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200 most recent check-ins using file tool/vdbe_profile.tcl version 246d0da094
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2024-09-18
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| 18:04 | Improvements to the scope of valueFromFunction(). (Leaf check-in: b021399a6e user: drh tags: branch-3.28) | |
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2024-06-07
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| 00:20 | Allow the query planner access to the argument of LIMIT even if that argument is a bound parameter. (check-in: 148d505ca0 user: drh tags: branch-3.28) | |
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2024-06-06
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| 16:06 | Better optimize queries that use parameters in the LIMIT clause. (Closed-Leaf check-in: b44f267671 user: drh tags: branch-3.28-var-in-limit) | |
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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. (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 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 [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 [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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2023-01-25
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| 17:24 | Change the instrumentation messages on this branch so that they contain "v=7" instead of "v=6". (Leaf check-in: acea12d90f user: dan tags: schema-version-instr) | |
| 17:09 | Experimental patch to put page buffers on an internal per-connection list for reuse instead of free()ing them when the page-cache is reset. (check-in: 1e4cfd2f30 user: dan tags: schema-version-instr) | |
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2023-01-19
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| 21:05 | Add test logging around the pcache1FreePage() loop in pcache1TruncateUnsafe(). (check-in: a057f9cb2c user: dan tags: schema-version-instr) | |
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2023-01-16
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| 20:33 | Another version of the debug-only logging on this branch. (check-in: 906caf8911 user: dan tags: schema-version-instr) | |
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2023-01-14
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| 19:36 | Add OOM check, per tip at forum post 933479b2d5 (Leaf check-in: c66c7734fe user: drh tags: branch-3.40) | |
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2023-01-13
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| 19:32 | In expression nodes of type REGISTER with sub-type COLUMN, ensure that the iColumn field is set correctly, as otherwise the "IS NULL" operator might be incorrectly optimized. Fix for the problem described by forum post d010a26798915b53. (check-in: 76b440c588 user: drh tags: branch-3.40) | |
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2023-01-06
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| 19:03 | Fix the threshold for logging "PRAGMA schema_version" slowness. (check-in: ca3854cb6f user: dan tags: schema-version-instr) | |
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2023-01-05
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| 19:48 | One more iteration of "PRAGMA schema_version" instrumentation. (check-in: 0d9081068e user: dan tags: schema-version-instr) | |
| 13:55 | Remove the unused sqlite3IsMemdb() routine, to avoid a harmless compiler warning. (check-in: 4f512a39af user: drh tags: branch-3.40) | |
| 13:41 | Fix a problem with applying integer affinity to a MEM_IntReal value. Forum post d270125fae. (check-in: d28d9398a5 user: drh tags: branch-3.40) | |
| 01:32 | Increase the version number to 3.40.2. (check-in: 43375ef8a7 user: drh tags: branch-3.40) | |
| 01:29 | In the zipfile extension (which is not part of the SQLite amalgamation, but which is included in the CLI by default) ensure that fopen() is not invoked using a NULL filename. Fix for the issue reported by forum post d1c96a9032e564f8. (check-in: e4de577757 user: drh tags: branch-3.40) | |
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2022-12-28
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| 14:55 | Merge the 3.40.1 changes into the reuse-schema branch. (Leaf check-in: 126c68bd15 user: drh tags: reuse-schema-3.40) | |
| 14:03 | Version 3.40.1 (check-in: df5c253c0b user: drh tags: release, version-3.40.1, branch-3.40) | |
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2022-12-27
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| 14:14 | Fix a broken assert() in fts5. (check-in: ff1d456161 user: dan tags: branch-3.40) | |
| 14:12 | Fix a faulty assert() in fts5. (check-in: 4acff807c6 user: dan tags: branch-3.40) | |
| 14:11 | Fix an assert() in fts5. Simplify memdb xLock/xUnlock some. (check-in: 43079c5246 user: dan tags: branch-3.40) | |
| 14:06 | Fix a missing 0 at the end of an integer literal in the MEMSYS5 fix. (check-in: e3bc10e8a8 user: drh tags: branch-3.40) | |
| 11:53 | Fix minor problems in test scripts where.test and recover1.test. (check-in: 64588bd5da user: dan tags: branch-3.40) | |
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2022-12-26
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| 17:09 | Fix an unsafe use of sqlite3_mprintf() in sqlite3_overload_function() identified by forum post: https://sqlite.org/forum/forumpost/95b338860d. (check-in: a315222619 user: drh tags: branch-3.40) | |
| 17:02 | Prevent the sessions rebaser from generating changesets containing UPDATE records for which non-PK fields are present in the old.* but not the new.* record. Also update the changeset iterator to work around such changesets. (check-in: 629dbe2543 user: drh tags: branch-3.40) | |
| 16:54 | In the unix backend, when implementing the defenses against small file descriptors, delete a file just created if it was opened with O_EXCL|O_CREAT so that it can be created again the next time through the loop. Fix for the problem described by forum post 699af709ab3a8ccf. (check-in: 174acf3284 user: drh tags: branch-3.40) | |
| 16:45 | Fix an over-zealous assert() reported by Yong Heng. (check-in: 1e9dbb5a1b user: drh tags: branch-3.40) | |
| 16:24 | Ensure the RETURNING clause is honoured when a row of a temp table is updated by an ON CONFLICT clause. (check-in: ac9568cf87 user: drh tags: branch-3.40) | |
| 16:12 | Add the SQLITE_FCNTL_RESET_CACHE verb. Use it to ensure that the page cache is purged before and after a the recovery extension is run. (check-in: 71dd920f92 user: drh tags: branch-3.40) | |
| 16:03 | Fix corner cases in UTF8 handling in the REGEXP extension. Forum post 3ffe058b04. (check-in: 93e68b3983 user: drh tags: branch-3.40) | |
| 15:55 | Fix a off-by-one error in code generation that comes up when doing a DISTINCT query against a virtual table with an OR term in the WHERE clause and where the ORDER BY clause has 64 or more references to the result set. Forum post dfe8084751. The error is harmless in production builds, but might cause an assertion fault in a debugging build. (check-in: cbcd7d9be5 user: drh tags: branch-3.40) | |
| 15:44 | Fix safe mode authorizer callback to reject disallowed UDFs. Reported at Forum post 07beac8056151b2f. (check-in: 70964b8a1c user: drh tags: branch-3.40) | |
| 15:21 | Fix an infinite loop in the MEMSYS5 auxiliary memory allocator that occurs for memory allocations between 500MiB and 1GiB in size. Error introduced by check-in [949133231f8f751a]. The problem only affects builds that include the SQLITE_ENABLE_MEMSYS5 compile-time option. (check-in: c10d40ca68 user: drh tags: branch-3.40) | |
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2022-12-23
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| 15:05 | Another iteration of "PRAGMA schema_version" instrumentation. (check-in: d5a8d6cf05 user: dan tags: schema-version-instr) | |
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2022-12-22
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| 15:04 | Fix an error in the previous commit causing timings to be logged for every "PRAGMA schema_version" command, not just those that are slower than 2 seconds. (check-in: 1e8220c1b4 user: dan tags: schema-version-instr) | |
| 14:29 | Different version of "PRAGMA schema_version" instrumentation. (check-in: b9efbc538b user: dan tags: schema-version-instr) | |
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2022-12-19
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| 18:42 | Hack for special gettimeofday() instrumentation of "PRAGMA schema_version". (check-in: 44dd01e315 user: dan tags: schema-version-instr) | |
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2022-12-18
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| 10:27 | WIP, pre-sync-to-trunk check-in to capture extensive changes to shell source. (WASM and usual shell tweaks) (check-in: 3db119c8d7 user: larrybr tags: cli_extension) | |
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2022-12-06
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| 18:48 | For CLI .sha3sum, emit warning to stderr for any invalidly encoded text fields. (check-in: 8e833ecc81 user: larrybr tags: sha3sum_text_validation) | |
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2022-12-05
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| 18:19 | Add loops and rows counters to "USE TEMP B-TREE FOR ORDER BY" records. Also fix the sqliteHwtime() function so that it returns a 64-bit value. (check-in: 41a0e05e8c user: dan tags: scanstatus_v2) | |
| 14:23 | Fix a problem in the memdb vfs xLock() function allowing clients to upgrade to EXCLUSIVE locks when other connections are holding SHARED. (check-in: d18cce37b5 user: drh tags: branch-3.40) | |
| 14:20 | Regenerate the configure script so that it includes the correct patch number. (check-in: e2ae2ea195 user: drh tags: branch-3.40) | |
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2022-12-04
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| 23:20 | Fix safe mode authorizer callback to reject disallowed UDFs. Reported at Forum post 07beac8056151b2f. (check-in: cefc032473 user: larrybr tags: trunk) | |
| 22:13 | Fix safe mode authorizer callback to reject disallowed UDFs. Tests to follow. UPDATE: checked into the wrong branch. (Closed-Leaf check-in: 4d934f0063 user: larrybr tags: wrong branch.) | |
| 08:16 | Export sqlite3_result_zeroblob/zeroblob64() to wasm. (check-in: a60e56627f user: stephan tags: trunk) | |
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2022-12-03
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| 21:24 | Enhance SQLITE_SCANSTAT_NCYCLE so that it reports on virtual tables. (check-in: 622d8eb372 user: dan tags: scanstatus_v2) | |
| 18:16 | Add CYCLES scanstat measurement to "USE TEMP B-TREE FOR ORDER BY" lines. (check-in: 365011ae8b user: dan tags: scanstatus_v2) | |
| 17:23 | Add a test case to show that ticket [e8b674241947eb3b] has been fixed. (check-in: e20de6d450 user: drh tags: qp-tuning) | |
| 17:19 | Make conglomerateur help with extension packaging. Otherwise a WIP check-in. (check-in: c4214d8d3c user: larrybr tags: extension_opts) | |
| 17:09 | Further improvements to the estimated cost of sorting. Take into account the number of columns to be sorted. (check-in: f3290cf83b user: drh tags: qp-tuning) | |
| 16:09 | Cause CLI .sha3sum to warn of text fields that do not survive CAST(CAST(t as BLOB) AS TEXT) due to invalid UTF encoding. (check-in: 123f2a0785 user: larrybr tags: sha3sum_text_validation) | |
| 15:41 | Correct a memory leak in tester1.js. (check-in: e42b052dd7 user: stephan tags: trunk) | |
| 14:58 | sqlite3.wasm.allocFromTypedArray() now optionally accepts an ArrayBuffer as its argument. (check-in: 75a1a796f8 user: stephan tags: trunk) | |
| 13:10 | Rename wasm.xWrap.resultAdapter() X:free entries to X:dealloc for consistency with wasm.dealloc(). Add an undocumented feature to replace wasm.alloc/dealloc/realloc() with the C-standard allocators (after an allocator misuse led down a several-hour rabbit hole trying to discover a mis-free() violation). Related test updates. (check-in: d9807656f8 user: stephan tags: trunk) | |
| 13:05 | Doc typo fix for SQLITE_MAX_ALLOCATION_SIZE in malloc.c. No code changes. (check-in: ed1ed21221 user: stephan tags: trunk) | |
| 11:51 | Move kvvfs xRead()/xWrite() buffer from function-local stack memory to heap memory to accommodate changes in emsdk 3.1.27. (check-in: f1da32410c user: stephan tags: trunk) | |
| 11:16 | JavaScript: add sqlite3.wasm.realloc(), sqlite3.capi.SQLITE_MAX_ALLOCATION_SIZE, and related tests. (check-in: eeb84ba5de user: stephan tags: trunk) | |
| 03:06 | wasm build: rename the path to the wasm docs checkout, for clarity and consistency. (check-in: b820db3236 user: stephan tags: trunk) | |
| 02:42 | wasm snapshot and doc-related build automation tweaks. (check-in: 13eb1abd06 user: stephan tags: trunk) | |
| 01:59 | Rework the oo1.DB's distinct-per-VFS post-open() step to accept either a batch of SQL or a callback function. Increase OPFS's busy timeout to 10s. (check-in: 9feefe253a user: stephan tags: trunk) | |
| 00:52 | Tuning the query planner by adjusting the weights that predict the relative performance of sorting and index lookup. (check-in: 9f2806da4d user: drh tags: qp-tuning) | |
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2022-12-02
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| 20:32 | Enhance the sqlite3_stmt_scanstatus() API and add sqlite3_stmt_scanstatus_v2(). For creation of easier to read query performance reports. (check-in: 5580083364 user: dan tags: scanstatus_v2) | |
| 18:56 | Minor internal tweaks to the OPFS VFS. Resolve a missing result code which lead to a null deref in xFileSize(). (check-in: 57dd593ef0 user: stephan tags: trunk) | |
| 18:06 | OPFS VFS: translate createSyncAccessHandle() exceptions which appear to be locking violations to SQLITE_BUSY. This seems to improve concurrency considerably even with a reduced retry count of 5 (was 6). (check-in: 0d36021d10 user: stephan tags: trunk) | |
| 17:52 | For the sqlite3_bind and sqlite3_result interfaces for UTF16 strings, round the number of bytes down to the next even number, to avoid creating a UTF16 string that is an odd number of bytes. Forum post 411199488d065f83. (check-in: b57e3c3db0 user: drh tags: trunk) | |
| 15:31 | Use sqlite3_result_int64() instead of sqlite3_result_int() when returning potentially large values from the DBSTAT virtual table, to avoid integer overflows in the result. Forum post ada2ab044f. (check-in: 5652154a8c user: drh tags: trunk) | |
| 11:35 | Minor touchups to the JS test index page and test server push rules. (check-in: 0881f3e923 user: stephan tags: trunk) | |
| 10:43 | wasm builds: explicitly set a default stack size because emsdk 3.1.27 reduced it from 4MB to only 64kb, leading to memory corruption when kvvfs is used (it requires at least twice that for I/O). (check-in: 758112460f user: stephan tags: trunk) | |
| 09:23 | wasm: after building snapshot zip file, emit instructions for pushing it to the test server. (check-in: 9615c77919 user: stephan tags: trunk) | |
| 08:51 | Correct the problem which triggered the rollback in [7eec635562f6]: an incorrect default db page size (not a multiple of 512 bytes). (check-in: e06e490c24 user: stephan tags: trunk) | |
| 08:38 | Roll back the SQLITE_DEFAULT_PAGE_SIZE part of [c260895faacb34] because kvvfs does not work at all with a page size of 8kb. (check-in: 7eec635562 user: stephan tags: trunk) | |
| 08:29 | sqlite3-wasm.c: code legibility and coding style tweaks. Increase SQLITE_DEFAULT_PAGE_SIZE from 4k to 8k, as that improves OPFS speedtest1 performance by roughly 12%. (check-in: c260895faa user: stephan tags: trunk) | |
| 07:14 | Expand JS tests for db export/import and document reason it cannot currently work with kvvfs. Fix a minor JS build dependencies bug. Update page title with PASS/FAIL prefix for tester1.js to improve overview when launching multiple test tabs. Add ability of tester1 should-run-test predicates to report why a given test is disabled. (check-in: 75f610d3a4 user: stephan tags: trunk) | |
| 03:37 | Remove extraneous/unused sqlite3.oo1.version object. Add httpd makefile target. (check-in: 8e4d30ac03 user: stephan tags: trunk) | |
| 03:35 | Experimental branch for more flexible selection of extensions and localization of details of incorporation by host. A WIP for now. (check-in: 98be19ba83 user: larrybr tags: extension_opts) | |
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2022-12-01
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| 15:22 | sqlite3_js_create_file() now accepts an ArrayBuffer data source. Add test for OPFS-based export/re-import. The (sqlite3*) argument converter now optionally accepts sqlite3.oo1.DB instances. (check-in: 14a84b67fb user: stephan tags: trunk) | |
| 04:45 | Reformulate and simplify some JS tests related to the previous checkin. (check-in: 9ea2d3dcf7 user: stephan tags: trunk) | |
| 03:55 | Expand "sqlite3_vfs*" JS-to-WASM function argument conversions to accept VFS names (JS strings) and capi.sqlite3_vfs instances. Implement sqlite3_js_vfs_create_file() to facilitate creation of file-upload features which store the file in VFS-specific storage (where possible, e.g. "unix" and "opfs" VFSes). Correct an argument type check in the SQLite3Error and WasmAllocError constructors. (check-in: e1009b16d3 user: stephan tags: trunk) | |
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2022-11-30
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| 21:18 | Add a testcase() macro to verify that the case of a NOT NULL error message hitting the string length limit. (check-in: 91f50964c1 user: drh tags: trunk) | |
| 20:22 | Fix an over-zealous assert() reported by Yong Heng. (check-in: 6ee61f8ced user: drh tags: trunk) | |
| 19:11 | Attempt to rationalize the bits associated with ".wheretrace". Provide a decoder key in sqliteInt.h for what each bit is intended to do. (check-in: 8ec361695a user: drh tags: trunk) | |
| 18:21 | Rename some JS files from X.js to X.c-pp.js to keep the maintainer, and downstream build customizers, aware that those files contain constructs specific to the c-pp preprocessor and will not run as-is in JS. (check-in: 2eade7c7b1 user: stephan tags: trunk) | |
| 13:44 | Always use nanosleep() (instead of usleep() or sleep) if the _POSIX_C_SOURCE macro says it should be available. See Fossil Forum post ab2e2593ae307946 for driver behind this enhancement. (check-in: 6620c57b9d user: drh tags: trunk) | |
| 11:50 | Install sqlite3_malloc/sqlite3_free() as the JS-side WASM allocator (as opposed to replacing C-level's malloc()/free() with them). All tests work and this eliminates the potential for allocator discrepancies when using the (de)serialize APIs. (check-in: 95c78f6b46 user: stephan tags: trunk) | |
| 10:05 | Merge trunk into wasi-patches branch. (check-in: 64cf34a855 user: stephan tags: wasi-patches) | |
| 08:37 | Simplify how the OPFS VFS async proxy copies initial state sent to it from the synchronous side of the connection. Make the lock-wait time a multiple of the wait-loop timeout interval. (check-in: eddafafffa user: stephan tags: trunk) | |
| 07:48 | OPFS VFS: remove an invalid TODO and fix a property name typo which caused xCheckReservedLock() to always report false. (check-in: 3b037caa2f user: stephan tags: trunk) | |
| 07:17 | Rename some OPFS JS files. Prevent JS bindings of sqlite3_uri_...() from performing JS-to-C-string argument conversion on their first argument, as doing so is specifically illegal. (check-in: 79832808de user: stephan tags: trunk) | |
| 05:27 | Refactor a significant chunk of the OPFS sqlite3_vfs init code into sqlite3.VfsHelper, and internal-use-only API encapsulating code relevant to creating new VFSes in JS. Intended to assist in pending experimentation with an alternative OPFS VFS. (check-in: e25d7b080a user: stephan tags: trunk) | |
| 03:08 | Doc and logging text tweaks in the OPFS async proxy and test app. (check-in: 7ce8608e22 user: stephan tags: trunk) | |
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2022-11-29
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| 18:28 | sqlite3.oo1.OpfsDb: default to journal_mode=persist, as current tests show it to be marginally faster than truncate/delete in Chrome v109. Also increase default busy_timeout from 2 seconds to 3, admittedly on a whim. (check-in: d0c8fa30a3 user: stephan tags: trunk) | |
| 18:00 | OPFS speedtest1: hide a currently-broken/to-fix WASMFS-build link. (check-in: cde95d382f user: stephan tags: trunk) | |
| 17:52 | Change the handling of hwtime.h to make it easier to compile performance measurement builds that make use of hwtime.h. This should not affect productions builds. (check-in: f64a224244 user: drh tags: trunk) | |
| 11:28 | Fix legacy build system main.mk to include basexx.c in testfixture builds. (check-in: 8c9200b7e1 user: dan tags: trunk) | |
| 06:56 | Rename one instance of opfs.OpfsDb to oo1.OpfsDb, as per [0c5c51f4fb04]. (check-in: 75b04c9b30 user: stephan tags: trunk) | |
| 06:09 | Minor internal cleanups and docs in the OPFS sqlite3_vfs. (check-in: 61799b05ff user: stephan tags: trunk) | |
| 05:25 | Internal restructuring of the OPFS sqlite3_vfs in order to facilitate certain experimentation and improve error reporting/hints if it cannot be activated. Deprecate the name sqlite3.opfs.OpfsDb, preferring sqlite3.oo1.OpfsDb for consistency with JsStorageDb and any future DB subclasses. (check-in: 0c5c51f4fb user: stephan tags: trunk) | |
| 02:23 | Add an explicit warning about the current API-instability of the sqlite3.opfs namespace, which may need to be eliminated based on re-thinking of how the OPFS sqlite3_vfs is registered. Comment changes only - no code. (check-in: 0cb2fd1417 user: stephan tags: trunk) | |
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2022-11-28
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| 21:17 | Check-in [8d5b76593d82b3a5] contained an error that was causing some obscure error codes to be lost. Fixed here. (check-in: 46cdd3637d user: drh tags: trunk) | |
| 21:09 | Get ext/misc/basexx.c into the testfixture.exe build for MSC. (check-in: bb2c5d088e user: larrybr tags: trunk) | |
| 20:08 | Fix harmless compiler warnings. (check-in: 8d5b76593d user: drh tags: trunk) | |
| 19:42 | Implementation of enhancement request [695a1a53dea6b240]: The query planner has improved awareness of when indexes on expressions are covering and adjusts their costs accordingly. (check-in: e3474d79b2 user: drh tags: trunk) | |
| 18:41 | Add the SQLITE_FCNTL_RESET_CACHE verb. Use it to ensure that the page cache is purged before and after a the recovery extension is run. (check-in: 6db0bc4bc0 user: dan tags: trunk) | |
| 18:17 | Test cases added derived from the enhancment ticket. (Leaf check-in: c022c0152a user: drh tags: covering-indexed-expr) | |
| 16:11 | Merge trunk changes into covering-index-expr branch. (check-in: 89d775ada3 user: drh tags: covering-indexed-expr) | |
| 15:23 | Rework the covering index checking routine, whereIsCoveringIndex(), so that it can return a "maybe" result for aggregate queries where we are not exactly sure. The index is scored as if it is covering, but the main table is still opened. (check-in: b8eec42143 user: drh tags: covering-indexed-expr) | |
| 14:51 | Add (optional) base64 and base85 UDF extensions. (check-in: b44ab10c49 user: larrybr tags: trunk) | |
| 14:11 | Sync w/trunk, zap surplus space. (Closed-Leaf check-in: b8345630a2 user: larrybr tags: base_convert) | |
| 13:47 | Ensure the RETURNING clause is honoured when a row of a temp table is updated by an ON CONFLICT clause. (check-in: a2449bcc2c user: dan tags: trunk) | |
| 02:28 | Conform CLI .trace arg handling to its help. (check-in: 31546ea320 user: larrybr tags: trunk) | |
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2022-11-27
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| 00:57 | Document an OPFS API change in Chrome v108 which does not break our code but does change several formerly async methods to synchronous. No code changes. (check-in: e9dd87e28a user: stephan tags: trunk) | |
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2022-11-26
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| 20:52 | Better reporting of when the WHERE clause analysis thinks that an index is covering. (check-in: 17ebcf316b user: drh tags: covering-indexed-expr) | |
| 20:48 | Show which AggInfo.aCol an Expr node represents in the tree trace debugging logic. Does not affect production builds. (check-in: b8076f4dc5 user: drh tags: trunk) | |
| 20:13 | Merge trunk fixes into the covering-indexed-expr branch. (check-in: 9ac67ff968 user: drh tags: covering-indexed-expr) | |
| 20:12 | Fix an incorrect assertion-fault in the "TREETRACE" debugging logic on select.c. The problem does not affect production builds. (check-in: f11bb42292 user: drh tags: trunk) | |
| 15:24 | OPFS VFS: add the opfs-unlock-asap=1 URI flag which tells the VFS to release implicit locks ASAP instead of during VFS idle time. This improves concurrency notably in the test app but brings a significant performance penalty in speedtest1 (roughly 4x slowdown). This is not the final word in OPFS concurrency, but gets us a step further. (check-in: 9542f9ce9e user: stephan tags: trunk) | |
| 14:19 | Experimental changes to help the query planner detect when an expression index is coverting. Works somewhat, but there are tests that fail. (check-in: 968c189bcf user: drh tags: covering-indexed-expr) | |
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2022-11-25
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| 17:05 | Relax restriction (8) on the push-down optimization so that it only applies if one or more columns uses a collating sequence other than BINARY. See forum post 3824ced748baa808 and check-in [346a3b12b861ce7b]. (check-in: adbca3448e user: drh tags: trunk) | |
| 16:32 | Fix #ifdefs so that restrictions (8) and (9) of the push-down optimization are still enforced even if compiled with SQLITE_OMIT_WINDOWFUNC. This fixes a bug introduced by check-in [346a3b12b861ce7b]. (check-in: 09e1e42e0f user: drh tags: trunk) | |
| 16:10 | Improve the query planner such that it is able to make use of indexed expressions within an aggregate query with GROUP BY. This implements enhancement request [99378177930f87bd]. (check-in: b9190d3da7 user: drh tags: trunk) | |
| 15:52 | Add restriction (9) to the push-down optimization: If the subquery is a compound then all arms of the compound must have the same affinity. dbsqlfuzz 3a548de406a50e896c1bf7142692d35d339d697f. (check-in: 1ad41840c5 user: drh tags: trunk) | |
| 13:26 | Remove a redundant assert() statement. (Closed-Leaf check-in: e3e1b453dc user: drh tags: agg-with-indexed-expr) | |
| 13:15 | Improve the robustness of the updateAccumulator() routine against OOM. (check-in: d2844f577b user: drh tags: agg-with-indexed-expr) | |
| 13:08 | Improved comments. Add assert()s to verify that the AggInfo structure is unchanged after registers have been assigned. (check-in: 5200b84195 user: drh tags: agg-with-indexed-expr) | |
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2022-11-24
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| 23:35 | Correctly deal with IF-NULL-ROW operators when dealing with indexed expressions in aggregates. (check-in: 939cb47025 user: drh tags: agg-with-indexed-expr) | |
| 20:11 | Speed up base85() conversions and sync w/trunk. (check-in: 17b823500a user: larrybr tags: base_convert) | |
| 19:02 | Take care not to try to add comments to a TK_AGG_COLUMN opcode that does not have an associated Table object because it is a reference to an indexed expression. (check-in: 5fc23863e4 user: drh tags: agg-with-indexed-expr) | |
| 18:45 | Change a NEVER() into an assert(). (check-in: a0fd44f4e5 user: drh tags: agg-with-indexed-expr) | |
| 17:58 | Fix a test case in fts3expr4.test to account for different locales. (check-in: a2b6883ac2 user: dan tags: trunk) | |
| 17:53 | More work on the OPFS concurrency testing app. (Closed-Leaf check-in: c0458caca3 user: stephan tags: opfs-unlock-asap) | |
| 16:03 | JS documentation cleanups. No code changes. (check-in: 18e89a436d user: stephan tags: trunk) | |
| 15:32 | Update multiplex3.test to account for the fact that the multiplexor xDelete method may return an error even if it manages to delete the first chunk of a file. (check-in: 1a7f325473 user: dan tags: trunk) | |
| 15:04 | Add NEVER() and ALWAYS() macros on branches that are believed to be unreachable. (check-in: 3a901e88c8 user: drh tags: agg-with-indexed-expr) | |
| 13:19 | New test cases. Fix the logic so that it works for GROUP BY aggregates that do not require sorting. (check-in: ef6ebe7922 user: drh tags: agg-with-indexed-expr) | |
| 02:59 | Speed up base64 conversions, and add test with more data for the baseNN conversion to grind. (check-in: 6c84ae4ba8 user: larrybr tags: base_convert) | |
| 02:35 | Add sqlite3.oo1.DB.prototype.checkRc() and tests for both that method and its class-level counterpart. (check-in: f7eaa6ba21 user: stephan tags: trunk) | |
| 01:41 | Merge the latest trunk changes into the agg-with-indexed-expr branch to simplify diffs. (check-in: 38c3d3f1ed user: drh tags: agg-with-indexed-expr) | |
| 01:40 | Add explanatory comment to the new optimization. And add a test case. (check-in: e6c20f61de user: drh tags: agg-with-indexed-expr) | |
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2022-11-23
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| 21:09 | Minor JS doc updates. (check-in: 27efd63ad7 user: stephan tags: trunk) | |
| 21:03 | Add optional zSchema argument to sqlite3_js_db_export(). (check-in: 9c23644b1e user: stephan tags: trunk) | |
| 20:49 | OPFS concurrency test: add a URL flag to enable/disable unlock-asap mode. (check-in: 1c1bf22ead user: stephan tags: opfs-unlock-asap) | |
| 19:03 | Add an experimental OPFS VFS-specific URI flag, opfs-unlock-asap, which tells the VFS to release implicit locks ASAP. This permits higher concurrency but hurts performance considerably. This may or may not be obsoleted by other concurrency-related experimentation. (check-in: d23c917013 user: stephan tags: opfs-unlock-asap) | |
| 18:51 | Aggregates with GROUP BY now make use of expressions on indexes. This code works and gets the correct answer for the test case in the ticket. Lots more testing and documentation is needed, however. (check-in: 8dcf9f2031 user: drh tags: agg-with-indexed-expr) | |
| 17:56 | This attempt at modifying AggInfo to make use of indexed expressions does not work. It gets an incorrect answer for the test case shown in the ticket. (check-in: 84c06023f4 user: drh tags: agg-with-indexed-expr) | |
| 16:39 | Initial infrastructure for adding a mode to the OPFS VFS which causes implicit locks to be released ASAP, which increases concurrency at the cost of performance. (check-in: c5b7a9715a user: stephan tags: opfs-unlock-asap) | |
| 16:08 | Update Makefile.in to include new target "sqlite3r.c". For generating "sqlite3r.c" and "sqlite3r.h", versions of the amalgamation that include the recover extension. To build the shell tool against these files, add -DSQLITE_HAVE_SQLITE3R. (check-in: 5f135575b9 user: dan tags: trunk) | |
| 15:52 | Remove a bit of over-cleverness which breaks loading of sqlite3.js in some main-thread cases. Broken by [96f76e7616]. (check-in: 220cc4c639 user: stephan tags: trunk) | |
| 15:33 | OPFS concurrency tester: ensure that the work interval timer does not overlap with the work time. (check-in: 8f2076553b user: stephan tags: trunk) | |
| 14:13 | Further foundation prep work prior to starting to flesh-out the optimizeAggregateUseOfIndexedExpr() routine. (check-in: 23145fe999 user: drh tags: agg-with-indexed-expr) | |
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2022-11-22
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| 22:46 | Add more baseNN tests, get oversize error trapping working, and sync w/trunk (check-in: 03819e9368 user: larrybr tags: base_convert) | |
| 20:58 | Merge enhancements and fixes from trunk. (check-in: f8932e04d4 user: drh tags: agg-with-indexed-expr) | |
| 20:37 | Add the stub function: optimizeAggregateUsingIndexedExpr(). The hope is that we can fill this in with a routine that does useful optimizations. (check-in: d85bb724fd user: drh tags: agg-with-indexed-expr) | |
| 20:04 | Avoid naming collision between the sha1 and shathree extensions. (check-in: 9ec923b5dc user: mistachkin tags: trunk) | |
| 19:56 | Include the treetrace bitmap comment accidentally omitted from the previous check-in. (check-in: db07471c53 user: drh tags: trunk) | |
| 19:51 | Merge trunk fixes and enhancements into the agg-with-indexed-expr branch. (check-in: 070634781a user: drh tags: agg-with-indexed-expr) | |
| 19:49 | Rename the SELECTTRACE macro to TREETRACE, so that is corresponds to the new CLI command. Renumber all of the bits in the bitmask used to enable various kinds of tracing, and add a trace bitmap decoder in sqliteInt.h. Changes to debugging logic only. No (intentional) changes to production code. (check-in: 8036445a36 user: drh tags: trunk) | |
| 19:12 | Sync w/trunk. Ready for merge to trunk. (check-in: ff67460e1a user: larrybr tags: base_convert) | |
| 19:04 | Add test/basexx1.test to test is_base85(t), base85(x) and base64(x). Sync w/trunk. (check-in: 4e43345477 user: larrybr tags: base_convert) | |
| 18:24 | Fix the error message in the CLI for "no such VFS". Forum post 1217fdd6b3. (check-in: b344f33d16 user: drh tags: branch-3.40) | |
| 18:24 | Fix the error message in the CLI for "no such VFS". Forum post 1217fdd6b3. (check-in: 861af465fd user: drh tags: trunk) | |
| 16:12 | Add Makefile.in targets for sqlite3r.c and sqlite3r.h, versions of the amalgamation that include the recover extension. (Closed-Leaf check-in: 59a837cfc7 user: dan tags: make-sqlite3r.c) | |
| 15:48 | Bump the version number to 3.40.1. (check-in: d0ca348b25 user: drh tags: branch-3.40) | |
| 15:47 | Fix last function pointer in sqlite3Apis init. Reported at forum post eba0faa96d. (check-in: b3795d28fe user: drh tags: branch-3.40) | |
| 15:43 | Since the memory registers used by the columns and functions of an AggInfo object are sequential, it is not neecessary to remember each register separately. We can simply remember the first one and do the math when others are needed. (check-in: dc5bd34963 user: drh tags: agg-with-indexed-expr) | |
| 15:41 | Fix last function pointer in sqlite3Apis init. Reported at forum post eba0faa96d. (check-in: 6d5dc9eed5 user: larrybr tags: trunk) | |
| 14:31 | Omit the unnecessary AggInfo.mnReg field. (check-in: d79c58ef08 user: drh tags: agg-with-indexed-expr) | |
| 14:10 | Factor out the allocation of registers for aggregates into a separate subroutine. (check-in: 4475799d5b user: drh tags: agg-with-indexed-expr) | |
| 13:33 | This is the first in what is anticipated to be a long sequence of incremental changes aimed at improving aggregate query processing, and in particular helping aggregate queries take better advantage of indexes on expression. The end goal is to resolve ticket [99378177930f87bd], though it remains to be seen whether or not I can get there with this approach. (check-in: cba837eae9 user: drh tags: agg-with-indexed-expr) | |
| 12:47 | Convert an ALWAYS() in sqlite3DbSpanDup() into an assert(), for a performance increase and size reduction. (check-in: 21e80a2973 user: drh tags: trunk) | |
|
2022-11-21
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| 17:40 | Split out the debugging code that dumps an AggInfo object into a separate subroutine called printAggInfo() so that it can be invoked interactively during debugging. No changes to production code. (check-in: dc33cfbede user: drh tags: trunk) | |
| 16:40 | Change the name of the Parse.pIdxExpr field to pIdxEpr so that the name is distinct from all other identifiers in the code and thus less confusing. (check-in: a2962d0187 user: drh tags: trunk) | |
| 16:03 | Merge trunk into wasi-patches branch to clean up the diff view. (check-in: 95de6742d3 user: stephan tags: wasi-patches) | |
| 16:00 | OPFS contention test: give each worker a distinct recognizable name instead of a random one. (check-in: 5f564bf7de user: stephan tags: trunk) | |
| 15:55 | Performance optimization and size reduction in insertCell() by omitting the "pRC" argument and instead returning the result code as an integer. (check-in: bee94d1bb0 user: drh tags: trunk) | |
| 14:13 | Performance optimization to sqlite3BtreeInsert(). (check-in: b8976ebfe0 user: drh tags: trunk) | |
| 13:35 | Small performance improvement in sqlite3BtreeTransferRow(). (check-in: dab959ea3e user: drh tags: trunk) | |
| 06:07 | Add new JS tests dir to those pushed to the test server. (check-in: 07182dca9f user: stephan tags: trunk) | |
| 05:18 | More tweaking of OPFS concurrency measures and the related test app. (check-in: a8d4da1501 user: stephan tags: trunk) | |
| 04:12 | Resolve missing SQLITE_LOCKED result code which triggered a new (since last checkin) exception in the OPFS VFS. Improve output of the OPFS contention tester app. (check-in: 2debbbca33 user: stephan tags: trunk) | |
| 03:50 | Add test app for experimenting with multi-worker OPFS concurrency. Tweak OPFS VFS to significantly improve the otherwise "unfortunate" concurrency situation. (check-in: 96f76e7616 user: stephan tags: trunk) | |
| 02:18 | Get clean builds for MS tools. Add build examples for extension glommer (basexx.c) Make sure extensions build for dynamic load and built into shell. (check-in: da940d507e user: larrybr tags: base_convert) | |
| 00:11 | Fix a base64 decode bug. Provide for convenient inclusion of extension(s) built into the CLI, to simplify testing and for its own sake. Improve comments. Cure collision between base64.c and base85.c when both are in the same translation unit. (check-in: 07543d23a9 user: larrybr tags: base_convert) | |
|
2022-11-20
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| 15:30 | Remove check for WASM_WASI macro when detecting wasi compilation mode, as that macro is project-specific. Rely only on __wasi__ (exposed by clang) to detect wasi compilation mode. (check-in: d469ac0c44 user: stephan tags: wasi-patches) | |
| 05:47 | js dist: account for a file rename in the previous checkin. (check-in: 469f9011a8 user: stephan tags: trunk) | |
| 05:36 | Further minor cleanups in the JS build related to vanilla vs ESM. (check-in: 100a596800 user: stephan tags: trunk) | |
| 04:14 | Remove an obsolete reference to WASMFS from ext/wasm/index.html. (check-in: 51ff681864 user: stephan tags: trunk) | |
| 04:14 | Generic cleanups and doc additions in the wasm build files. (check-in: d10f385e36 user: stephan tags: trunk) | |