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100 check-ins occurring around 8cc23931.
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2021-06-14
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| 12:23 | Update this branch with latest trunk changes. (check-in: d8199634 user: dan tags: begin-concurrent) | |
| 11:20 | Avoid allocating oversized column names in the sqllimit1.test module. (check-in: 7068f1f6 user: drh tags: trunk) | |
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2021-06-13
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| 19:14 | The opcode that preceeds OP_SeekScan is usually OP_IdxGT but can sometimes be OP_IdxGE. Adjust asserts accordingly. Follow-up to [9a2ab6092d644fc3]. dbsqlfuzz e41762333a4d6e90a49e628f488d0873b2dba4c5 (check-in: d6803ed8 user: drh tags: trunk) | |
| 17:55 | Improved defense against OOM errors in sqliteInitOne(). dbsqlfuzz 429db39cd5777c46479641e8637c48c62890042d (check-in: b6c57e0e user: drh tags: trunk) | |
| 08:23 | Correct link in .ar help. (check-in: de9d0f95 user: larrybr tags: trunk) | |
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2021-06-12
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| 18:12 | The sqlite3WithPush() routine might destroy its second argument if there was a prior OOM. Do not use the second argument of sqlite3WithPush() if this happens. (check-in: baa3f962 user: drh tags: trunk) | |
| 17:45 | An alternative approach to the use-after-free problem. (Closed-Leaf check-in: 6796b7a2 user: drh tags: alternative-oom-fix) | |
| 16:17 | Fix a use-after-free that could follow an OOM in ALTER TABLE. (Edit:) Still contains problems. (Closed-Leaf check-in: 193b14a5 user: dan tags: original-uaf-fix) | |
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2021-06-11
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| 13:18 | Reapply two recent ALTER TABLE error checks that turned out to be necessary after all. dbsqlfuzz fc5a9deefda00dda914748985155a6d4c44174e5. (check-in: 230fedd9 user: drh tags: trunk) | |
| 12:41 | Avoid bugs in some implementations of dlopen() by avoiding calls to dlopen() with a filename argument that exceeds FILENAME_MAX bytes. Forum post 08a0d6d9bf. (check-in: 01f3877c user: drh tags: trunk) | |
| 12:14 | Fix a crash in new ALTER TABLE code that could follow an OOM. (check-in: 6f1f2a0a user: dan tags: trunk) | |
| 12:02 | Remove an unreachable branch added by the previous commit. (check-in: 852ee0e9 user: dan tags: trunk) | |
| 11:14 | Fix problems with ALTER TABLE and schemas that contain views with some recursive CTEs, or CTEs that reference other CTEs. Forum post 9d965f2956. (check-in: 8b1f9a51 user: dan tags: trunk) | |
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2021-06-10
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| 19:37 | Fix an assert() added by the previous commit that could fail with some database schemas. (Closed-Leaf check-in: 5079b5d5 user: dan tags: alter-table-cte-fix-1) | |
| 19:08 | Fix problems with ALTER TABLE and schemas that contain views with complex CTEs. (check-in: 32e3ecfc user: dan tags: alter-table-cte-fix-1) | |
| 14:36 | Improved robustness following OOM in the constant propagation optimization. dbsqlfuzz 001a20255c0df7495c21df62a20ea5b51e22c390. (check-in: 8658a64d user: drh tags: trunk) | |
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2021-06-09
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| 14:45 | Set the database connection error code for an oversize argument to sqlite3_bind_blob64() or sqlite3_bind_text64(). Forum post a636276f0d451667 and 33821c8db543c. (check-in: 56ff58c0 user: drh tags: trunk) | |
| 13:39 | Add defensive code to better handle corrupt records in fts5. (check-in: a99c29b5 user: dan tags: trunk) | |
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2021-06-08
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| 23:46 | Remove two assert()s in FTS5 that checks for database corruption right before actual code does the same check. dbsqlfuzz 9680db8f5338cb9b6060eb3a02d984555d4472e3. (check-in: f3f82967 user: drh tags: trunk) | |
| 17:56 | Try to avoid a double-free in the showdb utility program when running pgidx on a corrupt database. See forum post a60ea5a4d4 for context (check-in: e3188a86 user: drh tags: trunk) | |
| 12:22 | Add an assert() to prevent the value of the SQLITE_VTABRISK macros from being changed in a way that would break logic. (check-in: 33babdb5 user: drh tags: trunk) | |
| 12:15 | Avoid a buffer overread in fts3 that could occur when handling corrupt data structures. (check-in: 45f459d2 user: dan tags: trunk) | |
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2021-06-07
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| 17:36 | Fix a buffer overread that could occur in fts5 when handling corrupt records. (check-in: 078962a2 user: dan tags: trunk) | |
| 15:28 | Fix a buffer overrun in fts3 that could occur when handling corrupt records and '^' queries. (check-in: 9d0b6b0f user: dan tags: trunk) | |
| 14:21 | Add recent dbsqlfuzz test cases to test/fuzzdata8.db. (check-in: 16202200 user: drh tags: trunk) | |
| 13:50 | Avoid use of uninitialized memory while running defragmentPage() on a corrupt database file. dbsqlfuzz 4c45cecc0b255aaf2ea85453ccd17e814fd0b6b2 (check-in: 35e40d75 user: drh tags: trunk) | |
| 11:50 | Fix an assert() in the OP_ParseSchema opcode that might fail on a corrupt database file when running with PRAGMA writable_schema=ON. dbsqlfuzz e7d743ca65f2767e415095f0c5a49166a0f55eea. (check-in: 10801f65 user: drh tags: trunk) | |
| 00:54 | Remove unnecessary end-of-line whitespace from the regexp.c extension. (check-in: 17e26a1f user: drh tags: trunk) | |
| 00:41 | Omit the unnecessary highlighting of the security implications of SQLTIE_DIRECTONLY in the sqlite3_create_function() documentation. No changes to code. (check-in: 2aa9368b user: drh tags: trunk) | |
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2021-06-04
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| 23:26 | A better fix for the problem addressed by [4eb80b0cc61526c1]. This fix also avoids reading uninitialized variables. (check-in: 1c71de43 user: drh tags: trunk) | |
| 21:46 | Make MSVC build examples work when taken literally, and say when they do. (check-in: b53ca8ed user: larrybr tags: trunk) | |
| 17:47 | Improvements to the OP_SeekScan optimization. Added the SQLITE_TESTCTRL_TUNE test-control. (check-in: 9a2ab609 user: drh tags: trunk) | |
| 16:17 | Add the (missing) dependency of regexp.c to the shell.c rule in the makefiles. This dependency should have been added by [5d4535bfb603d7c8] but was missed. (check-in: c93be7e6 user: drh tags: trunk) | |
| 16:11 | Fix harmless compiler warnings. (check-in: 83aca2d8 user: drh tags: trunk) | |
| 15:56 | Fix more cases in the regexp extension where the 0x00 terminator at the end of the input string is being pattern matched. [forum/forumpost/9104f0d9e7|Forum post 9104f0d9e7]. (check-in: 569e00d4 user: drh tags: trunk) | |
| 13:40 | Revamp SQLITE_TESTCTRL_TUNE to provide visibility of current turning parameter values. (Closed-Leaf check-in: 677e645e user: drh tags: seekscan-improvements) | |
| 13:16 | Add support for SQLITE_TESTCTRL_TUNE and the ".testctrl tune ID VALUE" command in the CLI. (check-in: f1199d58 user: drh tags: seekscan-improvements) | |
| 12:29 | Merge recent trunk enchancements into the seekscan-improvements branch. (check-in: d9e85fe8 user: drh tags: seekscan-improvements) | |
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2021-06-03
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| 18:56 | Fix a case where combining row-value UPDATE FROM syntax with window functions over aggregates can cause an error. dbsqlfuzz ae4516bff08d736f203f09934e2f4d31e0b3e7ce (check-in: 4a587c34 user: dan tags: trunk) | |
| 18:51 | Fix the truncate optimization so that PRAGMA count_changes and changes() return correct values even for a WITHOUT ROWID table. Forum post 07dedbf9a1. (check-in: 820ae3b1 user: drh tags: trunk) | |
| 13:51 | Add the regexp() and regexpi() extension functions to the CLI. (check-in: 5d4535bf user: drh tags: trunk) | |
| 13:44 | Fix a bug in the regexp extension in which the "." wildcard would match the 0x00 terminator at the end of the comparison string. (check-in: fa23108b user: drh tags: trunk) | |
| 12:31 | Fix the case-insensitive version of the regexp() function so that it does not use the prefix optimization incorrectly. Forum post 983b43ef8e. (check-in: 1a8e43cc user: drh tags: trunk) | |
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2021-06-02
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| 19:28 | Add an optimization control bit to disable the OP_SeekScan optimization. (check-in: f674c41e user: drh tags: seekscan-improvements) | |
| 18:50 | Fix an ALWAYS which can be false. (check-in: a87f8ecd user: drh tags: seekscan-improvements) | |
| 17:32 | Tighten assert() restrictions on the OP_SeekScan opcode. (check-in: dbc33d3a user: drh tags: seekscan-improvements) | |
| 17:14 | Never use WHERE_IN_SEEKSCAN for the 2nd or subsequent IN operator. (check-in: d0b98619 user: drh tags: seekscan-improvements) | |
| 12:44 | This is an attempt to address the OP_SeekScan performance issue identified by forum post b4fcb8a598. (check-in: d58efb3f user: drh tags: seekscan-improvements) | |
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2021-06-01
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| 21:07 | Fix issue in 'mkopcodeh.tcl' tool that prevented its termination in rare circumstances. (check-in: a8d92113 user: mistachkin tags: trunk) | |
| 15:37 | Fix a problem with running ALTER TABLE against schemas that contain compound SELECT statements with ORDER BY clauses containing one or more references to the second or subsequent component SELECT statements. This fixes the problem reported by forum post 31ceaa8461. (check-in: 587a3044 user: dan tags: trunk) | |
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2021-05-29
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| 23:07 | Do not confuse the ">" operator with IS NOT NULL when checking to see if a partial index is usable. Forum post d813704d7c. (check-in: 8cc23931 user: drh tags: trunk) | |
| 21:50 | Fix a subtle error in an assert(). dbsqlfuzz eefbd0215c0c1b4bcc32b8141b48b35f7b431300 (check-in: a5ec81eb user: drh tags: trunk) | |
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2021-05-28
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| 14:28 | If a subquery is used to drive an index, this change avoids making an extra copy of the result of that subquery. But, such situations are probably sufficiently unusual that the added complexity of this enhancement is not worth the performance gain. So I'm going to park this check-in on a branch. If we later find a use case to justify it, we can merge it to trunk then. This is the "further change" that was promised by the prior check-in comment. (Leaf check-in: 4488cb88 user: drh tags: copy-optimization) | |
| 12:48 | Make a deep copy of the result of a subquery in case the subquery is reused. Fix for the problem reported by forum post 28216b36ac and introduced by check-in [f30fb19ff763a7cb]. Further changes to try to optimize the new OP_Copy opcode back into either OP_SCopy or OP_Move will be attempted separately. A test case will be in TH3. (check-in: c9f0b9cb user: drh tags: trunk) | |
| 12:15 | Fix a potential memory leak in json_group_object() following an error. dbsqlfuzz cd32630de3ff039d97089592b63cb3616f8ec9dd (check-in: 21676731 user: drh tags: trunk) | |
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2021-05-27
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| 16:31 | Add the merge-test.tcl script to ease verification of LTS branches. (check-in: f958ffbc user: drh tags: trunk) | |
| 15:24 | The SQLITE_ENABLE_SHARED_SCHEMA compile-time option is on by default in the configure-generated makefile, permitting a complete test of this branch using "./configure && make test". (check-in: e867d226 user: drh tags: reuse-schema) | |
| 14:09 | Improved comment on the prpagateConstants() routine. No changes to executable code. (check-in: d61a875d user: drh tags: trunk) | |
| 10:23 | Remove a NEVER that is reachable following OOM in writable_schema=ON mode with a corrupt schema. (check-in: 4eb80b0c user: drh tags: trunk) | |
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2021-05-26
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| 23:10 | Improvements to the constant-propagation optimization in order to better deal with unusual affinities. See forum post 6a06202608 for more detail. (check-in: 9be208a6 user: drh tags: trunk) | |
| 19:52 | Minor optimization to opcode comparison logic in the fixes to the constant-propagation optimization on this branch. (Closed-Leaf check-in: f17dec40 user: drh tags: constant-propagation-fix) | |
| 19:37 | Add new test file whereM.test. Containing tests for the change on this branch. (check-in: c4c76b82 user: dan tags: constant-propagation-fix) | |
| 18:51 | Avoid assuming that an expression like "x=10" in a WHERE clause implies that CASE(x AS TEXT)=='10'. (check-in: 389ec669 user: dan tags: constant-propagation-fix) | |
| 18:46 | Take care that the code is not generated for the same Select object more than once, as transformations that apply during the first pass might cause problems for the second pass. dbsqlfuzz 836b625cd8a41809ef80fc7ebaa6554357bcb463. (check-in: f30fb19f user: drh tags: trunk) | |
| 14:32 | Update an assert() in wherecode.c that might fail following an unrelated SQL error. (check-in: 3e2c36a8 user: dan tags: trunk) | |
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2021-05-25
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| 16:10 | Do not run sessionbig.test as part of the session_strm permutation. It is too slow. (check-in: 708ce7ad user: dan tags: trunk) | |
| 15:21 | Update an allocation routine in the sessions module to allow it to allocate the maximum size permitted by sqlite3_realloc64(). (check-in: 0b45e821 user: dan tags: trunk) | |
| 11:39 | Enhance the shell tool ".dump PATTERN" command so that it dumps the contents of shadow tables when a virtual table is identified by the PATTERN. (check-in: b0bc5ab9 user: dan tags: trunk) | |
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2021-05-24
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| 14:35 | Fix a problem in the in-memory journal code that could occasionally lead to a segfault when a sub-transaction that modified zero pages was committed. (check-in: 17960165 user: dan tags: trunk) | |
| 12:28 | Minor comment improvements in fuzzcheck.c. (check-in: 7aca8d52 user: drh tags: trunk) | |
| 12:13 | New dbsqlfuzz cases added to test/fuzzdata8.db. (check-in: 5bb5c9ec user: drh tags: trunk) | |
| 11:35 | Fix the TreeView module so that it works with the TK_ERROR exprssion. Also fix an assert() that was failing due to the recent TK_ERROR addition. (check-in: dd56fbe0 user: drh tags: trunk) | |
| 00:17 | Additional defenses (above and beyond [b986600520696b0c]) to prevent an invalid subquery from causing problems downstream. If an error is found while analyzing a subquery expression, change the expression to TK_ERROR so inhibit further processing on that expression. dbsqlfuzz cf624b8c0484c66e0f552bf6475e3e3f2c22b24e. (check-in: 0be6b6c9 user: drh tags: trunk) | |
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2021-05-23
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| 17:47 | Do not push a WITH clause onto the processing stack if prior errors have occurred. dbsqlfuzz 6b7a144674e215f06ddfeb9042c873d9ee956ac0. (check-in: c2066dde user: drh tags: trunk) | |
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2021-05-22
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| 15:05 | Merge latest trunk changes into this branch. (check-in: dbc65a69 user: dan tags: reuse-schema) | |
| 11:23 | Do not invoke sqlite3ExprAffinity() after a syntax error that might have left the tree in an inconsistent state. See also [e8a1515b44380cc5] and forum post 7e484e225c. (check-in: b9866005 user: drh tags: trunk) | |
| 11:00 | The fix in the previous check-in was only correct if the OOM occurs on the initial allocation. This changes should make it correct for a resize as well. (check-in: 57087ab2 user: drh tags: trunk) | |
| 01:30 | If an FTS5 Cursor fails to enlarge the space for the aInst array, set the size of the aInst array to zero. dbsqlfuzz 294254b8105cca409f27a711f1eb2e9e63cbcac5. (check-in: 4ae5e5b5 user: drh tags: trunk) | |
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2021-05-21
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| 21:49 | If there are errors in a nested CTE, be sure to abandon processing. Do not continue since the parse tree may have been left in a goofy state which could cause use-after-free and segfaults. See forum post aa4a7a3980 for an example. (check-in: 94225d69 user: drh tags: trunk) | |
| 17:31 | Merge latest changes from wal2 into this branch. (check-in: 4efefb59 user: dan tags: begin-concurrent-pnu-wal2) | |
| 16:42 | Merge the latest trunk enhancements into the wal2 branch. (check-in: 95cc7783 user: drh tags: wal2) | |
| 16:41 | Fix a problem with SQLITE_MAX_MEMORY in malloc.c. (check-in: c18dbe2f user: dan tags: trunk) | |
| 16:32 | Merge the latest trunk changes into begin-concurrent-report branch via the begin-concurrent-pnu branch. (check-in: 1dc6cf51 user: drh tags: begin-concurrent-report) | |
| 16:17 | Merge recent trunk changes into the begin-concurrent-pnu branch. (check-in: a8d05f8e user: drh tags: begin-concurrent-pnu) | |
| 15:33 | Merge all recent trunk changes into the begin-concurrent branch. (check-in: 0dba9010 user: drh tags: begin-concurrent) | |
| 13:32 | Add a new sqlite3_config() option for setting the maximum precision of a printf() substitition. The default value is 100,000. It was formerly more than 2 billion. The default can be changed using the SQLITE_PRINTF_PRECISION_LIMIT compile-time option. (Leaf check-in: fd8b68a4 user: drh tags: compile-time-precision-limit) | |
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2021-05-20
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| 23:25 | Fix a faulty assert() statement in sqlite3ExprListDup(). This is a continuation of the fix at [59812e7ef705226c]. (check-in: 240f7494 user: drh tags: trunk) | |
| 18:11 | Enhance one test case to use various alternative definitions of DUAL. (check-in: 179dcb6b user: drh tags: trunk) | |
| 17:15 | Ensure that objects within view definitions are not incorrectly resolved to CTEs that are part of the statement using the view. (check-in: f7dcc4b5 user: dan tags: trunk) | |
| 11:42 | Ensure the required b-tree mutexes are held for "CREATE TABLE IF NOT EXISTS" and "DROP TABLE IF EXISTS" statements on attached databases. (check-in: 67bde016 user: dan tags: trunk) | |
| 00:44 | Replace [0f0959c6f95046e8] with a new and better solution that also fixes the CTE name resolution problem described in forum post 8590e3f6dc. Test cases for both problems added. (check-in: 5614279d user: drh tags: trunk) | |
| 00:10 | Fixes and improvements to PRAGMA compile_options. (check-in: 34579549 user: drh tags: trunk) | |
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2021-05-19
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| 23:29 | final merge from trunk (Leaf check-in: 06629569 user: larrybr tags: compile_options) | |
| 21:55 | When constructing the synthensized SELECT statement that is used to choose the rows in an UPDATE FROM, make sure the first table is really the table being updated, and not some common-table expression that happens to have the same name. forum post a274248080. More changes associated with CTE name resolution are pending. (check-in: 0f0959c6 user: drh tags: trunk) | |
| 20:01 | Incorporate ..._DESERIALIZE revision. (check-in: b70587cc user: larrybr tags: compile_options) | |
| 19:55 | merge from trunk (check-in: 19ffe3cf user: larrybr tags: compile_options) | |
| 19:28 | Add a comment with useful information about SHM locking. No changes to deliverable code. (check-in: 4e81ea3b user: drh tags: trunk) | |
| 19:27 | Fix a formatting error on the comment. (Closed-Leaf check-in: 6f2fb60e user: drh tags: better-comment) | |
| 16:55 | Add a table of shared-memory lock offsets in a comment in the os_unix.c code. Include some assert()s to help verify the numbers. (check-in: b480aacb user: drh tags: better-comment) | |
| 14:49 | Allow aggregate sub-selects within ORDER BY and PARTITION BY clauses of window frame definitions. (check-in: 3daab949 user: dan tags: trunk) | |