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100 check-ins occurring around 5987ca1ff94ed3c1.
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2017-02-06
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| 16:52 | Remove a small amount of unnecessary code from R-Tree. (check-in: e5aea894 user: drh tags: trunk) | |
| 15:27 | Add the "max-limits" utility program to the tools/ subdirectory. (check-in: c54173b6 user: drh tags: trunk) | |
| 07:37 | Fix a bug in kvtest causing "init --variance 0" runs to generate single byte blob values only. (check-in: 6b0276f9 user: dan tags: trunk) | |
| 01:19 | Remove incorrect testcase() macros from R-Tree. (check-in: 853a58a7 user: drh tags: trunk) | |
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2017-02-04
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| 20:15 | Simplification to the error handling to extension loading in sqlite3_open(). (check-in: ec8ff892 user: drh tags: trunk) | |
| 17:33 | Allow sqlite3session_apply() to apply changesets to tables that have been extended using ALTER TABLE ADD COLUMN. (check-in: b20ff81f user: dan tags: trunk) | |
| 15:29 | Merge recent trunk enhancements. (check-in: 6c3f0902 user: drh tags: apple-osx) | |
| 14:30 | Merge the latest trunk changes, especially the RTREE enhancement to use sqlite3_blob objects. (Leaf check-in: 61bd2a88 user: drh tags: sqlite3_blob_reset) | |
| 14:24 | In RTREE, use an sqlite3_blob object rather than an sqlite3_stmt object for reading content out of the %_node shadow table. (check-in: 97ccf3e4 user: drh tags: trunk) | |
| 13:12 | Close sqlite3_blob objects on xSync rather than waiting until xCommit. (Closed-Leaf check-in: 95ee745f user: drh tags: rtree-blob-agressive-release) | |
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2017-02-03
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| 20:54 | Improved performance and stack usage when processing VALUES clauses with a very large number of rows. (check-in: 5706d470 user: drh tags: trunk) | |
| 19:16 | Avoid a performance problem when very large "VALUES(..), (..), (..)" terms are used in queries. (Closed-Leaf check-in: f5306ad6 user: dan tags: recursive-selectdup) | |
| 15:16 | Improved tests for the carray() table-valued function. (check-in: 83a099f1 user: drh tags: trunk) | |
| 14:44 | Modify the sqlite3SelectDup() routine to avoid recursing on Select.pPrior. (check-in: a7674ead user: dan tags: recursive-selectdup) | |
| 00:07 | Merge in the sqlite3_blob_reset() interface. (Closed-Leaf check-in: e9c94a1f user: drh tags: rtree-sqlite3_blob) | |
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2017-02-02
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| 23:57 | Add the sqlite3_blob_reset() interface. Enhance the behavior of sqlite3_blob objects so that they can go active again after encountering an error by rerunning sqlite3_blob_reopen(). More work needed on the documentation. (check-in: 53b77838 user: drh tags: sqlite3_blob_reset) | |
| 20:32 | Ensure that all cursors have their positions saved prior to rolling back a savepoint. (check-in: 8e03a8e9 user: drh tags: trunk) | |
| 19:24 | Fix issues in the sha1 extension seen with MSVC. (check-in: 5a0da77c user: mistachkin tags: trunk) | |
| 16:30 | Remove the unused pReadNode prepared statement from each RTREE object. (check-in: e51dc0ec user: drh tags: rtree-sqlite3_blob) | |
| 16:08 | Fix a potential uninitialized (though harmless) variable in RTREE. (check-in: a1c74e09 user: drh tags: rtree-sqlite3_blob) | |
| 15:35 | The sqlite3_blob_close() interface can cause recursive invocations of nodeBlobReset() in RTREE. Make sure that does not cause problems. (check-in: 88333441 user: drh tags: rtree-sqlite3_blob) | |
| 14:40 | Change RTREE so that the sqlite3_blob object is closed whenever the cursor count drops to zero and there is not a pending write transaction. (check-in: 9bb4eafe user: drh tags: rtree-sqlite3_blob) | |
| 02:28 | Use the sqlite3_blob interface for reading values from the %_node shadow table in RTREE. This is a work in progress. There are still some minor problems. (check-in: fc4917d7 user: drh tags: rtree-sqlite3_blob) | |
| 00:46 | This is an experimental patch that ensures that all cursors have their position saved prior to starting a ROLLBACK TO. (Closed-Leaf check-in: 01d97e5b user: drh tags: savepoint-rollback) | |
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2017-02-01
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| 23:06 | Fix harmless compiler warnings seen with MSVC. (check-in: 0c66cf0f user: mistachkin tags: trunk) | |
| 23:03 | Backout the change in [02f6293f27] as it causes MSVC to complain. (check-in: aaae74d0 user: mistachkin tags: trunk) | |
| 22:59 | Fix C99-style variable declaration issue seen with older versions of MSVC. (check-in: 54d28546 user: mistachkin tags: trunk) | |
| 22:43 | Fix harmless compiler warnings seen with MSVC. (Closed-Leaf check-in: 997f765b user: mistachkin tags: msvcWarn) | |
| 22:32 | Add an option to the MSVC makefile to enable treating warnings as errors. (check-in: 6a378c29 user: mistachkin tags: trunk) | |
| 17:08 | Unwind the RTREE dimension loop inside of rtreeCallbackConstraint(). (check-in: 4854ea9c user: drh tags: trunk) | |
| 16:41 | Completely unroll the dimension loop inside of cellArea() in RTREE. (check-in: 3c4c0126 user: drh tags: trunk) | |
| 15:49 | Precompute the nDim2 value in the Rtree object and use that to make loops over coordinates faster. (check-in: f1f3c8cc user: drh tags: trunk) | |
| 15:24 | Use compiler intrinsic functions (when available) for byteswapping in RTREE. (check-in: 82fcd54a user: drh tags: trunk) | |
| 15:19 | Fix the build by making the OPFLAG_ISNOOP macro available unconditionally. (check-in: 510933cb user: drh tags: trunk) | |
| 14:19 | Update the documentation comment in sqlite.h.in for sqlite3_preupdate_hook(). (check-in: 7f857020 user: dan tags: trunk) | |
| 14:10 | Changes so that the pre-update hook and the sessions module work with WITHOUT ROWID tables. (check-in: 964bdc27 user: dan tags: trunk) | |
| 02:25 | More RTREE performance optimizations related to decoding values. (check-in: c5395e74 user: drh tags: trunk) | |
| 01:34 | Improved comments on the statGet() implementation in ANALYZE. No changes to code. (check-in: 9663eea2 user: drh tags: trunk) | |
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2017-01-31
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| 21:22 | R-TREE optimization: unwrap the coordinate decode loop in rtreeCallbackConstraint(). (check-in: 0bf7b518 user: drh tags: trunk) | |
| 19:10 | Very small performance improvements and size reductions in sqlite3VdbeExec() and blobSeekToRow(). (check-in: 85dddf2b user: drh tags: trunk) | |
| 19:02 | Simplifications to blobSeekToRow(). (Closed-Leaf check-in: 495ea824 user: drh tags: micro-optimizations) | |
| 17:31 | Add a speed-test program for the sessions module. (Closed-Leaf check-in: 25f1275f user: dan tags: preupdate-without-rowid) | |
| 16:49 | Remove a C99-style comment. Fixes to the kvtest-speed.sh script. (check-in: 91eb6b62 user: drh tags: micro-optimizations) | |
| 16:43 | Remove another unnecessary local variable initialization from sqlite3VdbeExec() (check-in: 2361b03b user: drh tags: micro-optimizations) | |
| 16:34 | Remove an unnecessary initialization of the pOp variable in sqlite3VdbeExec(). (check-in: 02f6293f user: drh tags: micro-optimizations) | |
| 15:29 | Add the "stat" command to kvtest.c. Also add the --variance option to the "init" command. Add the tool/kvtest-speed.sh script used for doing performance testing on key/value access patterns. (check-in: b63deed6 user: drh tags: trunk) | |
| 15:27 | Fix a typo in a comment. (check-in: bd22bf9c user: drh tags: trunk) | |
| 14:08 | Merge latest trunk with this branch. (check-in: 4a592abb user: dan tags: preupdate-without-rowid) | |
| 12:41 | Further minor enhancement and size reduction in sqlite3ExprAssignVarNumber(). (check-in: eacfdcf2 user: drh tags: trunk) | |
| 03:52 | Performance optimization in sqlite3ExprAssignVarNumber(). (check-in: 5987ca1f user: drh tags: trunk) | |
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2017-01-30
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| 19:44 | Experimental change to invoke the preupdate hook when WITHOUT ROWID tables are written. (check-in: 856f8604 user: dan tags: preupdate-without-rowid) | |
| 11:38 | Fix building with SQLITE_OMIT_FOREIGN_KEY defined. (check-in: e93d2c49 user: dan tags: trunk) | |
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2017-01-28
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| 20:46 | In the amalgamation, allocate the parser engine object from stack rather than from heap, for improved performance. This only happens in the amalgamation, since otherwise the sqlite3RunParser() routine does not know the object size. (check-in: 4fe879d4 user: drh tags: trunk) | |
| 19:53 | Fix a couple comment typos. No changes to code. (check-in: 2a2e7d86 user: mistachkin tags: trunk) | |
| 19:45 | Avoid redundant table b-tree cursor seeks in UPDATE statements that use the two-pass strategy. (check-in: dc555b10 user: dan tags: trunk) | |
| 15:26 | Updates to the sqlite3_blob documentation. No changes to code. (check-in: 426b440a user: drh tags: trunk) | |
| 13:40 | In the speed-check.sh script, automatically invoke "fossil test-diff --tk" on the cachegrind output against trunk, if not generating a trunk run. (check-in: aa1ab371 user: drh tags: trunk) | |
| 06:50 | Fix a typo in the docs for sqlite3_update_hook(). (check-in: 7c029655 user: dan tags: trunk) | |
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2017-01-27
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| 19:27 | Add the sha1.c loadable extension that implements the sha1() and sha1_query() SQL functions. (check-in: 24e77c1c user: drh tags: trunk) | |
| 17:02 | Fix a problem causing the pre-update hook to be invoked by DROP TABLE statements. (check-in: fbb6bf1b user: dan tags: trunk) | |
| 16:39 | Merge all recent trunk enhancements into the apple-osx branch. (check-in: 0e14fe1b user: drh tags: apple-osx) | |
| 16:24 | Merge all recent enhancements from trunk. (check-in: fe86ff54 user: drh tags: est_count_pragma) | |
| 13:14 | Alternative ICU fix (compare to check-in [50e60cb4]) that avoids casting integers to pointers. (check-in: d9752c8f user: drh tags: trunk) | |
| 01:52 | In the command-line shell, enhance the ".mode" command so that it restores the default column and row separators for modes "line", "list", "column", and "tcl". (check-in: 58f02e6e user: drh tags: trunk) | |
| 01:25 | Another micro-optimization in accessPayload(). Slightly smaller and faster. (check-in: c012619b user: drh tags: trunk) | |
| 01:13 | Performance optimization in accessPayload(). (check-in: ebb1fd98 user: drh tags: trunk) | |
| 00:31 | Simplify the accessPayload() routine so that it always populates the overflow page cache. In the one case where populating the page cache can lead to problems, simply invalidate the cache as soon as accessPayload() returns. This simplification reduces code size and helps accessPayload() to run a little faster. This backs out the eOp==2 mode of accessPayload() added by check-in [da59198505]. (check-in: 68e7a8c6 user: drh tags: trunk) | |
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2017-01-26
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| 21:30 | Remove an unreachable branch in the error handling logic for sqlite3BtreePayloadChecked(). (check-in: 293bf3ed user: drh tags: trunk) | |
| 18:00 | Improvement to the OP_Permutation opcode to prevent it from using CPU cycles for initialization in prepared statements that do not use that opcode. (check-in: b4a98f65 user: drh tags: trunk) | |
| 17:26 | Remove the obsolete lastRowid cache from the sqlite3VdbeExec() for a size reduction and performance improvement. (check-in: b4803184 user: drh tags: trunk) | |
| 17:11 | Performance optimization in sqlite3VdbeCloseStatement(). (check-in: 1e96e5ec user: drh tags: trunk) | |
| 16:54 | Performance optimization to sqlite3_blob_read(). (check-in: 7459f4b7 user: drh tags: trunk) | |
| 16:27 | Minor simplification and performance optimization for Direct Overflow Read. (check-in: 3e96d6ef user: drh tags: trunk) | |
| 02:26 | Make SQLITE_DIRECT_OVERFLOW_READ work for in WAL mode as long as the page being read is not in the the -wal file. (check-in: 9879be18 user: drh tags: trunk) | |
| 01:54 | Enhancements to the kvtest utility program. Add the --jmode option. Improved output formatting. (check-in: 62a4851c user: drh tags: trunk) | |
| 00:58 | Modify the ICU extension to use a static initializer, as VC++ complains about a dynamic initialization. Maybe the dynamic structure initialization is a GCC extension. This fixes a problem identified on the SQLite mailing list by Ziemowit Laski. (check-in: 50e60cb4 user: drh tags: trunk) | |
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2017-01-25
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| 20:55 | Trim NULL values off the end of records when the SQLITE_ENABLE_NULL_TRIM compile-time option is used. Increase the size of the P5 operand to 16 bits. Fix a problem with short records in the sessions extension. (check-in: 4801bd59 user: drh tags: trunk) | |
| 18:53 | Fix another pre-update hook issue, this time in sqlite3preupdate_old(). (Closed-Leaf check-in: c7651d21 user: dan tags: trim-nulls) | |
| 18:12 | Fix a test script problem in exclusive2.test causing it to fail on this branch. (check-in: f66614dc user: dan tags: trim-nulls) | |
| 17:44 | Fix a problem with the pre-update hook on this branch. (check-in: 6fc4fbfa user: dan tags: trim-nulls) | |
| 14:58 | Experimental enhancement to automatically trim NULL values from the end of records, for a reduced disk footprint. This change also involves increasing the P5 operand from 8 to 16 bits. (check-in: 118ded40 user: drh tags: trim-nulls) | |
| 14:38 | Ensure that sqlite3_blob_reopen() correctly handles short rows. Fix for ticket [e6e962d6b0f06f46e]. (check-in: 8cd1a445 user: drh tags: trunk) | |
| 13:54 | Fix SQLITEINT_H macro usage in two extensions. (check-in: 0803390c user: drh tags: trunk) | |
| 04:41 | Ensure that sqlite3_blob_reopen() correctly handles short rows. Proposed fix for ticket [e6e962d6b0f06f46e]. Further testing needed. (Closed-Leaf check-in: 57d8dad3 user: drh tags: blob_reopen-fix) | |
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2017-01-23
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| 21:12 | Experimental changes to permit a VFS to directly override the initial page size. (Leaf check-in: 64131724 user: mistachkin tags: pagePerSector) | |
| 19:11 | Document the --mmap option in the --help screen for kvtest. Enhance kvtest so that numeric arguments can have suffixes like "K" or "M". Add kvtest to the unix makefiles. (check-in: 175bda87 user: drh tags: trunk) | |
| 18:40 | Add the --mmap option to the kvtest utility program. (check-in: 4948f7e6 user: drh tags: trunk) | |
| 16:56 | Optimization: Try to avoid unnecessary btree searching when repositioning a cursor to the next row. (check-in: ee793d30 user: drh tags: trunk) | |
| 15:58 | Add the missing SQLITE_API symbol to test_delete.c (it is not added automatically as this file is not part of the amalgamation). (check-in: 7a4f512d user: dan tags: trunk) | |
| 07:06 | Fix a problem preventing FTS5 from correctly passing the FTS5_TOKENIZE_PREFIX flag to custom tokenizer implementations. (check-in: 03c60134 user: dan tags: trunk) | |
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2017-01-22
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| 16:34 | Fix an uninitialized variable in the command-line shell. (check-in: 06b8001a user: drh tags: trunk) | |
| 02:04 | Fixes to documentation comments in the public header file. (check-in: 772dcb08 user: mistachkin tags: trunk) | |
| 00:11 | Fix an initialized variable in kvtest. (check-in: ed62c5a6 user: drh tags: trunk) | |
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2017-01-21
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| 21:47 | A better implementation of the moveto-neighbor optimization that checks for nearby rows on adjacent pages. (Closed-Leaf check-in: 2c4ecb85 user: drh tags: btree-moveto-neighbor) | |
| 16:54 | B-tree optimization: When seeking on a rowid table that has already been positioned, check to see if the new row happens to be the next row on the same leaf page. That is a reasonably common case, and if it is true it avoids a full binary search. (check-in: 8e5cfb20 user: drh tags: btree-moveto-neighbor) | |
| 16:27 | Change sqlite3_blob_reopen() to call sqlite3VdbeExec() directly rather than going through sqlite3_step(). Performance enhancement. (check-in: 347df3c1 user: drh tags: trunk) | |
| 16:21 | Fix problems in the previous commit. (Leaf check-in: 74ad80eb user: dan tags: trigger-trace) | |
| 15:58 | Add extra (somewhat inefficient) trace callbacks for triggers if SQLITE_TRACE_TRIGGER is defined. (check-in: ffda1d1e user: dan tags: trigger-trace) | |
| 15:55 | In the kvtest.c test utility, reuse the buffer into which blobs are read, rather than reallocating it for each row. This is a closer match to how other test programs work, and thus provides a better comparison. (check-in: 0d1ad13a user: drh tags: trunk) | |
| 15:30 | A proof-of-concept for running sqlite3_blob_open() without using OP_Column when operating on a pure key/value table. This demo does not include any corrupt database checking. Uses about 3% fewer CPU cycles on a key/value performance test. (Leaf check-in: 4cda3b30 user: drh tags: kv-access-opt-demo) | |