Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
200 most recent check-ins using file src/hwtime.h version 747c1bbe9d
|
2024-04-02
| ||
| 18:48 | Fix typos in comments. Provided ".wheretrace" debugging output for the interstage heuristic module. Do omit automatic index loops in the interstage heuristic. (Leaf check-in: 357d9513d2 user: drh tags: branch-3.28) | |
| 18:31 | Fix table-valued functions so that they will work as the right table in a LEFT JOIN. Ticket [2ae0c599b735d59e] (check-in: 1f97086d62 user: drh tags: branch-3.28) | |
| 11:54 | Add a heuristic in between the two solver() passes of the query planner that tries to prevent a very slow query plan in cases where the output row count estimate is imprecise. (check-in: 74b247d958 user: drh tags: branch-3.28) | |
|
2023-11-29
| ||
| 16:26 | Fix a duplicate assert() caused by the second cherrypick in the previous check-in. (check-in: f10d4fc4a8 user: drh tags: branch-3.28) | |
| 16:07 | Remove Window objects from the corresponding Select.pWin list when they are deleted, as they are, for example, when the ORDER BY clause is optimized out. (check-in: f9c6e6a710 user: drh tags: branch-3.28) | |
|
2023-10-19
| ||
| 21:05 | Ensure that when an ephemeral cursor is reopened with a second invocation of to OP_OpenEphemeral, the sequence counter is reset and the cache marked as stale. Fix for [9cdc5c46]. (check-in: d4bfa8d21a user: drh tags: branch-3.28) | |
|
2023-09-15
| ||
| 20:04 | Drop support for the view-scan optimization as it was causing multiple performance regressions. In its place, reduce the estimated row count for DISTINCT subsqueries by a factor of 8. (check-in: 796a65fa61 user: drh tags: branch-3.28) | |
|
2023-02-26
| ||
| 11:52 | In the [/info/7c2d3406000dc8ac|omit-unused-subquery-columns optimization], be sure to remove the EP_Skip and EP_Unlikely flags from the result set expressions that get nulled-out. dbsqlfuzz bf1d3ed6e0e0dd8766027797d43db40c776d2b15. Also fix an incorrect ".selecttrace" code block. (check-in: 83a7f13edb user: drh tags: branch-3.28) | |
|
2023-02-16
| ||
| 21:01 | Fix an #ifdef that uses a different macro name from the main branch. (check-in: ad6ac5d3e8 user: drh tags: branch-3.28) | |
| 19:04 | Back-port omit-unused-subquery-column enhancements into the 3.28 branch. (check-in: 57a4e91f43 user: drh tags: branch-3.28) | |
| 14:29 | Do not compute result columns of subqueries that are never used. Make those columns NULL instead. This optimization potentially resolves the enhancement request described by [baa5bb76c35a124c|ticket baa5bb76c35a124c]. (check-in: 0163b697dd user: drh tags: branch-3.28) | |
| 01:29 | Do not compute unused result columns of subqueries. This optimization will potentially resolve the performance optimization request of [baa5bb76c35a124c|ticket baa5bb76c35a124c]. (Closed-Leaf check-in: 0c21b6a5f8 user: drh tags: branch-3.26) | |
| 01:21 | Update test cases so that they work with TCL 8.7 and later. (check-in: e9b762de0e user: drh tags: branch-3.26) | |
|
2023-02-15
| ||
| 13:00 | Update the configure script so that it contains the correct version number. (check-in: a7cbf30808 user: drh tags: branch-3.26) | |
|
2022-10-24
| ||
| 13:50 | Improve the ability of the query planner to recognize covering indexes even on tables with more than 63 columns and where the index is over columns beyond the 63rd column. (check-in: 3d1992de47 user: drh tags: branch-3.28) | |
|
2022-10-19
| ||
| 11:22 | If a query uses an index where one or more of the columns of the index is an expression and if the corresponding expression is used elsewhere in the query, then strive to read the value of the expression out of the index, rather than recomputing it. This is the "Indexed Expression Optimizations". (check-in: 3da1032878 user: drh tags: branch-3.28) | |
|
2022-09-27
| ||
| 17:00 | Fix a potential division by zero error in this version of RBU that might occur if an external client checkpoints a wal file created by a suspended RBU process. (Leaf check-in: 73edd93adf user: dan tags: branch-3.14) | |
|
2022-09-01
| ||
| 10:41 | In the query planner, add a heuristic that will reduce the cost of a full table scan for a materialized view or subquery if the full scan is the outer-most loop. This is shown to speed up some queries. (check-in: e3754cc188 user: drh tags: branch-3.28) | |
|
2022-08-10
| ||
| 17:03 | Merge the branch-3.28a fixes into branch-3.28. (check-in: ba6bf33147 user: drh tags: branch-3.28) | |
|
2022-08-09
| ||
| 20:22 | Fix a rounding error caused by scalar->logarithm->scalar conversion when using stat4 data to estimate some range scans. (check-in: 68d86f2b20 user: drh tags: branch-3.28) | |
|
2021-08-11
| ||
| 18:56 | Fix an RBU problem with restarting an update after the *-oal file is already larger than 4GiB. (Leaf check-in: 56869f54f3 user: dan tags: rbu-replace-hack) | |
| 18:44 | If the special "sqlite_rbu_replace_hack" table is present in an RBU database, use REPLACE instead of INSERT when writing index entries to imposter tables. (check-in: 4b73e151cd user: dan tags: rbu-replace-hack) | |
|
2021-07-13
| ||
| 15:30 | Remove two incorrect assert() statements from the logic used to derive column names and types from subqueries. This allows the SQL associated with CVE-2020-13871 (ticket [c8d3b9f0a750a529]) to be tested. (Closed-Leaf check-in: d2e6722037 user: dan tags: branch-3.28a) | |
|
2021-07-12
| ||
| 14:38 | Fix a defect in the query-flattener optimization identified by ticket [8f157e8010b22af0]. This fix is associated with CVE-2020-15358. (check-in: 9e001b635f user: dan tags: branch-3.28a) | |
|
2020-10-22
| ||
| 18:58 | Minor tweaks to query planning weights so that when STAT4 is enabled and functioning, a full table scan is more likely to be selected if that seems like the fastest solution. Only do this when STAT4 info is available because an error has a large potential downside. (check-in: 263293f1e6 user: drh tags: branch-3.28) | |
|
2020-10-02
| ||
| 13:57 | Import further corner-case fixes for the in-scan-vs-index or OP_SeekScan optimization from trunk. (check-in: c144d6404f user: drh tags: branch-3.28) | |
| 12:11 | For the OP_SeekScan optimization, the OP_IdxGT does not necessarily come right after the OP_SeekGE. So use the P2 operand of OP_SeekScan to point to the first instruction after OP_IdxGT. Problem found by dbsqlfuzz. (check-in: ec37744c6e user: drh tags: branch-3.28) | |
| 02:07 | Disable the OP_SeekScan opcode of the in-scan-vs-index optimization when in PRAGMA reverse_unordered_selects mode, as the OP_SeekScan only works with forwards scans. Thanks to OSSFuzz for pointing out the problem to us. (check-in: 9a1cdf7e9c user: drh tags: branch-3.28) | |
|
2020-09-30
| ||
| 18:22 | Improved query optimization for multi-column indexes where the second or later columns are constrained by an IN operator and the earlier index columns limit the search to a small number of rows. Use the new OP_SeekScan opcode which does scanning of the relevant range of the index but gives up and falls back to doing a seek if the number of rows scanned grows to large, in order to guard against pathological cases where the estimated number of rows to be scanned is far too small. (check-in: f07ac3fb38 user: drh tags: branch-3.28) | |
|
2020-09-01
| ||
| 02:02 | Improvements to the IN-early-out optimization so that it works more efficiently when there are two or more indexed IN clauses on a single table. (check-in: 49b7631e86 user: drh tags: branch-3.28) | |
|
2020-08-31
| ||
| 19:19 | An attempt to improve the performance of the IN-early-out optimization (see check-in [09fffbdf9f2f6ce3]) by avoiding unnecessary calls to the b-tree search algorithm in OP_IfNoHope when the index key is at hand and the same answer can be obtained by doing a quick key comparison. <b>Update:</b> Experiment did not work out. (Closed-Leaf check-in: 8301da31d0 user: drh tags: branch-3.28-in-early-out-fail) | |
|
2020-08-17
| ||
| 21:03 | When doing an UPDATE or DELETE using a multi-column index where only a few of the earlier columns of the index are useful for the index lookup, postpone doing the main table seek until after all WHERE clause constraints have been evaluated, in case those constraints can be covered by unused later terms of the index, thus avoiding unnecessary main table seeks. (check-in: 0ecda43371 user: dan tags: branch-3.28) | |
|
2020-05-06
| ||
| 18:46 | Provide the SQLITE_DEFAULT_LEGACY_ALTER_TABLE compile-time option. (check-in: b2325a6e1c user: drh tags: branch-3.28) | |
|
2020-01-17
| ||
| 15:33 | More restrictions on changes to shadow tables when in defensive mode. (check-in: b302b260ca user: drh tags: branch-3.28) | |
| 15:24 | Validate the type, name, and tbl_name fields of the sqlite_master table when loading the schema, unless writable_schema is engaged. (check-in: 3d13fbf248 user: drh tags: branch-3.28) | |
| 14:56 | Do not allow shadow tables to be dropped in defensive mode. (check-in: ad1f760f16 user: drh tags: branch-3.28) | |
| 14:30 | Import the 3.31.0-beta FTS3/4 code directly into the 3.28 branch, thus providing 3.28 with all the latest 3.31 fixes. FTS3 has not been enhanced to use any core functionality that was not already available in 3.23, so no modifications were made to FTS3 sources for this import. (check-in: be4269c624 user: drh tags: branch-3.28) | |
| 14:18 | Import all FTS3/4 enhancements and fixes that exist on the latest trunk (3.31.0-beta) that do not require extensive change to the SQLite core into the 3.22 branch. Basically, the 3.31.0 FTS3 sources are copied into 3.22.0, with minor changes to work around core enhancements that are not available in 3.22.0. (Leaf check-in: cbcbb1e5a9 user: drh tags: branch-3.22) | |
|
2019-12-19
| ||
| 03:14 | More restrictions on changes to shadow tables when in defensive mode. (Leaf check-in: 4146c629c6 user: drh tags: branch-3.30) | |
|
2019-11-19
| ||
| 21:22 | Enhancements to DBSTAT: (1) Make name=? queries efficient. (2) Add the ability to aggregate results across each individual btree using the aggregate=TRUE constraint in the WHERE clause. (check-in: a48f6e1759 user: drh tags: trunk) | |
| 18:48 | Get the aggregate=TRUE feature working on the DBSTAT virtual table. (Closed-Leaf check-in: 16fef3db06 user: drh tags: dbstat-enhancements) | |
| 14:01 | Begin an enhancement effort for the built-in DBSTAT virtual table. (check-in: 9b5722f0fe user: drh tags: dbstat-enhancements) | |
| 00:13 | Make the result of sqlite3_normalized_sql() survive its statement being reprepared. (check-in: 4330f0795d user: mistachkin tags: trunk) | |
|
2019-11-18
| ||
| 23:48 | Add support for the SQLITE_ACCESS_SYMLINK flag in the Win32 VFS. (check-in: 175c15008e user: mistachkin tags: trunk) | |
| 22:34 | Ensure all file names passed to the VFS layer are double-zero terminated. (check-in: 251230cf43 user: mistachkin tags: trunk) | |
| 18:43 | In the SQLITE_OPEN_NOFOLLOW processing, distinguish between an I/O error on the xAccess() call and an actual symlink encounter. (check-in: 2e98b42fcb user: drh tags: trunk) | |
| 17:46 | Add support for SQLITE_OPEN_NOFOLLOW. (check-in: cb79c82849 user: drh tags: trunk) | |
| 14:04 | Improvements to detection of corruption in the %_stat shadow table of FTS4. (check-in: 6b67eba54e user: drh tags: trunk) | |
| 12:04 | Further improvements to shadow table corruption detection in FTS3. (check-in: e35d8c76aa user: drh tags: trunk) | |
| 11:14 | Detect and prevent infinite recursion in fts3SelectLeaf() due to a malformed FTS3 btree. (check-in: dfcf081d84 user: drh tags: trunk) | |
| 10:37 | Improved detection of corruption in the %_stat table of FTS4. Chromium ticket 1025467. (check-in: 10f8a3b718 user: drh tags: trunk) | |
|
2019-11-17
| ||
| 11:47 | Fix an assert that can fail if the schema is corrupt. (check-in: ed57c48e4b user: drh tags: trunk) | |
| 02:41 | Better detection of corruption in the %_stat and %_docsize shadow tables of FTS3. (check-in: 1e44968788 user: drh tags: trunk) | |
| 00:08 | Remove a reachable NEVER() in FTS3. (check-in: 8bd75bf636 user: drh tags: trunk) | |
|
2019-11-16
| ||
| 23:47 | More improvements to shadow table corruption detection in FTS3. (check-in: 51525f9c32 user: drh tags: trunk) | |
| 21:40 | Improved detection of corrupt shadow tables in FTS3. Enable the debugging special-inserts for FTS3 for both SQLITE_DEBUG and SQLITE_TEST. (check-in: 04b2873be5 user: drh tags: trunk) | |
| 18:36 | Do not allow shadow tables to be dropped in defensive mode. (check-in: 0a988ce340 user: drh tags: apple-osx) | |
| 18:30 | Modify three test cases so that they work even with unusual versions of the library printf(). (check-in: c25289075a user: drh tags: apple-osx) | |
| 16:54 | More restrictions on changes to shadow tables when in defensive mode. (check-in: bae76a5c40 user: drh tags: trunk) | |
| 14:15 | Do not allow CREATE TABLE or CREATE VIEW of an object with a name that looks like a shadow table name. (Closed-Leaf check-in: 6aef58b629 user: drh tags: defensive-improvements) | |
| 13:51 | Break out the test for writable shadow tables into a separate subroutine. (check-in: 8ad34d36a1 user: drh tags: defensive-improvements) | |
| 12:04 | Do not allow shadow tables to be dropped in defensive mode. (check-in: 70390bbca4 user: drh tags: trunk) | |
| 11:33 | Fix a potential NULL pointer dereference on a RENAME TABLE that references a VIEW with a logic error in a window function in the ORDER BY clause. (check-in: 0adb273f7e user: drh tags: trunk) | |
|
2019-11-15
| ||
| 21:16 | Modify three test cases so that they work even with unusual versions of the library printf(). (check-in: 8f4a3750b7 user: drh tags: trunk) | |
| 02:52 | Merge the version 3.30.1 changes into the apple-osx branch. (check-in: 2c8af35206 user: drh tags: apple-osx) | |
| 00:52 | Fix table-valued functions so that they will work as the right table in a LEFT JOIN. Ticket [2ae0c599b735d59e] (check-in: 2c35d3f67b user: drh tags: trunk) | |
|
2019-11-14
| ||
| 23:08 | Backport support for the sqlite3_hard_heap_limit64() interface and the hard_heap_limit pragma to the 3.30 branch. (check-in: ba27012d43 user: drh tags: branch-3.30) | |
| 18:07 | Add support for the sqlite3_hard_heap_limit64() interface and the hard_heap_limit pragma. (check-in: 6399c47ea8 user: drh tags: trunk) | |
| 17:46 | Fix a bug in the hard_heap_limit pragma so that it returns the new value of the hard_heap_limit, not the soft_heap_limit. Change SQLITE_MAX_MEMORY so that it works by setting the default hard_heap_limit value. (Closed-Leaf check-in: 33fd0c3abc user: drh tags: hard-heap-limit) | |
| 15:21 | Merge recent enhancements from trunk. (check-in: b8a631fd30 user: drh tags: hard-heap-limit) | |
| 15:10 | Minor documentation enhancements. No changes to code. (check-in: 6153f3aada user: drh tags: hard-heap-limit) | |
| 13:57 | New test cases added to fuzzdata8.db. (check-in: 5baffcda7d user: drh tags: trunk) | |
| 13:24 | Ensure that the same subquery does not go through the window-function rewrite more than once, even when that subquery is part of a virtual table constraint that lacks the omit flag. (check-in: d0bc7db6b0 user: drh tags: trunk) | |
|
2019-11-13
| ||
| 18:50 | Add header guard to the expert extension. (check-in: 7e3151855f user: mistachkin tags: trunk) | |
| 16:50 | Fix the sqlite3TreeView() output to consistently use a colon and not a comma after the table number in the AST dumps. (check-in: fa2416f623 user: drh tags: trunk) | |
|
2019-11-12
| ||
| 16:21 | For for the previous check-in: Always enable the nUri variable, even when debugging is turned off. (check-in: f84a15394c user: drh tags: trunk) | |
| 14:43 | Ensure that the main filename and the journal filenames in the pager object are all correctly double-zero terminated. (check-in: df51ae19c1 user: drh tags: trunk) | |
| 03:45 | Remove a harmless unused variable. (check-in: 28091a48aa user: drh tags: trunk) | |
|
2019-11-11
| ||
| 15:13 | Remove an asm() block from build tool mksourceid.c, as it causes build failures on some systems and performance is not important at build-time. (check-in: 8e100e6c35 user: dan tags: trunk) | |
|
2019-11-10
| ||
| 11:09 | Proper surrogate pair decoding added to JSON functions. See the mailing list bug report and [https://bugs.python.org/issue38749]. More test cases needed here, but it seems to work so far. (check-in: 51027f08c0 user: drh tags: trunk) | |
| 10:08 | Remove an incorrect ALWAYS() macro. (check-in: f7a74f89db user: drh tags: trunk) | |
|
2019-11-09
| ||
| 15:31 | Change the COLFLAG_NOTAVAIL bitmask so that it fits in the single-byte Walker.eCode field. (check-in: 53847f5c28 user: drh tags: trunk) | |
| 14:44 | New dbsqlfuzz test cases added. (check-in: 18c3a17dc8 user: drh tags: trunk) | |
| 14:38 | Make sure the WITH stack in the Parse object is disabled following an error. (check-in: de6e6d6846 user: drh tags: trunk) | |
|
2019-11-08
| ||
| 20:13 | When a virtual table reports orderByConsumed, that tells us nothing about whether or not the SQLITE_DISTINCTBY constraint is met. Fix for ticket [7e59041f9c4e5102]. Test cases in TH3. (check-in: b59f94e4da user: drh tags: trunk) | |
|
2019-11-07
| ||
| 19:59 | Experimental branch to provide SQLITE_LIMIT_HEAP_K to limit the amount of allocated memory used by each database connection, individually. (Leaf check-in: 4ab9dbb939 user: drh tags: limit_heap_k) | |
| 14:51 | Fix the xferCompatibleIndex() function so that it recognizes that a PRIMARY KEY index for a WITHOUT ROWID table is different from a UNIQUE constraint index on the primary key. Ticket [302027baf1374498] (check-in: 34f64f11ca user: drh tags: trunk) | |
| 02:32 | Restore generated column loop detection logic that was incorrectly removed from the previous check-in [9e07b48934e9a972]. This fixes ticket [299b50ba812d8e54] (check-in: 104a2beb57 user: drh tags: trunk) | |
|
2019-11-06
| ||
| 22:19 | Change the way generated columns are computed so that no column is computed inside branch code that might not be taken. Ticket [4fc08501f4e56692] (check-in: 9e07b48934 user: drh tags: trunk) | |
| 19:25 | Minor simplification to the changes from check-in [36c11ad51f]. (check-in: 7bc8205dd9 user: mistachkin tags: trunk) | |
| 17:31 | Fix the OP_DeferredSeek index-to-table column map in P4 so that it works with generated columns. Ticket [ce22a07731530118] (check-in: 36c11ad51f user: drh tags: trunk) | |
| 14:49 | Fix the handling of NOT NULL constraint violations for generated columns in a REPLACE statement. Ticket [2399f5986134f79c] (check-in: 77b1c90add user: drh tags: trunk) | |
|
2019-11-04
| ||
| 12:49 | Changes an unreachable testcase() into an assert(). (check-in: 5710845b63 user: drh tags: trunk) | |
| 02:05 | Fix a false-postive in the sqlite3ExprImpliesNonNullRow() decision routine, that resulted in an incorrect LEFT JOIN strength reduction when the WHERE clause contained a row-value comparison. Ticket [02aa2bd02f97d0f2] (check-in: ea20068e6d user: drh tags: trunk) | |
|
2019-11-03
| ||
| 00:07 | The optimization of check-in [9b2879629c34fc0a] is incorrectly reasoned. The WHERE clause of the partial index might not be true if the table of the partial index is the right table of a left join. So disable the optimization in that case. Ticket [623eff57e76d45f6] (check-in: 3be19e1151 user: drh tags: trunk) | |
|
2019-11-02
| ||
| 17:59 | Fix a problem in VIEW creation that was introduced by the generated columns feature. (check-in: 9c795c4d2b user: drh tags: trunk) | |
| 13:45 | "STORED" is not actually a keyword. The parser looks for STORED as an ordinary identifier. (check-in: 167cd574d6 user: drh tags: trunk) | |
| 13:32 | In sqlite3GenerateIndexKey(), do not attempt to reuse column values from the previous index if the current index is a partial index as the partial index test may have changed those values. Ticket [a9efb42811fa41ee] (check-in: 17e9f65814 user: drh tags: trunk) | |
| 00:00 | Restore the on-line ".help" for the ".explain" command in the CLI. (check-in: 28b8f1036d user: drh tags: trunk) | |
|
2019-11-01
| ||
| 18:52 | Fix a harmless compiler warning. (check-in: f0ebea35d9 user: drh tags: trunk) | |
| 17:31 | The SET DEFAULT and SET NULL conflict resolution actions for foreign key constraints should cause an error when they appear on a generated column. (check-in: b47513d2b3 user: drh tags: trunk) | |
| 16:37 | Fix a potential use-after-free bug that follows an OOM error in code added two days ago by check-in [84e02d773d60cffe]. Problem discovered by OSSFuzz. (check-in: 0a2eb949f8 user: drh tags: trunk) | |
| 16:08 | Add another missing column number translation to the foreign key logic. (check-in: 32df5edcfe user: drh tags: trunk) | |
| 15:19 | Omit the optimization that reduces the column-count on rowid-table cursors when the table has generated columns, because we do not know what columns the generator expressions might try to access. (check-in: e6c96ed91e user: drh tags: trunk) | |
| 13:37 | Fix an fts3 assert() that could fail when operating on a database containing corrupt records. (check-in: 7c52f5478f user: dan tags: trunk) | |
| 12:14 | Add missing column translations to foreign key logic. Ticket [c28a01da72f8957c] (check-in: bc6a43e7ee user: drh tags: trunk) | |
| 10:49 | Fix a potential array bounds overflow in the mkkeywordhash.c code generator. Also add marks to omit keywords specific to generated columns when building with -DSQLITE_OMIT_GENERATED_COLUMNS. (check-in: cc6a408183 user: drh tags: trunk) | |
| 02:30 | Slightly faster keyword hash table. (check-in: f12e743e19 user: drh tags: trunk) | |
|
2019-10-31
| ||
| 20:54 | Correctly generate pre-UPDATE content for virtual columns that are used by foreign key constraints. Ticket [b9befa4b83a660cc] (check-in: 40d3282ec2 user: drh tags: trunk) | |
| 17:13 | Add a few simple TCL test cases for generated columns. (Full test coverage of the generated column logic is provided separately by TH3.) (check-in: acedb5c7f7 user: drh tags: trunk) | |
| 13:16 | Ignore differences in Expr.op2 in sqlite3ExprCompare() in cases where it does not matter. Ticket [1d2a8efc6c3a595a]. (check-in: 329820673a user: drh tags: trunk) | |
| 12:30 | Enhance the TreeView logic to show information about Expr.op2 for FUNCTION and COLUMN nodes. (check-in: aceeaf9e28 user: drh tags: trunk) | |
|
2019-10-30
| ||
| 18:50 | Always disallow the use of non-deterministic functions in CHECK constraints, even date/time functions that use the 'now' or similar keywords. Provide improved error messages when this requirement is not met. Ticket [830277d9db6c3ba1] (check-in: 2978b65ebe user: drh tags: trunk) | |
| 16:29 | Simplify the bytecode generation for SQL function calls such that the OP_Function or OP_PureFunc opcodes are coded directly, rather than using the intermediate OP_Function0 or OP_PureFunc0 - opcodes that are now removed. (check-in: 84e02d773d user: drh tags: trunk) | |
| 13:00 | New tokens ALWAYS, GENERATED, and STORED used by generated columns should all be fallback tokens. (check-in: 13fe6978b7 user: drh tags: trunk) | |
|
2019-10-29
| ||
| 16:18 | Remove the legacy_file_format PRAGMA. In its place, provide the SQLITE_DBCONFIG_LEGACY_FILE_FORMAT option to sqlite3_db_config(). Fix for ticket [6484e6ce678fffab] (check-in: 4d424f3047 user: drh tags: trunk) | |
| 03:39 | Tighten the generated column requirement such that every table must have at least one non-generated column. Ticket [166347c6fc994155]. (check-in: 4fba090e67 user: drh tags: trunk) | |
| 03:30 | Add a missing translation from table column numbers to storage table numbers while processing constraints on an UPDATE statement. Ticket [9621dd78a024d07a] (check-in: 361ea81ae8 user: drh tags: trunk) | |
| 01:26 | Disallow tables that have only virtual columns. (check-in: 591973217f user: drh tags: trunk) | |
|
2019-10-28
| ||
| 13:54 | Fix a problem in fts3 causing it to report corruption if a doclist contains consectutive rowid entries that differ by more than 2^63. (check-in: 0b0a3048f9 user: dan tags: trunk) | |
| 13:07 | Remove a NEVER() comparison from sqlite3ExprCompare(). (check-in: f4285297e1 user: drh tags: trunk) | |
| 04:20 | ALWAYS macro added for coverage. (check-in: a1e1ba9145 user: drh tags: trunk) | |
|
2019-10-27
| ||
| 22:22 | Improved detection of attempts to use a generated column as part of the primary key. Ticket [91e86951016a6802] (check-in: 6d1bbba9a0 user: drh tags: trunk) | |
|
2019-10-26
| ||
| 23:51 | Remove code from the constraint checker that generates virtual column values with the incorrect time. Turns out the the regular code for all other columns works correctly and so the incorrect special-case code is not actually needed. Fix for ticket [3ea175512444b0d1]. (check-in: 5b4c0f2ddc user: drh tags: trunk) | |
| 18:56 | Remove redundant code resulting from a merge error on the previous check-in. (check-in: 713fe86b8c user: drh tags: trunk) | |
| 18:47 | Add support for generated columns. (check-in: b855acf183 user: drh tags: trunk) | |
| 17:08 | Performance optimization on sqlite3GenerateConstraintChecks() - bypass the loop that checks each column for NOT NULL constraints if it is known in advance that the table has no NOT NULL constraints. (check-in: e3c3f4d787 user: drh tags: trunk) | |
| 16:38 | Clarify some comments and add assert() and testcase() macros to the replace-trigger recheck logic for ticket [c1e19e12046d23fe] (check-in: 8c0042bd5c user: drh tags: trunk) | |
| 16:02 | Fix a problem in the legacy ".explain on" formatting when it is used on a query with more than 8 output columns. (check-in: 070b49825c user: drh tags: trunk) | |
| 15:40 | Minor changes to help ensure the pointer returned by sqlite3VdbeGetOp() is not used after it becomes invalid. (check-in: 346bdd49fb user: drh tags: trunk) | |
| 12:27 | Overnight, OSSFuzz helpfully pointed out a potential use-after-free bug in yesterdays changes, involving continued use of a pointer after the memory pointed to had been realloc()-ed. Thanks Google. (check-in: c422afb507 user: drh tags: trunk) | |
| 01:43 | Add missing VdbeCoverage() macro. Fix an off-by-one error in partial index handling. New test cases. Ticket [c1e19e12046d23fe] (check-in: 41cc8e3dab user: drh tags: trunk) | |
| 00:04 | If replace triggers are run during uniqueness checking, then rerun all uniqueness checks a second time using the ABORT algorithm. Fix for ticket [c1e19e12046d23fe] (check-in: fbac0c65d8 user: drh tags: trunk) | |
|
2019-10-25
| ||
| 14:46 | Performance optimization in sqlite3BtreeCursor(). (check-in: ea068b099c user: drh tags: trunk) | |
|
2019-10-24
| ||
| 23:43 | Merge fixes from trunk. (Closed-Leaf check-in: 4ec57d8841 user: drh tags: generated-columns) | |
| 21:02 | The previous fix was incomplete. It is also necessary to disable the Expr.y.pTab field when making the translation. (check-in: b99d570131 user: drh tags: generated-columns) | |
| 20:35 | In fts5, fix a case of overreading a buffer by 1 byte when counting characters in malformed utf-8. Fix for [dd1f67bf]. (check-in: 8d964e1c21 user: dan tags: trunk) | |
| 20:29 | Fix handling of covering indexes that use virtual columns. (check-in: e0f7e321ec user: drh tags: generated-columns) | |
| 19:35 | Correction to check-in [bec5b6d4d083556d] so that it detects *all* triggers that might perturb the insertion cursor. Ticket [50c09fc2cf0d91ce]. (check-in: 521f1d3628 user: drh tags: trunk) | |
| 01:04 | Do not allow ALTER TABLE ADD COLUMN for a STORED column. (check-in: 42fc08bc15 user: drh tags: generated-columns) | |
|
2019-10-23
| ||
| 21:00 | Add an experimental set of UUID processing functions as the uuid.c extension in ext/misc/uuid.c. (check-in: 1a6e009372 user: drh tags: trunk) | |
| 18:14 | Add uuid_string and uuid_blob functions (Leaf check-in: 97ba442b8d user: numist tags: uuid-funcs) | |
| 18:09 | When a vector comparison appears in the WHERE clause and the constraint side has a COLLATE clause on the first term of the vector, be sure to honor that COLLATE clause. Ticket [135c9da7513e5a97]. (check-in: 978b2d20cf user: drh tags: trunk) | |
| 18:01 | Create new branch named "uuid-funcs" (check-in: 815dc0437c user: numist tags: uuid-funcs) | |
| 15:47 | Minor adjustments for clarity and test coverage. (check-in: 3006571687 user: drh tags: generated-columns) | |
| 03:53 | Fix incorrect arguments to testcase() macros. (check-in: 812467fbf0 user: drh tags: generated-columns) | |
| 00:31 | Fix the foreign key logic to be compatible with generated columns. (check-in: 3de57145a1 user: drh tags: generated-columns) | |
|
2019-10-22
| ||
| 21:01 | Take the declared column time into account when computing the values for generated columns, and apply appropriate affinity. (check-in: 9e04ba22df user: drh tags: generated-columns) | |
| 20:16 | Merge the row-value fix from trunk. (check-in: 1fbd743861 user: drh tags: generated-columns) | |
| 19:51 | Disqualify row-value comparisons for use by an index if the right-hand side has an affinity that does not match the index. Fix for ticket [6ef984af8972c2eb] (check-in: 5c118617cf user: drh tags: trunk) | |
| 15:45 | Do not allow generated columns in the PRIMARY KEY. (check-in: 1a54743a3d user: drh tags: generated-columns) | |
| 13:59 | In UPDATE processing, include generated columns in the set of columns being updated if and only if their generator expressions reference some other column that is being updated. (check-in: d38176e93a user: drh tags: generated-columns) | |
| 13:01 | New testcase() macros. Fix a problem with INSERT when the IPK is to the right of generated columns. (check-in: 412799fc55 user: drh tags: generated-columns) | |
| 12:02 | Merge changes on trunk into the generated-columns branch. (check-in: ba123b8c20 user: drh tags: generated-columns) | |
| 11:29 | Previous check-in to fix [b47e3627ecaadbde] was incomplete. This check-in completes the fix and adds a test cases. (check-in: c7da1c01f1 user: drh tags: trunk) | |
| 01:00 | Move the sqlite3LocateCollSeq(), sqlite3FindCollSeq(), and sqlite3GetCollSeq() routines so that they are all beside one another in the callback.c source file. No logic changes. (check-in: 9ff80a9bf8 user: drh tags: trunk) | |
| 00:03 | When flipping ("commuting") a comparison operator, set the new EP_Commuted bit rather than adding extra EP_Collate bits, to single later processing that the order of precedence for COLLATE operators is inverted. Fix for ticket [b47e3627ecaadbde] (check-in: 90f7c47735 user: drh tags: trunk) | |
|
2019-10-21
| ||
| 23:41 | Add a VdbeCoverage() macro that was omitted from check-in [eea1e7aa57e74c43]. (check-in: cd2317d04c user: drh tags: trunk) | |
| 16:15 | Try to fix a harmless compiler warning reported by ICC. (check-in: 7f41b44ca2 user: drh tags: trunk) | |
| 01:04 | Changes to the INSERT logic to make it simpler and faster and so that it works with generated columns and BEFORE triggers. (check-in: bc368cb090 user: drh tags: generated-columns) | |
|
2019-10-20
| ||
| 08:26 | Fix a resource leak in fts5 that could occur if an auxiliary function is called from within a query that does not use the full-text index. (check-in: b528bdcd45 user: dan tags: trunk) | |
|
2019-10-19
| ||
| 18:47 | Work toward getting generated columns to work with triggers. Still more work to do in this area. (check-in: 932a37275d user: drh tags: generated-columns) | |
| 15:01 | Add testcase macros. (check-in: fb9c9bb284 user: drh tags: generated-columns) | |
| 13:29 | Refactor names of column index transformation functions, for clarity. Get generated columns working with ALTER TABLE RENAME COLUMN. (check-in: 27ab41c910 user: drh tags: generated-columns) | |
|
2019-10-18
| ||
| 22:54 | Use an allocation count and freelist instead of a membership bitfield in the mini lookaside allocator (Leaf check-in: 9496b4d378 user: numist tags: 2-size-lookaside) | |
| 18:33 | Fixes for WITHOUT ROWID tables with VIRTUAL columns and an INTEGER PRIMARY KEY. (check-in: 86074da0fd user: drh tags: generated-columns) | |
| 17:47 | Merge trunk enhancements into the generated-columns branch. (check-in: 85bc4524d7 user: drh tags: generated-columns) | |
| 17:42 | Get generated columns working for WITHOUT ROWID tables. (check-in: 9f409649ec user: drh tags: generated-columns) | |
| 15:58 | Enhance the ".imposter" command in the CLI so that the first argument can be an existing WITHOUT ROWID table instead of an index. The resulting imposter is the same table, but with columns in storage order and with all constraints removed. (check-in: 9dc0d34586 user: drh tags: trunk) | |
| 12:52 | Claw back some performance from the sqlite3ExprGetColumnOfTable() routine. (check-in: e8426acb94 user: drh tags: generated-columns) | |
| 12:14 | Fix sqlite3ColumnOfIndex() to account for virtual columns. (check-in: 447271123e user: drh tags: generated-columns) | |
| 10:05 | Get indexes working on virtual columns. (check-in: 450c48766c user: drh tags: generated-columns) | |
| 02:19 | STORED columns can now reference other STORED columns, in any order, as long as there are not loops. (check-in: 0d236698e6 user: drh tags: generated-columns) | |
|
2019-10-17
| ||
| 18:35 | In the Table object, change the nVCol field to nNVCol - the number of non-virtual columns, as that is the quantity that we need most. (check-in: 4ad66af04a user: drh tags: generated-columns) | |
| 18:07 | Bug fix with INSERT using an explicit column list on a table with a non-final STORED column. (check-in: 61b4459ae6 user: drh tags: generated-columns) | |
| 17:54 | Some (but not all) INSERT and UPDATE statements now work for STORED columns. (check-in: fe7517bf4d user: drh tags: generated-columns) | |
| 16:16 | Fix the xfer optimization for generated columns, so that VACUUM works again. (check-in: 8f67b89b04 user: drh tags: generated-columns) | |
| 15:59 | Basic UPDATE functionality working for VIRTUAL columns. (check-in: c21959d4eb user: drh tags: generated-columns) | |
| 15:41 | Avoid an infinite loop in fts3/4 incremental-merge in the case where the lowest level in the database contains segments but no data (because there is a delete-marker for each valid entry). Fix for [bf1aab89]. (check-in: 35beaee059 user: dan tags: trunk) | |
| 14:21 | Bug fixes so that "make test" once against runs with no errors. (check-in: 7bfe0f679d user: drh tags: generated-columns) | |
| 13:15 | Fix the table_info and table_xinfo pragmas so that they work with virtual columns. Table_info omits virtual columns. Table_xinfo gives them a "hidden" flag of 2, and 3 for STORED columns. (check-in: 069351b85f user: drh tags: generated-columns) | |
|
2019-10-16
| ||
| 22:01 | INSERT with named columns for a table with generated columns. (check-in: 64db39f92d user: drh tags: generated-columns) | |
| 20:05 | ALTER TABLE is able to add a VIRTUAL column. (check-in: 120c6b78cb user: drh tags: generated-columns) | |
| 19:31 | Simple INSERT and SELECT operations working with VIRTUAL columns. (check-in: 7f9f90b1b8 user: drh tags: generated-columns) | |
| 17:46 | Enhancements to SQL query normalization for UPDATE statements. (check-in: bba975c7af user: mistachkin tags: trunk) | |
| 14:56 | If an AFTER DELETE trigger fires when a conflict row is deleted by REPLACE conflict resolution, make sure the conflict really has been resolved and that the trigger did not recreate the row before continuing. Ticket [a8a4847a2d96f5de] (check-in: eea1e7aa57 user: drh tags: trunk) | |
| 12:18 | Initial experimental code for generated column support. Non-functional. (check-in: 11d472c1df user: drh tags: generated-columns) | |
|
2019-10-15
| ||
| 19:01 | Formatting change on a multi-line conditional, for improved clarity. No logic changes. (check-in: 7248e34765 user: drh tags: trunk) | |
|
2019-10-14
| ||
| 20:32 | Futher improvements to the IN operator for row-values on virtual tables. (check-in: bc751fb64d user: drh tags: trunk) | |
| 15:24 | New test cases in test/fuzzdata8.db. (check-in: 344d9cb0c7 user: drh tags: trunk) | |
| 15:15 | Fix a problem with row-value IN(...) operators and virtual tables. (check-in: aa57d7abac user: dan tags: trunk) | |
|
2019-10-12
| ||
| 23:38 | When Select-Trace is enabled (in debugging builds only) do not show the result of Window function tree rewrites if there are no window functions. (check-in: d1acf72ae1 user: drh tags: trunk) | |
|
2019-10-11
| ||
| 18:55 | Update the zipfile extension to use deflateBound(), instead of compressBound(), to learn the maximum possible size of a deflate()d buffer. (check-in: f5ee30426e user: dan tags: trunk) | |
| 17:14 | Futher improvements to LEFT JOIN strength reduction. (check-in: 8a39167bd2 user: drh tags: trunk) | |
| 16:01 | Improvements to the LEFT JOIN strength reduction optimization. (check-in: 548082dfab user: drh tags: trunk) | |
| 15:33 | Ensure fts3/4 prefix indexes are flushed to disk before an 'optimize' command. Fix for [745f1abc]. (check-in: 4ed905b188 user: dan tags: trunk) | |
| 14:27 | Fix the fts3/4 integrity-check command so that it works with "ORDER=DESC" tables. Fix for [8a6fa2bb]. (check-in: 5863546df9 user: dan tags: trunk) | |
| 14:25 | Increase the version number to 3.31.0 for the next release cycle. (check-in: ffd4c30620 user: drh tags: trunk) | |
| 14:21 | Faster response to sqlite3_interrupt() in the OP_IntegrityCk and OP_Count opcodes. (check-in: bf875dc599 user: drh tags: trunk) | |
| 11:21 | Merge the 3.30.1 changes into reuse-schema. (Leaf check-in: eff7cd7f12 user: drh tags: reuse-schema-3.30) | |