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200 most recent check-ins using file ext/fts3/fts3_unicode.c version a93f5edc
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2019-09-03
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| 19:29 | Fix a buffer overread that could occur when running fts5 prefix queries inside a transaction. (Leaf check-in: b584fd36 user: dan tags: branch-3.9) | |
| 17:39 | Disable the undocumented rtreenode() SQL function that is only used for testing, except when doing a build that is specifically intended for testing. (check-in: 7b4583f9 user: drh tags: branch-3.9) | |
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2018-12-19
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| 16:03 | Add interfaces sqlite3_bind_pointer(), sqlite3_result_pointer(), and sqlite3_value_pointer() used to safely move pointer values through SQL without exposing underlying memory address information. Cherrypick from commit [8201f4e1] on branch-3.18. (check-in: 4cb67252 user: dan tags: branch-3.9) | |
| 01:57 | Add extra defenses against strategically corrupt databases to fts3/4. (check-in: 882ef4e3 user: drh tags: branch-3.9) | |
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2018-12-14
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| 20:28 | Add a missing OP_ColumnsUsed opcode to code for expressions like "? IN (SELECT ...)" in cases where expression can use an index that may contain NULL values. (Backported fix from version 3.14.0). (Leaf check-in: 11368e67 user: drh tags: branch-3.8.9) | |
| 20:20 | Add the OP_ColumnsUsed opcode (when compiled with SQLITE_ENABLE_COLUMN_USED_MASK) as a hint to the b-tree layer as to which columns of a btree cursor will be used. (Backport from 3.8.11) (check-in: b29e02f8 user: drh tags: branch-3.8.9) | |
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2018-02-02
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| 16:46 | Enable the ".wheretrace" and ".selecttrace" options in the shell when configure is run using --enable-debug. This mirrors a similar change that has already occurred on trunk. (Leaf check-in: c4f798b2 user: drh tags: branch-3.9.2) | |
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2017-11-14
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| 18:26 | Fix the SQLITE_ENABLE_UPDATE_DELETE_LIMIT functionality so that it works with views and WITHOUT ROWID tables. This is a modified cherrypick of [dae4a97a]. (check-in: b2679d3b user: dan tags: branch-3.8.9) | |
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2017-11-09
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| 04:13 | Disallow ORDER BY and LIMIT on UPDATE and DELETE of views and WITHOUT ROWID tables. This is a temporary fix for ticket [d4beea1633f1b88f] until a better solution can be found. (check-in: 30aa941f user: drh tags: branch-3.8.9) | |
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2017-07-27
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| 22:16 | Enhance the like optimization so that it works with an ESCAPE clause. (check-in: 2495acf7 user: drh tags: branch-3.8.9) | |
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2017-07-21
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| 07:45 | Add new interfaces sqlite3_result_pointer(), and sqlite3_value_pointer() and use them to transfer the eponymous FTS3 column pointer to the snippet() and offsets() routines. This changes is a cherry-pick of [f0f49224] with version-specific edits. That check-in was inspired by check-in [72de49f2]. (check-in: 69906880 user: drh tags: branch-3.9.2) | |
| 04:08 | Add new interfaces sqlite3_result_pointer(), and sqlite3_value_pointer() and use them to transfer the eponymous FTS3 column pointer to the snippet() and offsets() routines. This is a cherry-pick of [f0f49224] which was in turn inspired by [72de49f2]. (Leaf check-in: 5a3022e0 user: drh tags: branch-3.8.10) | |
| 03:23 | Add new interfaces sqlite3_result_pointer(), and sqlite3_value_pointer() and use them to transfer the eponymous FTS3 column pointer to the snippet() and offsets() routines. This is a cherry-pick of [f0f492245e95], which is in turn inspired by check-in [72de49f2]. (Leaf check-in: a66a5b39 user: drh tags: branch-3.8.6) | |
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2017-07-17
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| 19:37 | Try to push relevant WHERE clause terms of the outer query down into the subquery in order to help the subquery run faster and/or use less memory. This is a cherry-pick of [6df18e949d36] with bug fixes. (check-in: cd6ac078 user: drh tags: branch-3.8.9) | |
| 19:25 | When checking for the WHERE-clause push-down optimization, verify that all terms of the compound inner SELECT are non-aggregate, not just the last term. Fix for ticket [f7f8c97e97597]. (Closed-Leaf check-in: adc082c1 user: drh tags: push-down-backport) | |
| 19:14 | Do not apply the WHERE-clause pushdown optimization to terms that originate in the ON or USING clause of a LEFT JOIN. Fix for ticket [c2a19d81652f40568c]. (check-in: 52674f94 user: drh tags: push-down-backport) | |
| 19:07 | For FROM-clause subqueries that cannot be flattened, try to push relevant WHERE clause terms of the outer query down into the subquery in order to help the subquery run faster and/or use less memory. Cherry-pick from [6df18e949d36]. Still need to backport bug fixes associated with that check-in. (check-in: 043d6ce8 user: drh tags: push-down-backport) | |
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2017-07-15
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| 10:44 | Add new interfaces sqlite3_bind_pointer(), sqlite3_result_pointer(), and sqlite3_value_pointer() used to safely move pointer values through SQL without exposing underlying memory address information. (Leaf check-in: d6a44b35 user: drh tags: branch-3.17) | |
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2017-07-08
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| 01:01 | Fix the covering index OR optimization (check-in [fcbd6abd]) so that it works with SQLITE_MAX_ATTACHED>30. Broken by a bad cherry-pick merge. (check-in: d227de8a user: drh tags: branch-3.8.9) | |
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2017-07-05
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| 16:20 | Make use of covering indexes in the OR optimization. (check-in: fcbd6abd user: drh tags: branch-3.8.9) | |
| 14:54 | Add the count-of-view optimization when compiled using SQLITE_COUNTOFVIEW_OPTIMIZATION. (check-in: b7ae4b87 user: drh tags: branch-3.8.9) | |
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2017-06-06
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| 18:22 | Add the SQLITE_DEFAULT_ROWEST compile-time option for changing the estimated number of rows in tables that lack sqlite_stat1 entries. (check-in: 802b82f3 user: drh tags: branch-3.8.9) | |
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2017-06-01
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| 16:13 | Add test code for LSM to the ext/lsm1/lsm-test directory. (check-in: bb7436e8 user: dan tags: lsm-vtab) | |
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2017-05-24
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| 04:32 | Fix a problem in STAT4 equality estimation for multi-column indexes introduced by check-in [3e0590dee0e68cc1599]. (check-in: 19dad0a7 user: drh tags: branch-3.8.9) | |
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2017-05-22
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| 00:27 | When planning a query using sorting, resolve ties in the solver by selecting loop plans with the smaller unsorted cost. (check-in: 962531e7 user: drh tags: branch-3.8.9) | |
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2017-03-31
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| 08:00 | Update shell6.test to account for the fact that tests are now run in a separate directory. (check-in: 1e3622de user: dan tags: schemalint) | |
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2017-03-20
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| 16:34 | Avoid the possibility of signed integer overflow with oversized precisions in %d conversions in the printf() implementation. (check-in: ef3a7c87 user: drh tags: trunk) | |
| 16:06 | Do not run sync2.test as part of the "journaltest" permutation, as it uses "PRAGMA synchronous = off". (check-in: 285005a9 user: dan tags: trunk) | |
| 15:29 | Ensure that a "--" prefix is added to sqlite3_trace_v2() output for nested SQL statements. (check-in: 673a7b67 user: drh tags: trunk) | |
| 15:11 | Only run sync2.test on unix, as it depends on instrumentation in os_unix.c. (check-in: ecb9321e user: dan tags: trunk) | |
| 14:44 | Fix the check.test script so that it works on Windows. (check-in: 8822eb5d user: drh tags: trunk) | |
| 13:03 | Documentation fix: SQLITE_SOURCE_ID is a now a SHA3-256 hash. (check-in: 2aa22509 user: drh tags: trunk) | |
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2017-03-18
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| 13:59 | Only do the specialized MacOS single-core zone_malloc initialization if compiled with the SQLITE_MIGHT_BE_SINGLE_CORE flag. This avoids a (harmless) warning about OSAtomicCompareAndSwapPtrBarrier() being deprecated. (check-in: 4e6a03d9 user: drh tags: trunk) | |
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2017-03-17
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| 23:08 | Fix an error in the newly revised documentation for SQLITE_LIMIT_VDBE_OP. No changes to code. (check-in: f4cf8635 user: drh tags: trunk) | |
| 22:51 | Set a reasonable limit on the number of opcodes in a prepared statement for ossfuzz.c. This should prevent timeouts in OSS-Fuzz when it generates totally unreasonable queries. (check-in: f74899ed user: drh tags: trunk) | |
| 22:50 | Begin enforcing the SQLITE_LIMIT_VDBE_OP. The documentation warned that this day might come. (check-in: ef591461 user: drh tags: trunk) | |
| 14:59 | Add the --show-errors and --show-max-delay command-line options to the ossshell test program. (check-in: 626bdca9 user: drh tags: trunk) | |
| 14:15 | Fix the Makefile.in so that it builds the ossshell test program correctly. (check-in: 36f5602e user: drh tags: trunk) | |
| 13:59 | Fix a buffer overread in debugging routine sqlite3VdbeMemPrettyPrint(). Problem discovered by OSS-Fuzz. (check-in: f336fba7 user: dan tags: trunk) | |
| 03:21 | Fix a problem in the enhanced PRAGMA integrity_check where it verifies CHECK constraints: Do not be confused by the reuse of the Table.pCheck field by VIEWs with named columns. Problem discovered by OSS-Fuzz. (check-in: 019dd3d5 user: drh tags: trunk) | |
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2017-03-16
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| 18:55 | If the user has not set it explicitly, set the "PRAGMA synchronous" setting to SQLITE_DEFAULT_SYNCHRONOUS when a database connection changes from wal to rollback journal mode. (check-in: 5c604479 user: dan tags: trunk) | |
| 18:54 | Fix a typo causing the build to fail if SQLITE_DEFAULT_SYNCHRONOUS==SQLITE_DEFAULT_WAL_SYNCHRONOUS. (Closed-Leaf check-in: df39adea user: dan tags: default-synchronous-fix) | |
| 18:14 | If the user has not set it explicitly, set the "PRAGMA synchronous" setting to SQLITE_DEFAULT_SYNCHRONOUS when a database connection changes from wal to rollback journal mode. (check-in: 78030c0f user: dan tags: default-synchronous-fix) | |
| 14:28 | Simplified OOM detection in the instr() SQL function. (check-in: 6d85eb57 user: drh tags: trunk) | |
| 13:30 | Fix an uninitialized variable reference in the text generator for "PRAGMA vdbe_trace=ON" output. Problem discovered by OSS-Fuzz. (check-in: e3d48716 user: drh tags: trunk) | |
| 13:14 | Fix a problem in the "showdb" utility that prevents it from correctly decoding cells with no content beyond the record header. (check-in: eb7680a1 user: drh tags: trunk) | |
| 12:11 | Fix a crash that could follow an OOM condition in the instr() SQL function. Problem discovered by OSS-Fuzz. (check-in: 6e59e903 user: dan tags: trunk) | |
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2017-03-15
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| 20:27 | Updates to README files under the ext/ hierarchy. No changes to code. (check-in: 029bc5d2 user: drh tags: trunk) | |
| 19:11 | Add the "Obtaining The Code" subsection in the top-level README.md file. No changes to code. (check-in: b1b1aa8b user: drh tags: trunk) | |
| 14:20 | Mention the ".selftest" command in the ".help" output of the CLI. (check-in: 37f766db user: drh tags: trunk) | |
| 14:04 | Make "PRAGMA temp.synchronous=N" a no-op to ensure that the TEMP schema always has synchronous=OFF. This fixes an issue discovered by OSS-Fuzz. (check-in: bcf6bb08 user: drh tags: trunk) | |
| 13:47 | Improved header comment on the shathree.c extension. No changes to code. (check-in: 84f2e3d5 user: drh tags: trunk) | |
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2017-03-14
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| 15:27 | Updates to the MSVC makefiles. (check-in: 1e4b9e7c user: mistachkin tags: trunk) | |
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2017-03-13
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| 22:10 | Add the dbdump.c extension that implements functionality similar to the ".dump" command of the CLI, though in a separate library. (check-in: 2b9980a2 user: drh tags: trunk) | |
| 22:02 | Add dbdump.exe to the MSVC makefile. (Closed-Leaf check-in: 59241a50 user: drh tags: dbdump) | |
| 21:49 | Fixes to the dump logic. All appears to be working in preliminary tests. (check-in: 007b11e3 user: drh tags: dbdump) | |
| 21:26 | First draft of the complete dbdump.c library. (check-in: 84ea4fcc user: drh tags: dbdump) | |
| 19:26 | Infrastructure for an extension C-library to implement sqlite3_db_dump() and a corresponding "dbdump" command-line utility - both of which do the same work as the ".dump" command of the CLI. (check-in: 74c5ace4 user: drh tags: dbdump) | |
| 18:31 | Merge all recent changes from trunk. (check-in: 3d04b2cd user: drh tags: apple-osx) | |
| 18:24 | In the output of the ".dump" command in the CLI, quote newline and carriage-return characters using the char() function, so that they do not get eaten by end-of-line processing logic in the OS or in other command-line utilities and/or libraries. (check-in: 68f6dc7a user: drh tags: trunk) | |
| 17:37 | Fix the sqlite3TreeViewSelect() routine so that it works with a null pointer to the Select object. (check-in: 9034cf7e user: drh tags: trunk) | |
| 14:30 | Fix a segfault that could occur following an OOM error in the flattenSubquery() routine. (check-in: c6dda3f7 user: dan tags: trunk) | |
| 13:45 | In the OSSFuzz test module, invoke the progress handler much more frequently so that timeouts are detected punctually even if the test script is running opcodes that individually take a long time (for example, an OP_Function opcode that invokes "randomblob(1.5e6)"). (check-in: f3b6959c user: drh tags: trunk) | |
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2017-03-12
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| 20:28 | Fix a possible NULL pointer dereference in following an OOM error in sqlite3ExprIsInteger(). Problem found by OSS-Fuzz. (check-in: 5ec655e8 user: drh tags: trunk) | |
| 19:39 | Remove an obsolete assert() in the IN operator code generation. (check-in: 18bf6aca user: drh tags: trunk) | |
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2017-03-11
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| 13:02 | Make sure the translateColumnToCopy() routine in the query planner does not try to access an array that failed to be fully allocated due to a prior OOM. This fixes an issue discovered by OSSFuzz. (check-in: 3299a261 user: drh tags: trunk) | |
| 01:56 | The output of the ".dump" command in the CLI quotes newline and carriage-return characters using "char(10)" and "char(13)". (Closed-Leaf check-in: 8b2954dd user: drh tags: string-quoting-dump) | |
| 00:46 | Increase the number of significant digits in floating point literals on ".dump" output from the shell. (check-in: 7359fcac user: drh tags: trunk) | |
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2017-03-10
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| 18:36 | Remove the rbu_round_trip.tcl script. It is now part of project "test-dbs". (check-in: b5bf2957 user: dan tags: trunk) | |
| 17:03 | Fix an error in the SQLITE_MAX_MEMORY implementation resulting from a bad merge. Update the OSSFuzz interface so that it times out after running the byte-code engine for 10 seconds. (check-in: f8560c60 user: drh tags: trunk) | |
| 16:22 | Add the -DSQLITE_MAX_MEMORY=N compile-time option. The default is no limit. (check-in: eabd4ef4 user: drh tags: trunk) | |
| 15:55 | Add the SQLITE_MAX_MEMORY compile-time option that provides a hard upper bound on the amount of memory that SQLite will use, per process. (Closed-Leaf check-in: 77dfe2ab user: drh tags: max-memory-option) | |
| 14:36 | Enhance the ".stats" dot-command in the CLI to use sqlite3_status64() instead of sqlite3_status(). (check-in: 118f5c05 user: drh tags: trunk) | |
| 01:05 | Improvements to ".selftest --init". Tests are number in increments of 10 starting with 100. The tests are generated inside a SAVEPOINT. Errors are reported during test generation. Tests can be appended to existing tests. Add a test case to verify the schema. (check-in: b044b152 user: drh tags: trunk) | |
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2017-03-09
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| 22:00 | Remove the test/dbselftest.c program. In its place, add the ".selftest" command to the CLI. The new CLI version is .selftest is slightly different in that it uses SHA3 hashing instead of SHA1, so the new is subtly incompatible with the old. (check-in: f4fcd46f user: drh tags: trunk) | |
| 18:13 | Fix the ".dump" command to correctly extract tail data from corrupt WITHOUT ROWID tables. (check-in: 6c627e50 user: drh tags: trunk) | |
| 16:32 | Add the --recovery-mode option to the CLI ".dump" command. This involves enhancing the "PRAGMA reverse_unordered_selects" command to accept a "TOGGLE" option. Recovery mode used to be always on. Now it is opt-in. Not sure this is the correct approach. Also not sure if TOGGLE is a good feature to have on boolean PRAGMA statements. (Closed-Leaf check-in: 5dc82a15 user: drh tags: dump-recovery) | |
| 13:50 | Begin moving separate boolean variables in the ShellState object of the CLI into the shellFlgs bitmask. (check-in: 50eec5d9 user: drh tags: trunk) | |
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2017-03-08
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| 23:29 | Refactor the output logic in the CLI. Not sure we want to go this way. Just saving the work for historical reference, or in case I decide to come back to it. (Leaf check-in: aacac906 user: drh tags: shell-print-refactor) | |
| 18:37 | Merge recent enhancements from trunk, including the --preserve-rowids option to .dump and the .sha3sum commands of the CLI. (check-in: 9b439173 user: drh tags: apple-osx) | |
| 18:06 | Make sure the database connection is open prior to running the ".sha3sum" command. (check-in: 2ea300fb user: drh tags: trunk) | |
| 17:56 | In the ".sha3sum" command, if there is a LIKE pattern, show the hashes for each table separately. Without a LIKE pattern, show a single hash over the entire database. (check-in: 30f87883 user: drh tags: trunk) | |
| 16:10 | Add the ".sha3sum" command to the CLI - used to compute a cryptographic hash of the content of a database file or of individual tables with in that file. (check-in: fc663799 user: drh tags: trunk) | |
| 15:03 | Improved comments explaining the sha3_query() format. Fix a performance #ifdef error in the sha3 implementation. (check-in: 54ef7abd user: drh tags: trunk) | |
| 13:50 | Add the shathree.c extension for implementing SHA3() and SHA3_QUERY() SQL functions. (check-in: f7ca9193 user: drh tags: trunk) | |
| 12:25 | In the CLI, avoid unnecessary identifier quoting in the ".dump" output. Also add new ".dump" test cases. (check-in: de65f907 user: drh tags: trunk) | |
| 11:44 | Add the --preserve-rowids option to the ".dump" command in the CLI. (check-in: c60aee24 user: drh tags: trunk) | |
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2017-03-07
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| 20:03 | Add test script ext/rbu/rbu_round_trip.tcl. Uses "dbselftest" to test that "rbu" and "sqldiff" work together. (check-in: 961e79da user: dan tags: trunk) | |
| 14:47 | Before beginning an incremental checkpoint in RBU, sync the directory containing the target database file. This ensures that the new directory entry created by renaming the *-oal file to *-wal is synced to disk. Cherrypick of [915a9a28]. (Leaf check-in: 694fe0b2 user: dan tags: version-3.17.0-rbu-fixes) | |
| 14:46 | Fix another RBU case similar to the previous. This one for systems where the sector-size is larger than the page-size. Cherrypick of [4012bb3a]. (check-in: 59a11b7f user: dan tags: version-3.17.0-rbu-fixes) | |
| 14:45 | When saving the state of an RBU update in the incremental-checkpoint phase, sync the database file. Otherwise, if a power failure occurs and the RBU update resumed following system recovery, the database may become corrupt. Cherrypick of [edee6a80]. (check-in: 811a5599 user: dan tags: version-3.17.0-rbu-fixes) | |
| 14:38 | Performance optimization in the tokenizer/parser loop. (check-in: 2cb71583 user: drh tags: trunk) | |
| 12:18 | Minor comment typo fixes. No changes to code. (check-in: 01cd9fb1 user: drh tags: trunk) | |
| 03:40 | More size and speed improvements in the expression name resolver. (check-in: e0a3d39f user: drh tags: trunk) | |
| 03:25 | Small size reduction and performance increase in the name resolver routine for expressions. (check-in: 1a3554e1 user: drh tags: trunk) | |
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2017-03-06
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| 23:51 | Make the default MASK argument for "PRAGMA optimize" be 0xfffe, to allow for future expansion of up to 14 new default-on optimizations. (check-in: 73019a8b user: drh tags: trunk) | |
| 20:44 | Fix a typo in a comment. No changes to code. (check-in: ec529bf1 user: drh tags: trunk) | |
| 20:00 | Merge all pending 3.18 enhancements from trunk. (check-in: 1650c3f4 user: drh tags: apple-osx) | |
| 17:33 | Add an initial implementation of the "PRAGMA optimize" command. (check-in: 137aeb2b user: drh tags: trunk) | |
| 11:39 | Merge updates from trunk. (Closed-Leaf check-in: 5f7fc79a user: drh tags: auto-analyze) | |
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2017-03-03
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| 21:51 | If a reprepare is needed after binding to a variable with a number larger than 32, set only the high-order bit of the Vdbe.expmask rather than setting all bits. This could potentially result in fewer false-positive reprepares. (check-in: 45797fee user: drh tags: trunk) | |
| 21:36 | Remove an redundant function call from the date/time function implementation. (check-in: 4a04c48a user: drh tags: trunk) | |
| 20:43 | Fix another corner-case for the 'start of ...' modifier in the date/time functions. Related to ticket [6097cb92745327a1]. (check-in: 8831f439 user: drh tags: trunk) | |
| 20:02 | Fix a case introduced by [4cd2a967] where a corrupt database could cause a buffer overwrite. (check-in: 5d0455fe user: dan tags: trunk) | |
| 16:51 | Before beginning an incremental checkpoint in RBU, sync the directory containing the target database file. This ensures that the new directory entry created by renaming the *-oal file to *-wal is synced to disk. (check-in: 915a9a28 user: dan tags: trunk) | |
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2017-03-02
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| 23:40 | Fix a bug in the 'start of ...' date/time modifiers when they follow a julian day number. Fix for ticket [6097cb92745327a1]. (check-in: 081dbcfb user: drh tags: trunk) | |
| 16:56 | Fix another RBU case similar to the previous. This one for systems where the sector-size is larger than the page-size. (check-in: 4012bb3a user: dan tags: trunk) | |
| 14:51 | When saving the state of an RBU update in the incremental-checkpoint phase, sync the database file. Otherwise, if a power failure occurs and the RBU update resumed following system recovery, the database may become corrupt. (check-in: edee6a80 user: dan tags: trunk) | |
| 14:17 | Add an optional bitmask of allowed optimizations on the "PRAGMA optimize" command. The 0x01 bit is Debug Mode. (check-in: a35388ee user: drh tags: auto-analyze) | |
| 13:22 | Merge recent trunk enhancements. (check-in: c60cdb47 user: drh tags: auto-analyze) | |
| 13:13 | Make sure the Vdbe.expmask value is set correctly in sqlite3VdbeSwap(). This fixes a problem introduced by [a8fd7052]. (check-in: 29f54b89 user: drh tags: trunk) | |
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2017-03-01
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| 11:30 | Fix a use-after-free problem in the shell tool code that could occur if an SQL statement were executed after an ".open" command with invalid options. (check-in: ac760db0 user: dan tags: trunk) | |
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2017-02-27
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| 17:16 | Make PATH handling more robust in the batch tools for MSVC. (check-in: 23a8917e user: mistachkin tags: trunk) | |
| 17:06 | Improve performance of fts5 writes by writing the "averages" record once at the end of each transaction instead of every time the table is updated. (check-in: 2b210d69 user: dan tags: trunk) | |
| 16:15 | Add an sqlite3_set_last_insert_rowid() method. Use it to work around fts4 and fts5 modifying the last-insert-rowid unintuitively from within commit processing. (check-in: 952a3906 user: dan tags: trunk) | |
| 14:52 | Add an sqlite3_set_last_insert_rowid() method. Use it to work around fts4 and fts5 modifying the last-insert-rowid unintuitively from within commit processing. (Closed-Leaf check-in: fe41bb56 user: dan tags: set-last-insert-rowid) | |
| 12:23 | Remove references to special handling in virtual table methods from the documentation for sqlite3_last_insert_rowid(). (check-in: 660f9569 user: dan tags: trunk) | |
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2017-02-25
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| 20:57 | Add an 'extern "C"' block to header file sqlite3userauth.h. (check-in: ffd61fb4 user: dan tags: trunk) | |
| 17:47 | Optimize defragmentPage() in the case where the page contains either one or two free-blocks and a small number of fragmented bytes. (check-in: 4cd2a967 user: dan tags: trunk) | |
| 16:24 | Tweak the code on this branch to detect b-tree page corruption in the same cases as the trunk. (Closed-Leaf check-in: f9863b39 user: dan tags: defragmentpage-opt) | |
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2017-02-24
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| 19:58 | Optimize defragmentPage() in the case where the page contains either one or two free-blocks and a small number of fragmented bytes. (check-in: 202b1c02 user: dan tags: defragmentpage-opt) | |
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2017-02-23
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| 16:30 | Save a few bytes and a few cycles by setting Vdbe.expmask to zero for statements prepared using legacy interface sqlite3_prepare(). (check-in: a8fd7052 user: dan tags: trunk) | |
| 02:15 | Add two NEVER() operators in the sqlite3BtreeRowCountEst() routine. (check-in: 7a959f6d user: drh tags: auto-analyze) | |
| 00:58 | Do a single OP_Expire at the very end of "PRAGMA optimize", and omit the OP_Expire on ANALYZE commands invoked by the pragma. (check-in: 188300a3 user: drh tags: auto-analyze) | |
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2017-02-22
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| 20:24 | Change the name of the analyze_as_needed pragma to "optimize". Enhance the comment (which will become documentation, assuming these changes land on trunk) to explain that the optimize pragma is likely to be enhanced in various ways in future releases and that applications should not depend upon the current behavior. (check-in: 9fced545 user: drh tags: auto-analyze) | |
| 19:49 | Merge integrity_check and other improvements from trunk. (check-in: fe073905 user: drh tags: auto-analyze) | |
| 19:41 | Move a branch condition in analyze.c inside an #ifdef SQLITE_ENABLE_STAT4 block. (check-in: d6afd98d user: dan tags: trunk) | |
| 19:27 | Improve the performance of ANALYZE when SQLITE_ENABLE_STAT4 is defined. (check-in: 737a8244 user: dan tags: trunk) | |
| 18:53 | Improvements to PRAGMA integrity_check. Verify CHECK constraints. Verify NOT NULL constraints even on table that lack indexes. Verify CHECK and NOT NULL constraints with PRAGMA quick_check. (check-in: aa02bd3c user: drh tags: trunk) | |
| 18:04 | Cleanup and simplification of the output row count limit control of PRAGMA integrity_check. (Closed-Leaf check-in: 5af7d72e user: drh tags: integrity-check-improvements) | |
| 15:11 | Fix integrity_check so that it verifies NOT NULL constraints even for tables that have no indexes. Enhance quick_check so that it verifies NOT NULL and CHECK constraints. (check-in: 5264844b user: drh tags: integrity-check-improvements) | |
| 14:15 | Enhance "PRAGMA integrity_check" so that it verifies CHECK constraints. (check-in: 549bae08 user: drh tags: integrity-check-improvements) | |
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2017-02-21
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| 21:24 | In sqlite3VdbeHalt(), return as soon as possible if Vdbe.magic!=VDBE_MAGIC_RUN. This makes sqlite3_reset() slightly faster in some cases. (check-in: 80adc0cb user: dan tags: trunk) | |
| 17:52 | Fix an FTS5 problem that could cause a crash when certain queries were interrupted using sqlite3_interrupt(). (check-in: e400909f user: dan tags: trunk) | |
| 15:27 | Very small enhancement to dispatch speed for SQL functions. (check-in: 3c3228ed user: drh tags: trunk) | |
| 14:04 | The VDBE cycle counts for the sqlite3_progress_handler() callback are now cumulative. Leftovers from the previous statement are applied to the next statement. (Leaf check-in: 7a62fc6a user: drh tags: cumulative-progress-count) | |
| 13:29 | Proof of concept for a "PRAGMA vdbe_cycle_limit=N" command. When N>0, invoke sqlite3_interrupt() whenever any byte code program uses more than N virtual machine cycles. (Leaf check-in: 9626b41e user: drh tags: vdbe_cycle_limit) | |
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2017-02-20
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| 23:32 | Correct a harmless typo in the previous check-in. (check-in: 1589db01 user: mistachkin tags: trunk) | |
| 19:13 | Avoid unsigned integer overflows for SQLITE_WIN32_HEAP_INIT_SIZE when the Win32 heap subsystem is used with very large values of SQLITE_DEFAULT_CACHE_SIZE and/or SQLITE_DEFAULT_PAGE_SIZE. (check-in: 96b6a98e user: mistachkin tags: trunk) | |
| 14:30 | Small grammar simplification. (check-in: 0d8a868a user: drh tags: trunk) | |
| 13:11 | Merge fixes from trunk. (check-in: ff213f2e user: drh tags: auto-analyze) | |
|
2017-02-18
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| 22:52 | Updated comments. No code changes. (check-in: e842ad39 user: drh tags: auto-analyze) | |
| 20:05 | Add an optimization to OP_Column to speed up sequential OP_Column instructions that read earlier fields from the same cursor. Attempt to reorder OP_Column opcodes so as to take advantage of this. (Leaf check-in: c1adf959 user: dan tags: sort-column-opcodes) | |
| 15:58 | Add the OP_SqlExec opcode and use it to implement "PRAGMA analyze_as_needed", invoking ANALYZE subcommands as necessary. This simplifies the implementation. (check-in: d386015f user: drh tags: auto-analyze) | |
| 13:47 | Add the SQLITE_BUG_COMPATIBLE_20160819 compile-time option to omit the error message when an unrecognized argument is provided to the VACUUM command. (check-in: 49181427 user: drh tags: trunk) | |
| 02:42 | Fix errors in the table resize detection. (check-in: 4229caec user: drh tags: auto-analyze) | |
| 02:19 | In the analyze_as_needed pragma, avoid running unnecessary OP_LoadAnalysis and OP_Expire opcodes. Make the analyze_as_needed pragma responsive to the schema name. (check-in: 882599a4 user: drh tags: auto-analyze) | |
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2017-02-17
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| 23:52 | Fix the #endif location for an #ifndef SQLITE_UNTESTABLE macro in the command-line shell. (check-in: 8cc9d74c user: drh tags: trunk) | |
| 21:23 | Increase the estimated cost of sorting when sorting wide results sets, to account for the extra storage space and I/O required for the external sort. (Leaf check-in: 38298ef9 user: drh tags: apple-increased-sorting-cost) | |
| 19:24 | The analyze_as_needed pragma now responds to table size growth and will automatically rerun the analysis after each 10x size increase. (check-in: bfbdd074 user: drh tags: auto-analyze) | |
| 16:26 | Add the "PRAGMA analyze_as_needed" command. (check-in: e93db237 user: drh tags: auto-analyze) | |
| 15:26 | Set the TF_StatsUsed flag on tables when the query planner outcome is affected by the sqlite_stat1 data. Also, change the column names of the "PRAGMA stats" command so that they are not keywords. (check-in: fb2b8ae8 user: drh tags: auto-analyze) | |
| 13:38 | Enhance the Index and Table objects so that they remember if their stats come from the sqlite_stat1 table. Make the "PRAGMA stats" an SQLITE_DEBUG only pragma. Add the flags column to "PRAGMA stats". These are all preliminary steps toward a "PRAGMA analyze_ifneeded;" feature. (check-in: 85026c8e user: drh tags: auto-analyze) | |
| 02:07 | Merge fixes from trunk. (Leaf check-in: 662e8ccf user: drh tags: increased-sorting-cost) | |
| 02:04 | Fix a test case that was made to fail by the LIKE optimization enhancement in check-in [158290c0ab] but which went unnoticed because test builds were running with ICU enabled and ICU disables the LIKE optimization. (check-in: 218b2bbb user: drh tags: trunk) | |
| 01:43 | Enable the ".wheretrace" and ".selecttrace" extensions in the command-line shell when compiled on Windows using DEBUG=3 or higher. Fix a harmless warning in the shell that comes up when compiled this way. (check-in: 8a03be1d user: drh tags: trunk) | |
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2017-02-16
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| 21:29 | Increase the estimated cost of sorting when sorting wide results sets, to account for the extra storage space and I/O required for the external sort. (check-in: aa0703e5 user: drh tags: increased-sorting-cost) | |
| 20:52 | Change the name of WhereInfo.pDistinctSet to pResultSet, since it is now used for more than just DISTINCT processing. (check-in: 9fc5cd50 user: drh tags: trunk) | |
| 17:18 | Change two MallocZero() calls into MallocRaw() to avoid unnecessary memset(). (check-in: ff5e733c user: drh tags: trunk) | |
| 16:26 | Fix a comment on a field of the ExprList object. No changes to code. (check-in: bb8e2642 user: drh tags: trunk) | |
| 15:57 | Increase Table.tabFlags from 8 to 32 bits. (check-in: 7e14044c user: drh tags: trunk) | |
| 15:06 | Remove two redundant initializations from the virtual table logic. (check-in: 6bd82b95 user: drh tags: trunk) | |
| 14:48 | Always use the IsVirtual() macro to determine if a Table object is a virtual table. Slightly smaller and faster code. (check-in: 6affb1c8 user: drh tags: trunk) | |
| 14:02 | Merge recent enhancements from trunk. (check-in: 325ccfa9 user: drh tags: est_count_pragma) | |
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2017-02-15
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| 22:36 | Query planner optimization to detect empty tables in a join early and bail out without doing excess work. (check-in: 58797e9b user: drh tags: trunk) | |
| 18:30 | Minor enhancement to mutex tracing on Win32. (check-in: 830b9235 user: mistachkin tags: trunk) | |
| 17:47 | simple test cases for carray_asc. (Leaf check-in: 1d4759c1 user: drh tags: carray_asc) | |
| 16:11 | Add the companion "carray_asc" table-valued function to the carray extension. (check-in: a2b4f60b user: drh tags: carray_asc) | |
| 16:04 | Bummer. Checked this in as a branch off of the wrong branch.... Was: Add the companion "carray_asc" table-valued function to the carray extension. (Closed-Leaf check-in: 396b9d99 user: drh tags: mistake) | |
| 15:11 | Remove the CLANG_VERSION macro, since we have learned that version numbers in clang are "marketing" and are inconsistent and unreliable. Builds using clang will still use the GCC_VERSION macro since clang works hard to be gcc compatible. (check-in: 8d3f485d user: drh tags: branch-3.17) | |
| 15:09 | Remove the CLANG_VERSION macro, since we have learned that version numbers in clang are "marketing" and are inconsistent and unreliable. Builds using clang will still use the GCC_VERSION macro since clang works hard to be gcc compatible. (check-in: 810d2932 user: drh tags: trunk) | |
| 04:16 | Further reforms to Tcl_*Alloc() usage. (check-in: ee1e6896 user: mistachkin tags: trunk) | |
| 01:39 | In the blob test code, avoid crashing on low-memory systems by using Tcl_AttemptAlloc(). (check-in: 1d267757 user: mistachkin tags: trunk) | |
| 01:02 | Make SQLITE_GET_MUTEX_TIME a proper noop on non-Win32/non-POSIX. (Leaf check-in: 4ca2b2f8 user: mistachkin tags: mutexDbg2) | |
| 00:52 | Another compilation fix for POSIX. (check-in: 82ef47ea user: mistachkin tags: mutexDbg2) | |
| 00:45 | Make fine time granularity work on POSIX. (check-in: 79057716 user: mistachkin tags: mutexDbg2) | |
| 00:02 | Compilation fix for POSIX. (check-in: 9964ad24 user: mistachkin tags: mutexDbg2) | |
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2017-02-14
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| 23:58 | Experimental enhancements to mutex debugging. (check-in: 80481754 user: mistachkin tags: mutexDbg2) | |
| 21:47 | Clarification of the help text for the command-line shell. (check-in: ca4f1e49 user: drh tags: trunk) | |
| 20:00 | Enable the SQLITE_ENABLE_NULL_TRIM option for WITHOUT ROWID tables. (check-in: 54836270 user: drh tags: trunk) | |
| 16:30 | More realistic lengths of string values in speedtest1 with --testset orm. (check-in: e4731fd6 user: drh tags: trunk) | |
| 15:58 | Fix a testcase number on the ORM testset of speedtest1. (check-in: 58b2f911 user: drh tags: trunk) | |
| 15:57 | Add the new "--testset orm" to the speedtest1 utility. (check-in: 1836adc1 user: drh tags: trunk) | |
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2017-02-13
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| 16:17 | Merge all changes up through the 3.17.0 release. (check-in: 1913a758 user: drh tags: apple-osx) | |
| 16:02 | Version 3.17.0 (check-in: ada05cfa user: drh tags: release, version-3.17.0, branch-3.17) | |
| 13:35 | Change all legacy instances of "#if SQLITE_DEBUG" to "#ifdef SQLITE_DEBUG" for consistency. (check-in: 670f10b2 user: drh tags: trunk) | |
| 13:26 | Fix typos in using the MSVC_VERSION macro. (check-in: f3b65926 user: drh tags: trunk) | |
| 13:20 | Avoid a duplication #define in FTS5 (check-in: c447441c user: drh tags: trunk) | |
| 11:35 | Fix typos in using the MSVC_VERSION macro. (check-in: 25ebadd0 user: drh tags: branch-3.17) | |
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2017-02-11
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| 15:02 | Ensure that indexed expressions with collating sequences are handled correctly. Fix for ticket [eb703ba7b50c1a5] backported from trunk. (check-in: b2e49ae3 user: drh tags: branch-3.17) | |
| 14:59 | Fix indexes on expressions so that they can be actually used with a COLLATE clause. (check-in: e464b919 user: drh tags: trunk) | |
| 13:51 | Ensure that indexed expressions with collating sequences are handled correctly. Proposed fix for ticket [eb703ba7b50c1a5]. (check-in: 9689d04b user: drh tags: trunk) | |
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2017-02-10
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| 21:40 | Bump the version number up to 3.18.0. (check-in: 7520c238 user: drh tags: trunk) | |
| 21:37 | Enhance the LIKE optimization so that it works for arbitrary expressions on the LHS as long as the pattern on the RHS does not begin with a digit or a minus sign. (check-in: 158290c0 user: drh tags: trunk) | |
| 19:38 | Add the "," flag to printf(). (check-in: 064445b1 user: drh tags: trunk) | |
| 17:38 | Version 3.17.0 release candidate (check-in: ad867e87 user: drh tags: branch-3.17) | |
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2017-02-09
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| 17:12 | Cleanup the usage of the SQLITE_DISABLE_INTRINSIC compile-time option. Remove the SQLITE_RUNTIME_BYTEORDER compile-time option. Use -DSQLITE_BYTEORDER=0 instead. Fix a bug in R-Tree that occurs when compiling on a known little-endian machine without the use of intrinsic byteswapping functions. (check-in: 798fb9d7 user: drh tags: trunk) | |
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2017-02-08
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| 19:12 | Avoid preparing a SELECT statement each time an UPDATE or DELETE by docid is executed against an fts3 table. (check-in: 1afec575 user: dan tags: trunk) | |
| 19:10 | Avoid preparing a SELECT statement each time an UPDATE or DELETE by docid is executed against an fts3 table. (Leaf check-in: 9962c10a user: dan tags: fts3-seekstmt-cache) | |
| 18:13 | Typo fixes in comment. No changes to code. (check-in: c09dd5c0 user: mistachkin tags: trunk) | |