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96 ancestors of d8d3e6d04cbb9e30
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2014-12-12
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| 01:27 | Add new tests to the threadtest4.c program. Fix a long-standing data race in WAL mode for shared-cache. (check-in: d8d3e6d04c user: drh tags: trunk) | |
| 00:52 | Remove the KeyInfo cache (for now - perhaps we will add it back in later - or maybe not since it provides negligible benefit but adds a lot of complexity and thread-safety risk). Add a mutex to ATTACH to deal with a data race. (check-in: 03c443eaf2 user: drh tags: trunk) | |
| 00:40 | Make sure the Btree mutex is held when setting the locking mode and the secure delete flag when attaching a shared-cache database. (Closed-Leaf check-in: 6bef7ede2b user: drh tags: threadtest4) | |
| 00:26 | Merge the cell overflow page number cache thread race fix from trunk. (check-in: cefad47ec2 user: drh tags: threadtest4) | |
| 00:20 | Fix a bug in the threadtest4.c program. Remove the keyinfo cache as it provides minimal performance improvements, and then only at SQL preparation time, not at runtime, and it has problems with data races in shared-cache mode. We might later add the keyinfo cache back but only enable it when shared-cache mode is off. (check-in: b7489f9451 user: drh tags: threadtest4) | |
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2014-12-11
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| 19:29 | Add the threadtest4.c test program. Not yet working. (check-in: ec3a74469c user: drh tags: threadtest4) | |
| 16:38 | Fix a race condition to do with very large index keys in shared-cache mode. (check-in: fc157dd7f1 user: dan tags: trunk) | |
| 15:27 | Fix a typo in the documentation for sqlite3_threadsafe(). (check-in: 258e747bb7 user: drh tags: trunk) | |
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2014-12-10
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| 20:57 | Fix a typo causing a test error in e_walhook.test. (check-in: d9f916ba09 user: dan tags: trunk) | |
| 20:29 | Add new test file e_walhook.test. (check-in: 2eb6d3e4fb user: dan tags: trunk) | |
| 17:34 | Revise mutex handling by the sqlite3_win32_reset_heap() function. (check-in: eacb3b7baa user: mistachkin tags: trunk) | |
| 04:58 | Fix typos in the documentation for sqlite3_table_column_metadata(). No changes to code. (check-in: 3528f8dd39 user: drh tags: trunk) | |
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2014-12-09
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| 22:24 | Fix the sqlite3_table_column_metadata() routine so that it gives the correct answer for the "rowid" column in a WITHOUT ROWID table. Enhance it so that it can be used to check for the existence of a table by setting the column name parameter to NULL. The routine is now included in the build by default, even without the SQLITE_ENABLE_COLUMN_METADATA compile-time option. (check-in: cf9be419a1 user: drh tags: trunk) | |
| 20:13 | Add extra tests to e_walckpt.test. (check-in: 84f9581019 user: dan tags: trunk) | |
| 19:16 | Lower the default SQLITE_SORTER_PMASZ value back to 10, where it has been for the past couple of releases. Applications that need a larger value can set one. (check-in: 1ba8911c18 user: drh tags: trunk) | |
| 19:07 | Make the sqlite3_table_column_metadata() interface available by default and without requiring the SQLITE_ENABLE_COLUMN_METADATA compile-time option. Other sqlite3_column_* interfaces that have a run-time penalty even if they are unused still require the SQLITE_ENABLE_COLUMN_METADATA option at compile-time. (check-in: 4f7549ff92 user: drh tags: trunk) | |
| 15:12 | Add the SQLITE_REVERSE_UNORDERED_SELECTS compile-time option that causes the "PRAGMA reverse_unordered_selects" setting to be on by default. (check-in: 75a803e694 user: drh tags: trunk) | |
| 14:42 | Increase the default minimum PMA size for multi-threaded sorting from 10x the page size to 250x the page size. Provide the SQLITE_SORTER_PMASZ compile-time option to change this default. (check-in: b05340fe3c user: drh tags: trunk) | |
| 04:26 | Fix harmless compiler warning. (check-in: e97b7a8b4d user: mistachkin tags: trunk) | |
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2014-12-08
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| 20:29 | Add extra tests to e_walckpt.test. (check-in: d6832aa24c user: dan tags: trunk) | |
| 20:20 | Add missing mutex calls around a call to sqlite3SchemaGet() within sqlite3_open(). (check-in: 4541589954 user: dan tags: trunk) | |
| 18:08 | Add a missing mutex around calls to clear the KeyInfo cache when closing a database connection. (check-in: 7047ce32a2 user: drh tags: trunk) | |
| 17:45 | Add a missing mutex around calls to clear the KeyInfo cache when closing a database connection. (check-in: 3ddc7e4c77 user: drh tags: branch-3.8.7) | |
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2014-12-06
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| 14:56 | Avoid accessing a single uninitialized byte when moving a rare 3-byte cell from an internal page to a leaf. This was not actually causing a problem, just a valgrind warning. (check-in: 6aeece19a2 user: dan tags: trunk) | |
| 02:05 | Fix a (harmless) uninitialized variable reference in b-tree balancing for auto-vacuumed tables with overflow pages. (check-in: dd1dd4451f user: drh tags: trunk) | |
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2014-12-05
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| 21:18 | Avoid a potential NULL pointer deference in the sqlite3_stmt_scanstatus() logic. (check-in: 42d44adc13 user: drh tags: trunk) | |
| 21:04 | Fix a buffer overread that might occur in analyze.c if SQLITE_ENABLE_STAT4 was defined. (check-in: c1ae1268b9 user: dan tags: trunk) | |
| 20:46 | Add new test file e_walckpt.test. Still some tests to come. (check-in: e4db3db3a6 user: dan tags: trunk) | |
| 20:43 | Fix a buffer overread that might occur in analyze.c if SQLITE_ENABLE_STAT4 was defined. (check-in: 194c90db63 user: dan tags: branch-3.8.7) | |
| 19:50 | Make sure the WhereTerm objects are fully zeroed when they are allocated. (check-in: fdb667335c user: drh tags: trunk) | |
| 15:31 | The KeyInfo cache must be cleared before closing the btree, not after. Revised fix for ticket [e4a18565a36884b00edf]. (check-in: 7ed3346e8c user: drh tags: trunk) | |
| 15:25 | The KeyInfo cache must be cleared before closing the btree, not after. Revised fix for ticket [e4a18565a36884b00edf]. (check-in: 48529508cf user: drh tags: branch-3.8.7) | |
| 14:44 | When closing a (shared-cache) database connection, be sure to clear out all KeyInfo objects cached on Index objects. Fix for ticket [e4a18565a36884b00edf]. (check-in: adca7688de user: drh tags: trunk) | |
| 14:34 | Improved comment on the sharedB.test test script. (Closed-Leaf check-in: 71f589e3f8 user: drh tags: fix-stale-keyinfo-cache) | |
| 14:07 | Test case demonstrating the problem described by ticket [e4a18565a36884b00edf]. (check-in: ffea3e905a user: drh tags: fix-stale-keyinfo-cache) | |
| 05:38 | When closing a (shared-cache) database connection, be sure to clear out all KeyInfo objects cached on Index objects. Proposed fix for ticket [e4a18565a36884b00edf]. (check-in: 651ed97de1 user: drh tags: fix-stale-keyinfo-cache) | |
| 00:32 | Fix compiler warnings. (check-in: e9955c0e14 user: drh tags: trunk) | |
| 00:17 | Fix the autoconf and MSVC makefiles, which have been broken for nearly a month. :-( (check-in: 520c2b838d user: drh tags: trunk) | |
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2014-12-04
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| 21:54 | Make sure that a DISTINCT query with an ORDER BY works correctly even if it uses a descending index. Fix for ticket [c5ea805691bfc4204b1cb9e]. (check-in: 0d3aef97eb user: drh tags: trunk) | |
| 20:24 | Performance enhancement for single-table queries with many OR-connected WHERE clause terms and multiple indexes with the same left-most columns. (check-in: 1461d543ac user: drh tags: trunk) | |
| 16:27 | If a table is the right operand of a LEFT JOIN, then any column of that table can be NULL even if that column has a NOT NULL constraint. Fix for ticket [6f2222d550f5b0ee7ed]. (check-in: 6f6fcbe473 user: drh tags: trunk) | |
| 15:02 | Clarification of the meaning of the second parameter to the busy-handler callback. No changes to code. (check-in: 1e2bc484f8 user: drh tags: trunk) | |
| 14:01 | Fix comment typos reported on the mailing list. No changes to code. (check-in: 93a71c9f05 user: drh tags: trunk) | |
| 04:50 | Add an implementation mark and fix a comment describing the OP_Checkpoint opcode. (check-in: 7475b90c55 user: drh tags: trunk) | |
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2014-12-03
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| 19:25 | Add evidence marks and assert()s used as evidence for checkpoint requirements. (check-in: b2da8afc76 user: drh tags: trunk) | |
| 19:08 | Fix over-length comment lines in sqlite.h.in. No changes to code. (check-in: cbd357fd8c user: drh tags: trunk) | |
| 18:32 | Simplify the sqlite3_wal_checkpoint() documentation. Add some source code evidence marks. (check-in: 026c44ff2c user: drh tags: trunk) | |
| 16:30 | Futher tweaks to the sqlite3_wal_checkpoint_v2() documentation. (check-in: 7d284d047b user: drh tags: trunk) | |
| 15:50 | Updates to the documentation for sqlite3_wal_checkpoint_v2() and related interfaces, including adding many requirements marks. (check-in: 1e212d9899 user: drh tags: trunk) | |
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2014-12-02
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| 20:51 | Add support for SQLITE_CHECKPOINT_TRUNCATE. (check-in: edda2b9e7a user: drh tags: trunk) | |
| 19:35 | When attempting to restart a wal file, make any required calls to sqlite3_randomness() before waiting on or checking for wal file readers. This restores the behaviour exhibited by the trunk. (Closed-Leaf check-in: 6ee08769f0 user: dan tags: checkpoint-truncate) | |
| 19:04 | Add the SQLITE_CHECKPOINT_TRUNCATE option. (check-in: 8e20a43419 user: dan tags: checkpoint-truncate) | |
| 16:16 | Convert two unreachable branches into assert() statements. (check-in: 61b31e7714 user: drh tags: trunk) | |
| 13:46 | Work around overzealous NULL pointer checking in memcpy() and memset() for some systems. (check-in: 0d04f380e1 user: drh tags: trunk) | |
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2014-11-28
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| 13:35 | Remove the ill-designed "-end" option from the command-line shell. Instead, allow multiple SQL or dot-commands as command-line arguments. Any -cmd commands are processed first, followed by other command-line arguments, for backwards compatibility. (check-in: 24fa2e9832 user: drh tags: trunk) | |
| 11:54 | Add the -end option to the command-line shell, which forces it to exit after reading prior command-line options (presumably including one or more -cmd options) and without reading standard input. (check-in: b59397b1f1 user: drh tags: trunk) | |
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2014-11-27
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| 11:36 | Fix a buffer overread during compilation of CREATE VIRTUAL TABLE statements that featured an explicit database name but no virtual table arguments. For example, "CREATE VIRTUAL TABLE main.ft USING fts4". (check-in: f095cde579 user: dan tags: trunk) | |
| 04:23 | More test cases for the balancer. (check-in: 358ea818f7 user: drh tags: trunk) | |
| 03:46 | Fix a problem in the new b-tree balancer that was causing corruption of the fragmentation count. (check-in: f242394e07 user: drh tags: trunk) | |
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2014-11-25
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| 18:59 | Fix an integer overflow bug in vdbesort.c. (check-in: 6238271925 user: dan tags: trunk) | |
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2014-11-22
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| 21:37 | Always reinitialized the Index.bUnordered and Index.noSkipscan flags before rereading the sqlite_stat1 table, even if SQLITE_ENABLE_STAT4 is defined. (check-in: 1e1221fc48 user: drh tags: trunk) | |
| 19:52 | Fix an error in the comments from the previous check-in. (check-in: 9660ce5418 user: drh tags: trunk) | |
| 18:50 | Deploy heuristics (well-commented) to better estimate how much unindexed terms in the WHERE clause filter the number of output rows from a single table. (check-in: 221659945c user: drh tags: trunk) | |
| 12:22 | Remove a redundant test case (probably a copy/paste error). Add an assert() to where.c to ensure that automatic indexes do not have there output row counts adjusted downward by supplementary constraints. (check-in: eea4793349 user: drh tags: trunk) | |
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2014-11-20
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| 23:21 | Fix a typo in a requirements mark on the abs() SQL function. (check-in: b1e6c02f8b user: drh tags: trunk) | |
| 23:11 | Fix a benign test error on PRAGMA collation_list introduced by a recent checkin. (check-in: 332cc9591d user: drh tags: trunk) | |
| 23:03 | Updates to requirements tags on the mutex documentation. (check-in: fcf8b7e4c6 user: drh tags: trunk) | |
| 19:22 | Add requirements marks on the built-in collating functions. (check-in: 4b608b62ac user: drh tags: trunk) | |
| 15:30 | Ensure that when the number of cells on a page drops to zero that the freelist and fragment counter are both cleared. Also add evidence marks corresponding to file-format documentation. (check-in: ef9fbc08b0 user: drh tags: trunk) | |
| 02:58 | Fix the encoding of some integers to use the minimum amount of space: -128, -32768, -8388608, -217483648, and -140737488355328. (check-in: 2d7c8da5f1 user: drh tags: trunk) | |
| 02:18 | Add some requirements marks to the record formatting logic. Comment changes only - the code is unaltered. (check-in: 9a9627e178 user: drh tags: trunk) | |
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2014-11-19
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| 16:36 | Add new requirements marks associated with the file format documentation. No changes to code. (check-in: 6d00bcca6e user: drh tags: trunk) | |
| 14:31 | Completely remove an assert() that had previously been commented out. (check-in: 89b3c1c455 user: drh tags: trunk) | |
| 14:05 | Add an ALWAYS on an always-true branch in wal.c. Fix the ANALYZE command so that it resets the "unordered" and "noskipscan" flags on indices when reloading the sqlite_stat1 table. (check-in: 9ed97a85fe user: drh tags: trunk) | |
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2014-11-18
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| 21:54 | Adding the "noskipscan" token to an sqlite_stat1.stat field prevents an index for being used with the skip-scan algorithm. (check-in: 4461bf045d user: drh tags: trunk) | |
| 21:45 | Allow an automatic index to be used if the only uses of declared indexes for the same loop use the skip-scan algorithm. (check-in: c52f7971e9 user: drh tags: trunk) | |
| 20:49 | Merge in all the other ROLLBACK fixes from the branch-3.8.7 branch. I don't know why I was doing them one-by-one. (check-in: 296b0c7397 user: drh tags: trunk) | |
| 20:22 | Fix a bug in the sqlite3TripAllCursors() routine that prevents it from reporting errors. It is unknown at this time whether or not this omission can result in any incorrect result in an actual query. (check-in: 2896f2640a user: drh tags: trunk) | |
| 20:16 | Update a couple of test cases to account for the fact that ROLLBACK does not always abort all running SELECT statements. (check-in: abccda769a user: drh tags: trunk) | |
| 12:28 | Increment the version number to 3.8.7.2 (check-in: 945a9e687f user: drh tags: branch-3.8.7) | |
| 02:44 | Add an ALWAYS() to an always-true conditional in the WAL rollback logic. (check-in: c5eae8a60d user: drh tags: branch-3.8.7) | |
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2014-11-17
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| 20:33 | Remove code from sqlite3BtreeKeySize() made unreachable by the previous check-in. (check-in: 57c4aa988c user: drh tags: branch-3.8.7) | |
| 19:44 | Avoid calling sqlite3BtreeKeysize() on a b-tree cursor in SKIPNEXT or SKIPPREV state. Cherrypick of [54e7d3fcb1]. (check-in: 2f2ecb9948 user: dan tags: branch-3.8.7) | |
| 19:42 | Avoid calling sqlite3BtreeKeysize() on a b-tree cursor in SKIPNEXT or SKIPPREV state. (check-in: 54e7d3fcb1 user: dan tags: trunk) | |
| 19:25 | Improved comments on the BtCursor.skipNext field. No changes to code. (check-in: e956e7db05 user: drh tags: branch-3.8.7) | |
| 17:13 | When a SELECT statement is terminated by a ROLLBACK TO operation, make the error message be "abort due to ROLLBACK" rather than "callback requested query abort". (check-in: 34fc4a082c user: drh tags: branch-3.8.7) | |
| 15:32 | Fix a bug in the sqlite3TripAllCursors() routine that prevents it from reporting errors. It is unknown at this time whether or not this omission can result in any incorrect result in an actual query. (check-in: 42588207ff user: drh tags: branch-3.8.7) | |
| 15:22 | Update a couple of test cases to account for the fact that ROLLBACK does not always abort all running SELECT statements. (check-in: eba171e980 user: dan tags: branch-3.8.7) | |
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2014-11-15
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| 19:08 | Adding the "noskipscan" token to an sqlite_stat1.stat field prevents an index for being used with the skip-scan algorithm. (Closed-Leaf check-in: 00fe095057 user: drh tags: noskipscan-token) | |
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2014-11-14
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| 19:34 | Consider using an automatic-index for a scan even if there exists a possible skip-scan that uses one or more "=" operators. (Closed-Leaf check-in: 93642a65ef user: dan tags: experimental-autoindex-fix) | |
| 15:42 | Do not automatically remove the DISTINCT keyword from "a IN (SELECT DISTINCT ...)" expressions. Fix for [db87229497]. (check-in: 98457a57d6 user: drh tags: branch-3.8.7) | |
| 15:28 | Do not automatically remove the DISTINCT keyword from "a IN (SELECT DISTINCT ...)" expressions. Fix for [db87229497]. (check-in: 55e453aadb user: dan tags: trunk) | |
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2014-11-13
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| 14:30 | Modify the documentation for sqlite3_backup_init() to indicate that it will fail if there is already a read or read-write transaction open on the destination database. (check-in: ef03a20335 user: dan tags: trunk) | |
| 14:18 | Have calls to sqlite3_backup_init() fail if there is already a read or read-write transaction open on the destination database. (check-in: 169b550549 user: dan tags: trunk) | |
| 13:42 | When a transaction or savepoint rollback occurs, save the positions of all open read-cursors so that they can be restored following the rollback operation. Cherry-pick of check-in [dd03a2802f3f27] (check-in: 402780a9c8 user: drh tags: branch-3.8.7) | |
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2014-11-12
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| 17:45 | Add further tests for rollback operations in the presence of ongoing selects. (check-in: eaf3aae014 user: dan tags: trunk) | |
| 14:56 | When a transaction or savepoint rollback occurs, save the positions of all open read-cursors so that they can be restored following the rollback operation. (check-in: dd03a2802f user: dan tags: trunk) | |