN is used inside an aggregate function and the left table employs an index on expressions, then make sure the expressions evaluate to NULL for the cases where the left table should be NULL. Fix for forum post 9b491e1deb. (check-in: ffe23af7 user: drh tags: trunk) | |
| 23:40 | Add usage detection to the NULL value generator for the left table of a RIGHT JOIN inside of an aggregate. (Closed-Leaf check-in: 4d05a009 user: drh tags: rightjoin-agg-idxexpr) | |
| 22:42 | When reading sqlite_stat4 data during query planning, be sure to expand zeroblobs prior to running comparisons. (check-in: 60f4d19d user: drh tags: branch-3.41) | |
| 22:37 | When reading sqlite_stat4 data during query planning, be sure to expand zeroblobs prior to running comparisons. Fix for the issue identified by forum post 5275207102. (check-in: 5c8dd8df user: drh tags: trunk) | |
| 21:02 | • Edit [3572b40a7dfc4acc|3572b40a]: Move to branch rightjoin-agg-idxexpr. (artifact: 6653e010 user: drh) | |
| 21:01 | When the left table of a RIGHT JOIN is used inside an aggregate function and the left table employs an index on expressions, then make sure the expressions evaluate to NULL for the cases where the left table should be NULL. Proposed fix for forum post 9b491e1deb. More testing an analysis needed - there is a FIXME in this check-in. (check-in: 3572b40a user: drh tags: rightjoin-agg-idxexpr) | |
| 19:46 | In the byte-code generator, when the result of an expression needs to be in a particular register, always use the sqlite3ExprCode() routine because it has the smarts to know whether to use OP_Copy or OP_SCopy. Do not try to OP_SCopy inline because an OP_Copy might be required. (check-in: 2d439ccc user: drh tags: branch-3.41) | |
| 19:45 | • Edit [c104e5c6eeb89575|c104e5c6]: Edit check-in comment. (artifact: 0b2f1125 user: drh) | |
| 19:44 | In the byte-code generator, when the result of an expression needs to be in a particular register, always use the sqlite3ExprCode() routine because it has the smarts to know whether to use OP_Copy or OP_SCopy. Do not try to OP_SCopy inline because an OP_Copy might be required. Fix for the problem identified by forum post 5522082cfc. (check-in: c104e5c6 user: drh tags: trunk) | |
| 18:41 | Add the tag-20230325-1 comment that was omitted from the prior check-in. (check-in: a13c01d0 user: drh tags: trunk) | |
| 18:33 | The fix at [13c8c60bb6b4447b] was incomplete in that it failed to clear the reusable register cache that might contain registers in the STAT4 buffer region. This additional change corrects the problem. (check-in: 671bf6f5 user: drh tags: branch-3.41) | |
| 18:31 | The fix at [2bf5413dc2c19d5f] was incomplete in that it failed to clear the reusable register cache that might contain registers in the STAT4 buffer region. This additional change corrects the problem. Forum post 83cb4a95a0. Test case in TH3. (check-in: 5d554e4d user: drh tags: trunk) | |
| 12:27 | Even tighter bounds on the maximum length of the filename for sqlite3_load_extension(). (check-in: 78729141 user: drh tags: trunk) | |
| 03:17 | Tighter constraints on the maximum length of the filename handed over to sqlite3_load_extension(), due to forum post a43074729e. This is a follow-on to [01f3877c7172d522] and forum post 08a0d6d9bf. (check-in: 9f351bde user: drh tags: trunk) | |
| 02:07 | New test case to further validate the fix at [221fdcec964f8317]. Forum post d34ad68c36. (check-in: a6e218a6 user: drh tags: trunk) | |
| 02:02 | Fix a problem in cursor-hints for WITHOUT ROWID tables. (check-in: fc8ec188 user: drh tags: branch-3.41) | |
| 01:50 | Fix CLI non-handling of OOM. (check-in: 44c76f00 user: drh tags: branch-3.41) | |
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2023-03-24
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| 22:24 | Remove undocumented, vestigial SQL functions in the CLI that were once used for the ".recover" command but are now no longer needed. This is a fix for the problem described by forum post be9c294ee0. (check-in: 74d14900 user: drh tags: branch-3.41) | |
| 22:17 | Remove undocumented, vestigial SQL functions in the CLI that were once used for the ".recover" command but are now no longer needed. (check-in: 1ef461aa user: drh tags: trunk) | |
| 21:35 | Fix possible integer overflow in bounds checking for the debugging function "shell_int32()" found in the CLI. This change does not affect the core SQLite. Forum post be9c294ee0. (check-in: 62114711 user: drh tags: trunk) | |
| 21:27 | Fix an error in the OP_SeekScan opcode. (check-in: b95e6933 user: drh tags: branch-3.41) | |
| 21:24 | Fix an error in the OP_SeekScan opcode added by check-in [4a43430fd23f8835]. Problem reported by forum post 8cc1dc0fe9. (check-in: 651a13fc user: drh tags: trunk) | |
| 20:41 | Increase the version number to 3.41.3. (check-in: 9a19c6ce user: drh tags: branch-3.41) | |
| 20:39 | Fix the handling of indexed expressions in an outer query that appear as corelated values inside an aggregate function within a subquery. (check-in: 76b90f26 user: drh tags: branch-3.41) | |
| 20:35 | Fix the handling of indexed expressions in an outer query that appear as corelated values inside an aggregate function within a subquery. Forum post 79cf371080. (check-in: d8259877 user: drh tags: trunk) | |
| 19:17 | Fix a problem in cursor-hints for WITHOUT ROWID tables used in a RIGHT JOIN. Forum post 591006b1cc. (check-in: 221fdcec user: drh tags: trunk) | |
| 17:11 | • Edit [2bf5413dc2c19d5f|2bf5413d]: Edit check-in comment. (artifact: 3eabb0b9 user: drh) | |
| 17:01 | Fix byte-code register allocation in ANALYZE for STAT4 when there multiple indexes with differing numbers of columns. (check-in: 13c8c60b user: drh tags: branch-3.41) | |
| 16:57 | Fix byte-code register allocation in ANALYZE for STAT4 when there multiple indexes with differing numbers of columns. forum post bc39e531e5. This problem arose when expression indexes were added by check-in [2131a5ca53f0e9b0]. (check-in: 2bf5413d user: drh tags: trunk) | |
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2023-03-23
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| 19:22 | Fix test cases so that they work when SQLITE_ENABLE_NAN_INF is defined. (check-in: 95c7af79 user: drh tags: nan-inf) | |
| 12:00 | Fix #ifdefs that use the wrong preprocessor macro. (check-in: 0aecf360 user: drh tags: nan-inf) | |
| 10:58 | The attempt to bring STAT4 up to 100% MC/DC at [55a26c67ed4a3a93] and at [168fa2fb22b8c1ad] are incorrect. Back them out and replace them with a simple NEVER() macro. Error reported by forum post dc4854437b. (check-in: 76e683c5 user: drh tags: branch-3.41) | |
| 10:54 | The attempt to bring STAT4 up to 100% MC/DC at [55a26c67ed4a3a93] and at [168fa2fb22b8c1ad] are incorrect. Back them out and replace them with a simple NEVER() macro. Error reported by forum post dc4854437b. (check-in: 5992370a user: drh tags: trunk) | |
| 10:21 | • Edit [168fa2fb22b8c1ad|168fa2fb]: Edit check-in comment. (artifact: 4057d8fc user: drh) | |
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2023-03-22
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| 20:21 | Add the SQLITE_ENABLE_NAN_INF compile-time option which makes the following behavior changes: (1) sqlite3_value_double(NULL) returns NaN, (2) SQLite preserves NaN values rather than converting them to NULL. (3) CAST statements understand "NaN" and "Inf" and make the right conversions. (4) Non-standard JSON is never generated by SQLite JSON routines, but those routines will accept floating point literals "NaN", "Inf", and "-Inf". (check-in: 96ec8306 user: drh tags: nan-inf) | |
| 16:55 | The floating-point-to-text conversion with the zero-padding option now renders NaN as "null". (check-in: ad59fa17 user: drh tags: trunk) | |
| 16:37 | For consistency, the ".mode json" output from the CLI now renders infinity in the same format as the JSON functions. (check-in: abee339d user: drh tags: trunk) | |
| 16:24 | The double-to-text conversion renders infinity as 9e999, so that JSON output is compliant and so that values can be round-tripped. (check-in: b52081d0 user: drh tags: trunk) | |
| 16:01 | In the CLI, the magic parameter :inf and :nan bind floating point values Infinity and NaN, respectively, as an aid to testing SQLite's handling of those quantities. (check-in: c70a61d8 user: drh tags: trunk) | |
| 14:51 | Update the version number for the TEA tarball to 3.42.0, to match the core. (check-in: 03e6918e user: drh tags: trunk) | |
| 13:47 | Merge the 3.41.2 patch into the reuse-schema-3.41 subbranch of reuse-schema (Leaf check-in: 995fa4d0 user: drh tags: reuse-schema-3.41) | |
| 13:35 | Merge the 3.41.2 patches into the bedrock-3.41 subbranch of bedrock. (Leaf check-in: b7a144c4 user: drh tags: bedrock-3.41) | |
| 13:25 | Merge the 3.41.2 patch into the wal2-3.41 subbranch of wal2. (Leaf check-in: db44f17a user: drh tags: wal2-3.41) | |
| 11:56 | Version 3.41.2 (check-in: 0d1fc92f user: drh tags: release, version-3.41.2, branch-3.41) | |
| 11:12 | Increment the version number in the TEA configure script to 3.41.2. (check-in: 2bb74aa5 user: drh tags: branch-3.41) | |
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2023-03-21
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| 14:20 | Add ALWAYS() on a branch this is always true now due to [84417bbd144b2197]. (check-in: badf7d0e user: drh tags: trunk) | |
| 12:29 | Add the fuzzcheck-asan.exe target to the MSVC makefile. (check-in: 0901bc02 user: drh tags: trunk) | |
| 11:56 | Add the fuzzcheck-asan target to the main posix makefile. (check-in: 55e94add user: drh tags: trunk) | |
| 11:27 | Fix a valgrind error and potential buffer overread when handling a corrupt database. (check-in: cb8b34fa user: drh tags: branch-3.41) | |
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2023-03-20
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| 22:49 | • Edit [3065dadb3ec31313|3065dadb]: Move to branch backout. Mark "Closed". Edit check-in comment. (artifact: e1328ec6 user: drh) | |
| 20:22 | Reinsert two NEVER() macros for b-tree branches that were previously needed for [b6a82f3c3b9d89fd] but which are now obsolete due to [73f0036f045bf371]. Later: dbsqlfuzz quickly found new cases for which those two branches are needed. The new test cases have been added to TH3. (Closed-Leaf check-in: 3065dadb user: drh tags: backout) | |
| 18:35 | Minor change to btreeNext() to facilitate coverage testing. (check-in: 20b3ef04 user: drh tags: trunk) | |
| 15:50 | Fix a problem causing a cursor to retain an out-of-date cell-info cache when processing a DISTINCT query on values that are identical according to their collation sequence, but different on disk. (check-in: b0281184 user: drh tags: branch-3.41) | |
| 10:43 | Back out the extra margin added to the input buffer of the CLI, as it is not needed. (check-in: ac8d1e5d user: drh tags: trunk) | |
| 01:59 | Fix problems with the sqlite3_error_offset() function and its use in the CLI. (check-in: d5cd6c88 user: drh tags: branch-3.41) | |
| 01:55 | A better fix for the sqlite3_error_offset() problem on generated columns. (check-in: 770b3e67 user: drh tags: trunk) | |
| 01:33 | • Fixed ticket [33aa4c0d]: Heap buffer overflow on SQL input plus 4 other changes (artifact: e15b6d38 user: drh) | |
| 00:53 | Expression errors in generated columns should not generate non-negative sqlite3_error_offset() returns. Second of two defenses against [33aa4c0de8a62e33]. (check-in: 2adb4e0d user: drh tags: trunk) | |
| 00:48 | When reporting errors in the CLI, ignore the output of sqlite3_error_offset() if the value returned is clearly out-of-range. One of two lines of defense against [33aa4c0de8a62e33]. (check-in: 26adbb80 user: drh tags: trunk) | |
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2023-03-19
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| 23:38 | • Open ticket [33aa4c0d]: Heap buffer overflow on SQL input plus 6 other changes (artifact: ffd764b4 user: drh) | |
| 21:53 | Increase the size of ref-count values in the pager layer to 64-bits, to avoid any reasonable possiblity of overflowing the counters. (check-in: 824611ad user: drh tags: branch-3.41) | |
| 21:48 | Increase the size of ref-count values in the pager layer to 64-bits, to avoid any reasonable possiblity of overflowing the counters. There is a performance and memory penality for this. Forum post b741f15a35. (check-in: 6c5d99a8 user: drh tags: trunk) | |
| 10:30 | Avoid a buffer overread in fts3 that could occur when processing a corrupt record. (check-in: 1f91fe4b user: drh tags: branch-3.41) | |
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2023-03-17
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| 20:31 | Fix json rendering so that it shows positive and negative infinity as 9.0e+999 and -9.0e+999 respectively. (Closed-Leaf check-in: efce4690 user: drh tags: numeric-only-json) | |
| 19:18 | Add the ability to name functions using one of the join keywords like CROSS FULL INNER LEFT NATURAL OUTER RIGHT. (check-in: 0910b192 user: drh tags: trunk) | |
| 19:07 | Add test cases for functions named the same as join keywords. (Closed-Leaf check-in: 94944b23 user: drh tags: functions-named-left) | |
| 12:25 | Ensure that an error does not delete the Table object out from under the xConstruct method of a virtual table. dbsqlfuzz 7cc8804a1c6d4e3d554d79096e6ea75a7c1c7d2d (check-in: c5bd0ea3 user: drh tags: branch-3.41) | |
| 10:43 | Ensure that an error does not delete the Table object out from under the xConstruct method of a virtual table. dbsqlfuzz 7cc8804a1c6d4e3d554d79096e6ea75a7c1c7d2d (check-in: df4928c9 user: drh tags: trunk) | |
| 10:30 | Increase the version number to 3.41.2 (check-in: 122f12f5 user: drh tags: branch-3.41) | |
| 00:46 | • Fixed ticket [4f19d727]: Heap buffer overflow on SQL input (4) plus 8 other changes (artifact: 9f194f51 user: drh) | |
| 00:45 | • Fixed ticket [2971fbe3]: Heap buffer overflow on SQL input (3) plus 8 other changes (artifact: bf582baa user: drh) | |
| 00:45 | • Fixed ticket [b97e6c5e]: Heap buffer overflow on SQL input (2) plus 5 other changes (artifact: dae3d93d user: drh) | |
| 00:44 | • Fixed ticket [33aa4c0d]: Heap buffer overflow on SQL input plus 7 other changes (artifact: 33ab54ec user: drh) | |
| 00:42 | Add safety margin on the CLI input buffer for tickets [33aa4c0de8a62e33], [b97e6c5e6a91d97f], [2971fbe3f993e95a], and [2971fbe3f993e95a]. (check-in: 741af08a user: drh tags: trunk) | |
| 00:10 | Fix assert() statements that would (incorrectly) fire if an IF NOT EXISTS trigger that already exists contained two or more RETURNING clauses. (check-in: 9b43b34d user: drh tags: branch-3.41) | |
| 00:04 | • Fixed ticket [89d259d4]: Assertion fault on SQL input (2) plus 7 other changes (artifact: c0aca9b7 user: drh) | |
| 00:03 | • Fixed ticket [d15b3a4e]: Assertion fault on SQL input plus 7 other changes (artifact: 211c7800 user: drh) | |
| 00:01 | Fix assert() statements that would (incorrectly) fire if an IF NOT EXISTS trigger that already exists contained two or more RETURNING clauses. Tickets [89d259d45b855a0d] and [d15b3a4ea901ef0d]. (check-in: 648899e4 user: drh tags: trunk) | |
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2023-03-16
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| 21:05 | Correctly handle SELECT DISTINCT ... ORDER BY when all of the result set terms are constant and there are more result set terms than ORDER BY terms. (check-in: 097512b6 user: drh tags: branch-3.41) | |
| 21:03 | • Fixed ticket [d6fd512f]: Segfault on SQL input (3) plus 6 other changes (artifact: d6898bc5 user: drh) | |
| 21:02 | • Fixed ticket [4051a7f9]: Segfault on SQL input (2) plus 6 other changes (artifact: 802d2885 user: drh) | |
| 21:01 | • Fixed ticket [c36cdb4a]: Segfault due to SQL inputs plus 6 other changes (artifact: 5a92b32c user: drh) | |
| 20:54 | Correctly handle SELECT DISTINCT ... ORDER BY when all of the result set terms are constant and there are more result set terms than ORDER BY terms. Fix for these tickets: [c36cdb4afd504dc1], [4051a7f931d9ba24], [d6fd512f50513ab7]. (check-in: 12ad822d user: drh tags: trunk) | |
| 20:35 | • Ticket [b97e6c5e] Heap buffer overflow on SQL input (2) status still Open with 6 other changes (artifact: d0fee4a6 user: drh) | |
| 20:30 | • New ticket [d6fd512f] Segfault on SQL input (3). (artifact: e936e0bf user: drh) | |
| 20:29 | • New ticket [4051a7f9] Segfault on SQL input (2). (artifact: 9c59650e user: drh) | |
| 20:28 | • New ticket [c36cdb4a] Segfault due to SQL inputs. (artifact: f56af9e7 user: drh) | |
| 20:27 | • New ticket [4f19d727] Heap buffer overflow on SQL input (4). (artifact: e6541a76 user: drh) | |
| 20:26 | • New ticket [2971fbe3] Heap buffer overflow on SQL input (3). (artifact: abd0366d user: drh) | |
| 20:25 | • New ticket [b97e6c5e] Heap buffer overflow on SQL input (2). (artifact: cf680359 user: drh) | |
| 20:23 | • New ticket [33aa4c0d] Heap buffer overflow on SQL input. (artifact: 23d642d6 user: drh) | |
| 20:22 | • New ticket [89d259d4] Assertion fault on SQL input (2). (artifact: 96d64a25 user: drh) | |
| 20:19 | • New ticket [d15b3a4e] Assertion fault on SQL input. (artifact: f61bb278 user: drh) | |
| 12:28 | Additional debug/test output from the query invariant checker showing the row-number that is being checked. (check-in: e4b6eb58 user: drh tags: trunk) | |
| 11:50 | Update the tracing output for the query-invariant checker such that it shows the SQL that is run to verify that a found query-invariant discrepency is valid. Changes to testing logic only. (check-in: 8f45ad27 user: drh tags: trunk) | |
| 10:21 | Do not use the one-pass optimization on an UPDATE if there is a subquery in the WHERE clause, since if the subquery is hidden behind a short-circuit operator, the subquery might not be evaluated until after one or more rows have been updated. (check-in: b5d8a9a6 user: drh tags: branch-3.41) | |
| 10:17 | Do not use the one-pass optimization on an UPDATE if there is a subquery in the WHERE clause, since if the subquery is hidden behind a short-circuit operator, the subquery might not be evaluated until after one or more rows have been updated. Fix for the problem reported by forum post 0007d1fdb1. This is the same problem that was fixed by [73f0036f045bf371] only for UPDATE instead of DELETE. (check-in: 2c56b984 user: drh tags: trunk) | |
| 09:17 | • Edit [ba964eb0f3dac957|ba964eb0]: Mark "Closed". (artifact: 6d87b3d8 user: drh) | |
| 09:16 | Remove a NEVER() from btreeNext(). (check-in: 40623f5a user: drh tags: branch-3.41) | |
| 09:12 | Fix a broken assert() in the recovery extension. (check-in: 048711e4 user: drh tags: branch-3.41) | |
| 09:07 | Remove a NEVER() from btreeNext() that dbsqlfuzz 460aa158f9a2c41145831cc924296cde1f312b3f found could sometimes be reached. I will find a way to test that branch later. (check-in: 1dffeffe user: drh tags: trunk) | |
| 02:30 | Another approach at attempting to contain the damage caused by corruption that leaves MemPage.isInit clear. Works better than the previous but is still not perfect. (Closed-Leaf check-in: ba964eb0 user: drh tags: corruption-in-btree-init) | |
| 01:34 | • Edit [44e83f8b8fab5b46|44e83f8b]: Move to branch corruption-in-btree-init. (artifact: 25537d8c user: drh) | |
| 01:20 | When the btreeInitPage() routine detects database corruption, it should continue to the end and set MemPage.isInit before it returns SQLITE_CORRUPT, because if it leaves MemPage.isInit unset, then can cause difficulty later. dbsqlfuzz 460aa158f9a2c41145831cc924296cde1f312b3f (check-in: 44e83f8b user: drh tags: corruption-in-btree-init) | |
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2023-03-15
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| 18:05 | Disallow the one-pass optimization for DELETE if the WHERE clause contains a subquery. (check-in: 25e18318 user: drh tags: branch-3.41) | |
| 17:58 | Disallow the one-pass optimization for DELETE if the WHERE clause contains a subquery. Fix for the problem reported by forum post e61252062c9d286d. This fix is more restrictive than necessary. It could be relaxed if the subquery does not involve the table that is the subject of the DELETE. (check-in: 73f0036f user: drh tags: trunk) | |
| 00:57 | • Edit [c028fb669a5ae34d|c028fb66]: Edit check-in comment. (artifact: 32ffa4b3 user: drh) | |
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2023-03-14
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| 20:16 | Fix Bloom filters on an expression index. (check-in: 11e0256b user: drh tags: branch-3.41) | |
| 20:08 | Fix Bloom filters on an expression index. forum post 2e427099d5 and forum post d47a0e8e3a. This problem goes back to the original introduction of Bloom filters (check-in [633bfeeea2bccdd4]) for SQLite version 3.38.0. (check-in: c028fb66 user: drh tags: trunk) | |
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2023-03-11
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| 23:29 | The cherry-pick merge at [371838562a675c1b] caused a performance regression for some queries, which is here fixed. (check-in: 6d6d95fc user: drh tags: branch-3.41) | |
| 23:21 | The check-in at [198b3e33dcfd74c7] caused a performance regression for some queries, which is here fixed. Problem reported by forum post b405033490fa56d9. (check-in: dc9f025d user: drh tags: trunk) | |
| 12:27 | Allow functions named using keywords "CROSS", "FULL", "INNER", "LEFT", "NATURAL", "OUTER", and "RIGHT". (check-in: eeac3d5e user: drh tags: functions-named-left) | |
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2023-03-10
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| 21:27 | Fix a typo in a comment. No code changes. (check-in: 76acc075 user: drh tags: trunk) | |
| 20:23 | • New ticket [667014c2] Missed optimization when LHS of IN is an expression. (artifact: e3c39d98 user: drh) | |
| 12:47 | Merge the 3.41.1 patches into the bedrock branch. (check-in: 2780cc9f user: drh tags: bedrock-3.41) | |
| 12:13 | Version 3.41.1 (check-in: 20399f3e user: drh tags: release, version-3.41.1, branch-3.41) | |
| 00:59 | Merge the branch-3.41 patches into the reuse-schema branch. (check-in: af08bd3e user: drh tags: reuse-schema-3.41) | |
| 00:21 | Merge the latest 3.41 patches into a new branch called wal2-3.41. (check-in: e67bfc76 user: drh tags: wal2-3.41) | |
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2023-03-09
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| 16:04 | In the Bloom filter optimization, hash all strings and blobs into the same value, because we do not know if two different strings might compare equal even if they have different byte sequences, due to collating functions. Formerly, the hash of a string or blob was just its length. This could all be improved. (check-in: cc8a0ee4 user: drh tags: branch-3.41) | |
| 14:14 | Update the version number to 3.41.1 (check-in: e4e2e647 user: drh tags: branch-3.41) | |
| 13:58 | Merge count-of-view optimization fixes from trunk. But count-of-view is still off by default for this branch. (check-in: cbbe8986 user: drh tags: branch-3.41) | |
| 01:35 | Fix a possible NULL pointer dereference due to the sqlite3_interrupt() enhancement in the 3.41.0 release. (check-in: 66d24a22 user: drh tags: branch-3.41) | |
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2023-03-08
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| 23:05 | Fix a possible NULL pointer dereference due to the sqlite3_interrupt() enhancement at [bd8fa10e59f58886]. Reported by forum post f5a2b1db87. (check-in: 84417bbd user: drh tags: trunk) | |
| 22:48 | Backout the OP_MakeRecord optimization as it does not work. (check-in: 25017312 user: drh tags: trunk) | |
| 17:09 | Small performance improvement in the OP_MakeRecord opcode. (check-in: ca89daef user: drh tags: trunk) | |
| 14:37 | Keep the historical datatype ("INT", not "NUM") for a table created as follows: "CREATE TABLE t1 AS SELECT CAST(123 AS INT) AS value;". The use of FLEXNUM only occurs on compound queries. (check-in: dc1033af user: drh tags: branch-3.41) | |
| 14:28 | Change to [44135d6ea84f7ba6] that retains the historical datatype ("INT", not "NUM") for a table created as follows: "CREATE TABLE t1 AS SELECT CAST(123 AS INT) AS value;". The use of FLEXNUM only occurs on compound queries. (check-in: 6d5b5896 user: drh tags: trunk) | |
| 00:47 | Fix a problem in the count-of-view optimization that can lead to incorrect bytecode. dbsqlfuzz 23d782160b71c3f8f535ccb2da313dfc8eb8c631. (check-in: f4500953 user: drh tags: trunk) | |
| 00:04 | Fix an assertion fault added by [65ffee234787213c]. (check-in: d00e68ba user: drh tags: branch-3.41) | |
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2023-03-07
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| 23:47 | Fix a bug introduced 4 days ago by [e95439119ac200cb]: do not set the Expr.affExpr field of a generated column expression if the expression is a RAISE() function, as affExpr has a different meaning for RAISE. Forum post b312e075b5. (check-in: 1096b5a7 user: drh tags: trunk) | |
| 19:39 | A proposed change to [44135d6ea84f7ba6] that retains the historical datatype ("INT", not "NUM") for a table created as follows: "CREATE TABLE t1 AS SELECT CAST(123 AS INT) AS value;". (Closed-Leaf check-in: a0e54fe2 user: drh tags: flexnum-proposed-fix) | |
| 19:34 | • Added wiki page "checkin/44135d6ea84f7ba6b36549954b38a8bc048d5ffea5a9779e35950afa4eb2dfb2" (artifact: 5835e262 user: drh) | |
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2023-03-06
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| 23:39 | Repair an unintential fork. (check-in: 8b524c84 user: drh tags: trunk) | |
| 23:38 | Improvements to query invariant testing such that it uses the new SQLITE_DBCONFIG_REVERSE_SCANORDER opcode to sqlite3_db_config() to make more accurate judgements about when a query is ambiguous, and hence when query invariant testing is approprate. (check-in: be9ab292 user: drh tags: trunk) | |
| 19:04 | Add SQLITE_DBCONFIG_REVERSE_SCANORDER for direct C-language access to the "PRAGMA reverse_unordered_selects" setting. (check-in: 83e84531 user: drh tags: trunk) | |
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2023-03-04
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| 15:49 | Cherry-pick the agg-with-indexed-expr optimization fix from trunk. (check-in: b2ad89d3 user: drh tags: branch-3.41) | |
| 15:36 | Fix to check-in [b9190d3da70c4171] - the agg-with-indexed-expr optimization requested by ticket [99378177930f87bd] - that can cause an incorrect answer if an aggregate subquery has a GROUP BY clause, and that GROUP BY contains a term that is not in the result set, and the outer query makes use of expression indexes. Problem reported by forum post a68313d054. (check-in: e0697387 user: drh tags: trunk) | |
| 12:57 | Show the output value from OP_AggFinal when doing byte-code tracing. (check-in: 35f10a06 user: drh tags: trunk) | |
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2023-03-03
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| 20:53 | • Edit [0fc7f7c2a90ce9bc|0fc7f7c2]: Edit check-in comment. (artifact: b3b9fed9 user: drh) | |
| 20:52 | • Edit [cc4bb05b3653e950|cc4bb05b]: Edit check-in comment. (artifact: 713bc672 user: drh) | |
| 19:56 | Fix a vdbe-coverage macro added by [f418bdd627e84e7d]. (check-in: 77f559d2 user: drh tags: trunk) | |
| 19:47 | Do not use an expression index on a generated column if generated column has the wrong affinity. (check-in: 65ffee23 user: drh tags: branch-3.41) | |
| 19:43 | Follow-up to [e95439119ac200cb] to fix a case where a pointer is NULL due to OOM. (check-in: 2535bc8c user: drh tags: trunk) | |
| 18:47 | Enhance PRAGMA integrity_check so that it can detect when there are extra bytes at the end of an index record, which might cause OP_IdxRowid to malfunction. (check-in: c143f087 user: drh tags: branch-3.41) | |
| 18:35 | Enhance PRAGMA integrity_check so that it can detect when there are extra bytes at the end of an index record, which might cause OP_IdxRowid to malfunction. dbsqlfuzz c1aa3986534d5feab8d21f28b3c1712df2ef358ba. Test case in TH3. (check-in: f418bdd6 user: drh tags: trunk) | |
| 17:11 | Cherrypick the "(X IS [NOT] NULL)" fix from trunk onto branch-3.41. (check-in: 0fc7f7c2 user: drh tags: branch-3.41) | |
| 17:06 | • Edit [cc4bb05b3653e950|cc4bb05b]: Edit check-in comment. (artifact: 7296848a user: drh) | |
| 15:12 | Do not use an expression index on a generated column if generated column has the wrong affinity. dbsqlfuzz 65f5eb57f8859344d5f1f33e08c77ee12960ed83 (check-in: e9543911 user: drh tags: trunk) | |
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2023-03-02
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| 14:09 | When flattening the right operand of a LEFT JOIN, ensure that the OP_IfNullRow opcode does not NULL-out a subquery result that was computed within OP_Once. (check-in: c80b262c user: drh tags: branch-3.41) | |
| 13:49 | When flattening the right operand of a LEFT JOIN (check-in [41c27bc0ff1d3135]), ensure that the OP_IfNullRow opcode does not NULL-out a subquery result that was computed within OP_Once. This fixes the problem problem reported by forum post 402f05296d. (check-in: 8fe13f7a user: drh tags: trunk) | |
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2023-03-01
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| 20:44 | When flattening a view that is the right operand of a LEFT JOIN always insert the TK_IF_NULL_ROW expression nodes, even for TK_COLUMN expressions, as the TK_COLUMN might be a column from an outer query and hence still need to be NULLed out. (check-in: 37183856 user: drh tags: branch-3.41) | |
| 20:23 | When flattening a view that is the right operand of a LEFT JOIN, using the optimization of check-in [41c27bc0ff1d3135], always insert the TK_IF_NULL_ROW expression nodes, even for TK_COLUMN expressions, as the TK_COLUMN might be a column from an outer query and hence still need to be NULLed out. This fixes the problem described by forum post 26387ea7ef. (check-in: 198b3e33 user: drh tags: trunk) | |
| 15:28 | Make sure subtypes do not cross a subquery boundary even if the function that returned the value with a subtype is buried down inside a larger expression. (check-in: 9dc46031 user: drh tags: branch-3.41) | |
| 15:21 | Follow-up to [bbaf1f2eb1e1637b]: Make sure subtypes do not cross a subquery boundary even if the function that returned the value with a subtype is buried down inside a larger expression. This fixes a problem identified by forum post 37dd14a538. (check-in: e72661eb user: drh tags: trunk) | |
| 13:54 | Do not attempt to apply the count-of-view optimization to a CTE. dbsqlfuzz ef8623915d843b150c159166ee4548c78cc6895a (check-in: abc3a383 user: drh tags: trunk) | |