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200 most recent check-ins using file src/test6.c version e8d839fbc5
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2024-04-02
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| 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) | |
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2023-11-29
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| 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) | |
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2023-10-19
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| 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) | |
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2023-09-15
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| 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) | |
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2023-02-26
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| 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) | |
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2023-02-16
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| 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) | |
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2023-02-15
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| 13:00 | Update the configure script so that it contains the correct version number. (check-in: a7cbf30808 user: drh tags: branch-3.26) | |
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2022-10-24
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| 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) | |
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2022-10-19
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| 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) | |
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2022-09-01
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| 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) | |
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2022-08-10
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| 17:03 | Merge the branch-3.28a fixes into branch-3.28. (check-in: ba6bf33147 user: drh tags: branch-3.28) | |
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2022-08-09
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| 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) | |
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2021-08-11
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| 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) | |
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2021-07-13
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| 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) | |
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2021-07-12
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| 15:00 | Fix a defect in the query-flattener optimization identified by ticket [8f157e8010b22af0]. This fix is associated with CVE-2020-15358. (Leaf check-in: bcd014c473 user: dan tags: branch-3.32a) | |
| 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) | |
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2021-02-11
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| 16:19 | In RBU, avoid passing VFS xShmLock calls through to the underlying VFS in cases where xShmMap calls may not be. This fixes a bad interaction with ZipVFS. (Leaf check-in: 0c3838d951 user: dan tags: reuse-schema-3.31) | |
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2020-11-20
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| 11:17 | Declare a variable "const" in order to avoid compiler warnings. (check-in: 4f5481bf29 user: dan tags: wal2) | |
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2020-11-19
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| 16:08 | Fix things so that sqlite3_database_file_object() works with wal2 filenames. (check-in: c2426ae8a8 user: dan tags: wal2) | |
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2020-10-22
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| 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) | |
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2020-10-02
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| 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) | |
| 13:48 | Additional corner-case fixes for the in-scan-vs-index or OP_SeekScan optimization. (check-in: ad5ab24ebd user: drh tags: trunk) | |
| 12:49 | Remove an incorrect assert() from the OP_SeekScan opcode. (check-in: c0400f8c0b user: drh tags: trunk) | |
| 12:42 | Fix a faulty assert() statement. Add new test cases. (check-in: 80ecdb3da4 user: drh tags: trunk) | |
| 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) | |
| 11:55 | 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: 091d719394 user: drh tags: trunk) | |
| 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) | |
| 02:02 | 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: c75c3a3b75 user: drh tags: trunk) | |
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2020-10-01
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| 17:24 | Add experimental "trigram" tokenizer to fts5. (check-in: c4e8ec7907 user: dan tags: trunk) | |
| 17:15 | Add the -trigram option to the fts5txt2db.tcl script. (Closed-Leaf check-in: a394dd2602 user: dan tags: fts5-trigram) | |
| 16:10 | Add tests for the trigram tokenizer. Fix minor issues. (check-in: 897ced99b4 user: dan tags: fts5-trigram) | |
| 15:46 | Fix the OP_SeekScan opcode so that its variable names do not cause problems for the test/vdbe-compress.tcl script. (check-in: 7a78274a07 user: drh tags: trunk) | |
| 14:38 | Remove a debugging printf() accidentally left in the previous check-in. (check-in: e9d1efa597 user: drh tags: trunk) | |
| 14:36 | The IN-early-out optimization does not work for virtual tables. Do not try to use it there. Fix for ticket [2d5a3163563d559f]. Test cases in TH3. (check-in: dbec6910d9 user: drh tags: trunk) | |
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2020-09-30
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| 20:35 | Add experimental unicode-aware trigram tokenizer to fts5. And support for LIKE and GLOB optimizations for fts5 tables that use said tokenizer. (check-in: 0d7810c1ae user: dan tags: fts5-trigram) | |
| 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) | |
| 18:06 | 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: 4a43430fd2 user: drh tags: trunk) | |
| 18:03 | For the OP_SeekScan opcode, adjust the number of steps run before giving up based on the estimated number of comparisons needed to perform a seek. (Closed-Leaf check-in: dc4172e6b8 user: drh tags: in-scan-vs-index) | |
| 17:32 | Back out the incorrect optimization of check-in [e51ecadcbdef5ce6] as ticket [5c4e7aa793943803] reports a case where the optimization does not work. (check-in: 7395e96b8c user: drh tags: trunk) | |
| 15:36 | In the query flattener when substituting expression Y in place of expression X, if X is marked has having come from an ON or USING clause of a LEFT JOIN, then be sure that all subexpressions of Y, not just the root node of Y, are similarly marked. Otherwise, if Y is an AND operator, it will be split up during WHERE clause analysis and the subexpressions will not get the special treatment needed by LEFT JOIN ON/USING clauses. Fix for ticket [66e4b0e271c47145]. (check-in: 69f9eb7343 user: drh tags: trunk) | |
| 09:17 | Better understanding of savepoint code (check-in: ce6d8d6215 user: shearer tags: trunk) | |
| 00:48 | Add an sqlite3FaultSim() call to btreeNext() to make it easier to simulate I/O errors in calls to sqlite3BtreeNext(), and in OP_SeekScan. (check-in: 29cca775d3 user: drh tags: in-scan-vs-index) | |
| 00:10 | In the OP_SeekScan opcode, changes to pOp must occur after the call to VdbeBranchTaken() so that the VdbeBranchTaken() attributes the branch to the correct opcode. (check-in: 61fbe7aa7c user: drh tags: in-scan-vs-index) | |
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2020-09-29
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| 23:52 | The OP_SeekScan opcode is a no-op if the cursor is not pointing to a valid row upon entry. (check-in: 4afc96b5fe user: drh tags: in-scan-vs-index) | |
| 20:22 | Coverage testing of the OP_SeekScan opcode. Fix a problem that comes up when OP_SeekScan reaches the end of the table. (check-in: 9e57e758a6 user: drh tags: in-scan-vs-index) | |
| 17:29 | Improved comments on the new OP_SeekScan opcode. (check-in: 6110fdd5bb user: drh tags: in-scan-vs-index) | |
| 16:05 | Improved performance by manually in-lining the sqlite3VdbeIdxKeyCompare() routine for the OP_IdxGT opcode and its kin. (check-in: 2206a2c848 user: drh tags: in-scan-vs-index) | |
| 15:32 | Typo fix to repair the early-out optimization. Also avoid unnecessary OP_SeekHit opcodes. (check-in: 8fd7d8dfcd user: drh tags: in-scan-vs-index) | |
| 01:48 | The OP_SeekScan opcode works, but using it requires disabling the IN-earlyout optimization because the OP_IfNoHope opcode might move the cursor. (check-in: f3c36b840c user: drh tags: in-scan-vs-index) | |
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2020-09-28
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| 19:51 | Revisiting the IN-scan optimization to try to fix it for the corner case where the statistics deceive the query planner into using a scan when an indexed lookup would be better. This check-in changes the code generation to do the IN-scan using a new OP_SeekScan opcode. That new opcode is designed to abandon the scan and fall back to a seek if it doesn't find a match quickly enough. For this work-in-progress check-in, OP_SeekScan is still a no-op and OP_SeekGE still ends up doing all the work. (check-in: d720b6981e user: drh tags: in-scan-vs-index) | |
| 15:49 | Small performance improvement and size reduction by reducing the size of the WhereTerm object. (check-in: 43f7ddad80 user: drh tags: trunk) | |
| 13:34 | Avoid the possibility of integer overflow on the --pagecache option to the CLI. See [forum:10a2892377|forum post 10a2892377] (check-in: d3d13df31a user: drh tags: trunk) | |
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2020-09-25
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| 17:17 | Clarify (check-in: 14dba0f3b5 user: shearer tags: btree-code-documentation) | |
| 16:54 | Distinguish between checkpoints (WAL-only, implementation specific) and savepoints (Btree internal implementation of COMMIT/ROLLBACK subtransactions) and SQL SAVEPOINT (identical name for SQL-level subtransactions) (check-in: ae686ab6a8 user: shearer tags: btree-code-documentation) | |
| 14:26 | Reset to trunk's func. Still learning Fossil. (check-in: a4840cf5c6 user: shearer tags: btree-code-documentation) | |
| 13:56 | More classification of functions. Fix incorrect comment that sqlite3BtreeCursorHasHint() is only used within asserts. (check-in: 78d8db7cb7 user: shearer tags: btree-code-documentation) | |
| 09:42 | Merge recent trunk changes into the btree-code-documentation branch (check-in: 3a576608e6 user: shearer tags: btree-code-documentation) | |
| 08:17 | Add reminder comment that, by definition, these functions won't be called from elsewhere in SQLite. Useful to remember for beginners who may suspect unusued code. (check-in: 6f5c1fde24 user: shearer tags: btree-code-documentation) | |
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2020-09-24
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| 11:41 | Added context to explain that the test coverage is about MC/DC in general, not just an SQLite-specifc test harness. (check-in: 770dbedddc user: shearer tags: btree-code-documentation) | |
| 06:37 | Group metadata definitions together (check-in: 5c306f4251 user: shearer tags: btree-code-documentation) | |
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2020-09-23
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| 17:31 | Figured out where/how sqlite3BtreeRowCountEst() is called (check-in: a46537153c user: shearer tags: btree-code-documentation) | |
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2020-09-21
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| 20:18 | Fix harmless compiler warning seen with MSVC. (check-in: 4591ee03d7 user: mistachkin tags: trunk) | |
| 14:53 | In fts5 integrity checks, do not compare the contents of the index against an external content table unless specifically requested. (check-in: 782163693f user: dan tags: trunk) | |
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2020-09-20
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| 13:33 | Remove a new assert() that the compiler finds is always true at compile-time, to avoid a compiler warning. (check-in: 8bbaee2385 user: drh tags: trunk) | |
| 12:10 | Attempt to silence harmless static analyzer warnings in Lemon and in the Lemon-generated parser. (check-in: de8ce22a46 user: drh tags: trunk) | |
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2020-09-17
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| 21:11 | Fix a typo in the documentation comment for sqlite3_preupdate_hook(). (check-in: 4542d194e2 user: dan tags: trunk) | |
| 17:01 | Fix a problem in sqlite-expert causing it to ignore equality constraints on the second or subsequent columns of a multi-column PRIMARY KEY. (check-in: c666c85a43 user: dan tags: trunk) | |
| 15:16 | Fix a problem in fts5 causing the in-memory hash table to be flushed more often than necessary. (check-in: 9a55601d07 user: dan tags: trunk) | |
| 15:04 | Order btree.h by logical function, add comments (check-in: ab53b31795 user: shearer tags: btree-code-documentation) | |
| 14:16 | Fix a "jump depends on unitialized value" valgrind/asan error in fts5. (check-in: 66f94d623c user: dan tags: trunk) | |
| 11:56 | Earlier detection of corruption in the rtreecheck() SQL function to prevent a (harmless) read of an uninitialized value. (check-in: e2074b2478 user: drh tags: trunk) | |
| 11:32 | Prevent use-after-free of the u.vtab.idxStr string following an OOM while generating the OP_VFilter opcode. (check-in: 751fe4edb2 user: drh tags: trunk) | |
| 00:46 | DISTINCT may not be ignored inside a UNION ALL common table expression. Fix for ticket [c51489c3b8f919c5] (check-in: 7d2b590d3a user: drh tags: trunk) | |
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2020-09-16
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| 19:48 | Fix a pair of assert()s in "PRAGMA foreign_key_check" that might have given a false-positive following an OOM. (check-in: 9ea3039b53 user: drh tags: trunk) | |
| 16:55 | Fix harmless compiler warnings in Lemon. (check-in: 6c94ba4b1c user: drh tags: trunk) | |
| 16:55 | Merge bugfixes made since version 3.33.0 into this branch. (Leaf check-in: 2e269dcdef user: dan tags: reuse-schema-3.33) | |
| 16:49 | Fix a buffer overread found by OSSFuzz that could occur if a WITHOUT ROWID table with many columns was NATURAL JOINed against itself. (Leaf check-in: 807643c596 user: dan tags: branch-3.33) | |
| 16:48 | Do not invoke usleep() for more than 999999 microseconds. (check-in: 1f0055d0a2 user: dan tags: branch-3.33) | |
| 16:45 | Fix a tsan error that could occur when using shared-cache mode. (check-in: 61981b9747 user: dan tags: branch-3.33) | |
| 16:44 | Fix another (harmless in practice) tsan error in shared-cache mode. (check-in: 553e20c3d7 user: dan tags: branch-3.33) | |
| 16:41 | Apply the same fix for ticket [9eda2697f5cc1aba] to text-to-integer conversions that was done for floating point conversions by check-in [1c76f1d8ec0937a2]. (check-in: 1b4801de2d user: dan tags: branch-3.33) | |
| 16:40 | Correctly handle expressions like "x IS (not) true/false" within the rhs of IN() expressions. Fix for [f3ff1472]. (check-in: 4236103379 user: dan tags: branch-3.33) | |
| 16:39 | Fix a crash that could occur in SQLITE_MAX_EXPR_DEPTH=0 builds when processing SQL containing syntax errors. (check-in: 6438db4570 user: dan tags: branch-3.33) | |
| 16:38 | Do not skip over TK_IF_NULL_ROW operators when bypassing TK_COLLATE operators. Fix to check-in [ac31edd3eeafcef4] which was itself a fix for ticket [45f4bf4eb4ffd788]. (check-in: 8504161154 user: dan tags: branch-3.33) | |
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2020-09-15
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| 20:48 | Fix a buffer overread found by OSSFuzz that could occur if a WITHOUT ROWID table with many columns was NATURAL JOINed against itself. (check-in: 3d35fa0be8 user: dan tags: trunk) | |
| 12:29 | Do not invoke usleep() for more than 999999 microseconds. (check-in: 1f5ed852f2 user: drh tags: trunk) | |
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2020-09-11
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| 15:01 | Catch fts5 index corruption caused by issuing 'delete' commands with incorrect data earlier in some cases. Also fix a couple of test script problems. (check-in: b79f19edfd user: dan tags: trunk) | |
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2020-09-10
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| 15:09 | Try again to fix the typo in the sqlite3_txn_state() documentation. (check-in: 6d1ab0403c user: drh tags: trunk) | |
| 14:54 | Fix typo in the documentation for the new sqlite3_txn_state() interface. (check-in: 23f7d01758 user: drh tags: trunk) | |
| 12:41 | If an amalgamation is created using SQLITE_ENABLE_UPDATE_DELETE_LIMIT, ensure that it can still be compiled without that option by setting the SQLITE_UDL_CAPABLE_PARSER flag in the preamble. (check-in: 5b905d7d77 user: drh tags: trunk) | |
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2020-09-07
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| 11:23 | Merge latest trunk changes into this branch. (check-in: ae1a778dbb user: dan tags: reuse-schema) | |
| 11:14 | Fix another (harmless in practice) tsan error in shared-cache mode. (check-in: 5a74fa3f0a user: dan tags: trunk) | |
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2020-09-06
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| 17:40 | Remove an artifical limitation on the length of columns in the "box" output mode of the command-line shell. (check-in: 783fa887c9 user: drh tags: trunk) | |
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2020-09-05
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| 06:21 | Fix a bug in Lemon that might cause it to crash if there is a multi-terminal token with a space following the "|" separator. This does not affect SQLite. (check-in: 430c5d1da5 user: drh tags: trunk) | |
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2020-09-04
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| 19:12 | Merge tsan error fix from trunk into this branch. (check-in: 93cc60b342 user: dan tags: reuse-schema) | |
| 19:10 | Fix a tsan error that could occur when using shared-cache mode. (check-in: de80bc8730 user: dan tags: trunk) | |
| 17:40 | Update this branch with latest changes from trunk. (check-in: ca8deb44c7 user: dan tags: reuse-schema) | |
| 17:30 | Ensure that the busy-handler count is reset at the end of each sqlite3_file_control() and sqlite3_prepare() (and _v2() and _v3()). (check-in: 5dd0594061 user: dan tags: trunk) | |
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2020-09-02
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| 16:14 | Add tests for virtual table shmlock. (Leaf check-in: 1c6a844273 user: dan tags: shmlock-vtab) | |
| 15:26 | Fix reporting on locks from external processes. Various other fixes. (check-in: 459de23e86 user: dan tags: shmlock-vtab) | |
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2020-09-01
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| 20:56 | Add file-controls and a vtab frontend for querying the unix VFS for the currently held shm-locks. Still some issues. (check-in: ef10e1b386 user: dan tags: shmlock-vtab) | |
| 19:02 | Fix harmless compiler warning. (check-in: a711e8cd2c user: mistachkin tags: trunk) | |
| 12:26 | In the Lemon output, add a prefix comment that explains that the output file is automatically generated and shows the name of the source file. (check-in: d34caf3bb6 user: drh tags: trunk) | |
| 11:20 | Lemon updates: (1) include the #defines for all tokens in the generated C file, so that the C-file can be stand-alone. (2) If the grammar begins with a %include {...} directive on line one, make that directive the header for the generated C file. (3) Enhance the lemon.html documentation. (check-in: 84d54eb357 user: drh tags: trunk) | |
| 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) | |
| 01:52 | 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: 35505c68c1 user: drh tags: trunk) | |
| 00:26 | Fix a harmless compiler warning. (check-in: 3ca0b7d54d user: drh tags: trunk) | |
| 00:09 | Minor changes - fix a compiler warning and add an assert(). (Closed-Leaf check-in: 07222dce10 user: drh tags: in-early-out-fail) | |
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2020-08-31
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| 20:37 | Update this branch with the "PRAGMA noop_update" fix from begin-concurrent-report. (Leaf check-in: 1d98472277 user: dan tags: begin-concurrent-unixshmlock-opt) | |
| 20:29 | Update this branch with the "PRAGMA noop_update" fix from begin-concurrent-pnu. (check-in: 3c0423f0a8 user: dan tags: begin-concurrent-report) | |
| 20:27 | Restore the "PRAGMA noop_update" feature that was broken by [2b3241cf67c8eea7]. (check-in: 5fa4cbcb78 user: dan tags: begin-concurrent-pnu) | |
| 19:58 | Merge the SEEK_COUNT instrumentation enhancement from trunk. (check-in: 689ede9564 user: drh tags: in-early-out-fail) | |
| 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) | |
| 18:49 | New test-control that returns the number of calls to sqlite3BtreeMovetoUnpacked() on the main database and then resets the counter. This only works for SQLITE_DEBUG builds. (check-in: dca5b91926 user: drh tags: trunk) | |
| 16:31 | 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 2020-08-31:</b> This experiment did not work out. A better approach is now on trunk. (check-in: e9d983c683 user: drh tags: in-early-out-fail) | |
| 12:29 | Fix the documentation for the OP_IdxGT family of opcodes to show that the P5 operand is not used. (check-in: 62f7d2a612 user: drh tags: trunk) | |
|
2020-08-29
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| 19:00 | Fix a sanitizer warning in zipfile.c. (check-in: ded1a75b3c user: dan tags: trunk) | |
| 15:36 | Improve performance of wal-mode locking on unix in cases where there are hundreds of connections to a single database within the same process. (check-in: 30214727f7 user: dan tags: begin-concurrent-unixshmlock-opt) | |
| 15:15 | Improve performance of wal-mode locking on unix in cases where there are hundreds of connections to a single database within the same process. (check-in: a1c19eea8f user: dan tags: trunk) | |
|
2020-08-28
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| 20:01 | Fix handling of an xShmLock(SHARED, UNLOCK) call when the caller does not hold any lock on the specified slot, but another connection in the same process holds an EXCLUSIVE. (Closed-Leaf check-in: 3eb365027b user: dan tags: unixshmlock-opt) | |
| 19:27 | Modify the unixShmLock() function to avoid iterating through the (possibly large) set of connections to the same database file. (check-in: e0faddf0df user: dan tags: unixshmlock-opt) | |
| 18:47 | Add the miscellaneous 'series' extension to the shell. (check-in: fc0856dccf user: mistachkin tags: trunk) | |
| 13:10 | Update Lemon documentation. Patches from sgbeal. (check-in: f5dc83442b user: drh tags: trunk) | |
| 12:58 | Fix a couple of unreachable branches. (check-in: f2d26f2b11 user: drh tags: trunk) | |
| 11:19 | Add fts5 test to confirm that for a table with columns a, b, c and d, "{a b}" and "-{c d}" are handled similarly. (check-in: 1a04920998 user: dan tags: trunk) | |
|
2020-08-27
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| 20:55 | Remove a (harmless) redundant variable from the CLI implementation. (check-in: 3f7bbb840d user: drh tags: trunk) | |
| 18:36 | Include the original text of the CHECK constraint in the error message for anonymous CHECK constraints. (check-in: 5ce34a955b user: drh tags: trunk) | |
| 16:28 | Apply the same fix for ticket [9eda2697f5cc1aba] to text-to-integer conversions that was done for floating point conversions by check-in [1c76f1d8ec0937a2]. (check-in: aafb7a2104 user: drh tags: trunk) | |
| 14:53 | Do not attempt to run test script analyze3.test as part of the "prepare" permutation. (check-in: f7f13cb1bc user: dan tags: trunk) | |
|
2020-08-26
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| 19:07 | Enhance the ".databases" command in the CLI so that it shows the result of sqlite3_db_readonly() and sqlite3_txn_state() for each database file. (check-in: 0ffd16d23d user: drh tags: trunk) | |
| 10:50 | If the argument to the ".read" command in the CLI begins with "|" then run the remainder of the argument as a command and read input from the output of that command. (check-in: 6c716f4b55 user: drh tags: trunk) | |
|
2020-08-25
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| 19:09 | Add support for the sqlite3_txn_state() interface. (check-in: ad195e3dd8 user: drh tags: trunk) | |
|
2020-08-24
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| 23:44 | Reduce the N in the logN term for the sorting cost associated with computing DISTINCT by B-Tree by half, under the assumption that the DISTINCT will eliminate about half the rows of output. This is really a wild guess. But we do not have any better way of estimating what the row-count reduction due to DISTINCT will actually be. (check-in: 8787417ec1 user: drh tags: trunk) | |
| 10:52 | Correctly handle expressions like "x IS (not) true/false" within the rhs of IN() expressions. Fix for [f3ff1472]. (check-in: 493a25949b user: dan tags: trunk) | |
|
2020-08-20
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| 16:25 | Fix a crash that could occur in SQLITE_MAX_EXPR_DEPTH=0 builds when processing SQL containing syntax errors. (check-in: 5f58dd3a19 user: dan tags: trunk) | |
| 11:03 | Avoid a buffer overrun in test code that could occur if certain test functions were passed a hex-string containing an odd number of digits. (check-in: 3c5e63c22f user: dan tags: trunk) | |
|
2020-08-19
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| 23:51 | Try to make SQLite easier to compiler for Mac Catalyst. See [https://sqlite.org/forum/forumpost/803387a1c5|forum post 803387a1c5]. (check-in: e1595a20d7 user: drh tags: trunk) | |
| 23:32 | Do not skip over TK_IF_NULL_ROW operators when bypassing TK_COLLATE operators. Fix to check-in [ac31edd3eeafcef4] which was itself a fix for ticket [45f4bf4eb4ffd788]. (check-in: 871f2ddcfb user: drh tags: trunk) | |
| 15:24 | Update releasetest_data.tcl so that the "Fast-One" configuration runs bigmmap.test as part of release testing. (check-in: a0aa35aaa5 user: dan tags: trunk) | |
| 15:21 | Fix a problem in test file bigmmap.test. (check-in: d8e4738216 user: dan tags: trunk) | |
|
2020-08-17
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| 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) | |
| 09:11 | Fix the -quote option on the CLI to set the correct column separator. (check-in: c778f8295c user: drh tags: trunk) | |
|
2020-08-16
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| 00:30 | Optimization to sqlite3BeginWriteOperation(). (check-in: 2173d4c6e3 user: drh tags: trunk) | |
|
2020-08-15
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| 23:48 | Optimization of the sqlite3SrcListDelete() routine. (check-in: 1b4acd1ac4 user: drh tags: trunk) | |
| 22:23 | Remove more unnecessary sqlite3GetVdbe() calls, replacing them with assert()s. (check-in: b7dc932197 user: drh tags: trunk) | |
| 21:55 | Avoid unnecessary calls to the sqlite3GetVdbe() routine. Add assert() statements to prove each call is unnecessary. (check-in: 86d3790caf user: drh tags: trunk) | |
| 19:58 | Omit the unnecessary not-NULL check on the upper bound of a forward index range scan. The subsequent OP_IdxGT will always catch the NULL. Similarly, omit the not-NULL check on the lower bound of a reverse index range scan, as the SeekLE opcode will disallow the NULL. (check-in: e51ecadcbd user: drh tags: trunk) | |
|
2020-08-14
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| 21:51 | 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: 7fee0b1075 user: drh tags: trunk) | |
| 21:37 | Update the version number to 3.34.0 for the next development cycle. (check-in: 70f34f3df5 user: drh tags: trunk) | |
| 21:32 | Optimizations to the logic that converts main table accesses into equivalent index accesses. Code is now slightly smaller and faster than trunk. (Closed-Leaf check-in: 611b640442 user: drh tags: delete-bytecode-optimization) | |
| 20:04 | For UPDATE and DELETE, use OP_DeferredSeek always. If the seek must later be resolved, add the OP_FinishSeek opcode after all WHERE clause terms have been processed. This obviates the need for the WHERE_SEEK_TABLE and WHERE_SEEK_UNIQ_TABLE flags to sqlite3WhereBegin() and the ensuing complication, and it allows the covering index optimization to be used further into WHERE clause processing. (check-in: a495f60d31 user: drh tags: delete-bytecode-optimization) | |
| 17:39 | Experimental change to try to get some DELETE operations to access values using the index rather than the main table, so as to avoid unnecessary main table seeks. (check-in: 2f7cb6ab39 user: drh tags: delete-bytecode-optimization) | |
| 16:14 | Fix an inconsequential memory leak in sqldiff. Update the "Sanitize" case in wapptest.tcl to use -fsanitize=address,undefined, and to run more tests. (check-in: 613fb5c252 user: dan tags: trunk) | |
| 13:55 | Merge the 3.33.0 release into the reuse-schema branch. (check-in: e456d43708 user: drh tags: reuse-schema) | |
| 13:23 | Version 3.33.0 (check-in: fca8dc8b57 user: drh tags: trunk, release, version-3.33.0) | |
|
2020-08-13
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| 17:27 | Fix "make test" handling of environment variable QUICKTEST_OMIT so that it can be used to exclude test files in other than the main test directory. (check-in: b050976079 user: dan tags: trunk) | |
|
2020-08-12
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| 16:19 | Improvement on the previous fix. (check-in: f6cffa2d50 user: drh tags: trunk) | |
| 15:39 | Fix an assertion() fault in ALTER TABLE found by OSSFuzz. Test case in TH3. (check-in: 41de742c57 user: drh tags: trunk) | |
|
2020-08-11
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| 21:53 | Fix harmless USAN warnings from gcc9. (check-in: 72c4c69fea user: drh tags: trunk) | |
| 18:17 | New test cases for the use of the ieee754 and decimal extensions in the CLI. (check-in: bc1590f32f user: drh tags: trunk) | |
| 18:00 | Modify a test for corruption within the wal checkpoint code to account for the pending-byte page. And for the fact that test configurations might move the pending-byte page. (check-in: 7dfb74c37e user: dan tags: trunk) | |
| 17:20 | Minor comment fixes. No changes to code. (check-in: 533aeb9008 user: drh tags: trunk) | |
| 16:46 | Remove an unused #define from sqliteInt.h. (check-in: d5b254f94c user: drh tags: trunk) | |
| 14:55 | Merge all changes since the 3.32.0 release into the reuse-schema branch. (check-in: b1a77b7ead user: drh tags: reuse-schema) | |
| 14:06 | Update this branch with latest from begin-concurrent-pnu. (check-in: 3ee73880ed user: dan tags: begin-concurrent-report) | |
| 14:01 | Do not run tests in concreport.test for non SQLITE_ENABLE_PREUPDATE_HOOK builds. (check-in: e39e7a6fc7 user: dan tags: begin-concurrent-report) | |
| 13:22 | Merge all the latest changes into the begin-concurrent-pnu-wal2 branch. (check-in: ebefcb8607 user: drh tags: begin-concurrent-pnu-wal2) | |
| 11:34 | Merge latest trunk changes into this branch. (check-in: 91262e6657 user: dan tags: wal2) | |
|
2020-08-10
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| 21:30 | Merge recent trunk fixes into the begin-concurrent-pnu branch. (check-in: 2ae78c993e user: drh tags: begin-concurrent-pnu) | |
| 21:16 | Merge recent trunk enhancements into begin-concurrent. (check-in: ed4c742c4e user: drh tags: begin-concurrent) | |
| 21:01 | Simplify #ifdefs associated with Parse.eParseMode. Fix an #ifdef error associated with SQLITE_OMIT_AUTOVACUUM. (check-in: 5bbd4bddd3 user: drh tags: trunk) | |
| 19:35 | Fix a problem causing test failures in corruptL.test for some permutations. (check-in: 680bdc6524 user: dan tags: trunk) | |
| 19:30 | Fix a problem building fts3 separately from the amalgamation. (check-in: 2a167cfbb2 user: dan tags: trunk) | |
| 14:34 | Fix a shell tool build error caused by some combinations of options. (check-in: 33cd5341ac user: dan tags: trunk) | |
| 14:18 | Fix harmless compiler warnings that surface in newer versions of GCC. (check-in: 9d670a3183 user: drh tags: trunk) | |
| 11:21 | Fix another test script problem in walvfs.test. (check-in: 1b89d3931e user: dan tags: trunk) | |
| 10:43 | Fix minor test script problems. (check-in: 5d54cd44d0 user: dan tags: trunk) | |
|
2020-08-09
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| 17:58 | Fix a harmless compiler warning. (check-in: 6f91769fdb user: drh tags: trunk) | |
|
2020-08-08
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| 20:15 | Fix the check-in at [41474548ef3f7454] so that it computes the pointer in time for error checking at the end of the routine in the case of a non-OOM error. (check-in: 13d2fed760 user: drh tags: trunk) | |
| 20:11 | Fix test script busy2.test so that it works with the inmemory-journal permutation. (check-in: b412d1d175 user: dan tags: trunk) | |
| 20:03 | Changes to busy2.test, corruptL.test and fkey5.test so that new test cases pass with all test permutations. (check-in: d62d1711e2 user: dan tags: trunk) | |
| 19:52 | Fix a test script problem causing an error for SQLITE_ENABLE_OVERSIZE_CELL_CHECK builds in corruptL.test. (check-in: a85520e007 user: dan tags: trunk) | |
| 17:55 | Move a pointer computation until after OOM checks to avoid a nuisance USAN warning. (check-in: 41474548ef user: drh tags: trunk) | |
| 17:02 | Change the name of sqlite3SelectTrace to sqlite3_unsupported_selecttrace. (check-in: 5ecd03a27b user: dan tags: trunk) | |
| 15:40 | Update requirement marks due to wording improvements in the documentation. (check-in: bf875a1c7f user: drh tags: trunk) | |
| 00:44 | Reorder declarations in the decimal extension for C89. (check-in: eface2da2c user: drh tags: trunk) | |
|
2020-08-07
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| 19:52 | Do the oversize-WAL corruption test before the size hint is issued. (check-in: fdc5fb902d user: drh tags: trunk) | |
| 18:52 | Fix a file-descriptor leak in test script corruptL.test. (check-in: ec2c340c39 user: dan tags: trunk) | |
| 16:28 | Return an SQLITE_CORRUPT error if the final expected size of the database when checkpointing is not reasonable - where reasonable is defined (basically) as the sum of the sizes of the database and wal files. (check-in: e2799563c8 user: dan tags: trunk) | |
| 14:47 | Add the --checkpoint option to speedtest1. (check-in: 4cffa9bb44 user: drh tags: trunk) | |
| 14:22 | Fix compilation issues with MSVC. (check-in: c5a7e6d2c2 user: drh tags: trunk) | |
|
2020-08-06
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| 16:45 | Fix the columnar output modes in the CLI so that they work with parameters. See [https://sqlite.org/forum/forumpost/17ba6aac24] for details of the problem fixed. (check-in: d573aa9b12 user: drh tags: trunk) | |