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SQLite training in Houston TX on 2019-11-05 (details)
Part of the 2019 Tcl Conference

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100 descendants and 100 ancestors of [68e7a8c6]

2017-02-13
16:02
Version 3.17.0 check-in: ada05cfa user: drh tags: release, version-3.17.0, branch-3.17
13:35
Change all legacy instances of "#if SQLITE_DEBUG" to "#ifdef SQLITE_DEBUG" for consistency. check-in: 670f10b2 user: drh tags: trunk
13:26
Fix typos in using the MSVC_VERSION macro. check-in: f3b65926 user: drh tags: trunk
13:20
Avoid a duplication #define in FTS5 check-in: c447441c user: drh tags: trunk
11:35
Fix typos in using the MSVC_VERSION macro. check-in: 25ebadd0 user: drh tags: branch-3.17
2017-02-11
15:02
Ensure that indexed expressions with collating sequences are handled correctly. Fix for ticket [eb703ba7b50c1a5] backported from trunk. check-in: b2e49ae3 user: drh tags: branch-3.17
14:59
Fix indexes on expressions so that they can be actually used with a COLLATE clause. check-in: e464b919 user: drh tags: trunk
13:51
Ensure that indexed expressions with collating sequences are handled correctly. Proposed fix for ticket [eb703ba7b50c1a5]. check-in: 9689d04b user: drh tags: trunk
2017-02-10
21:40
Bump the version number up to 3.18.0. check-in: 7520c238 user: drh tags: trunk
21:37
Enhance the LIKE optimization so that it works for arbitrary expressions on the LHS as long as the pattern on the RHS does not begin with a digit or a minus sign. check-in: 158290c0 user: drh tags: trunk
19:38
Add the "," flag to printf(). check-in: 064445b1 user: drh tags: trunk
17:38
Version 3.17.0 release candidate check-in: ad867e87 user: drh tags: branch-3.17
2017-02-09
17:12
Cleanup the usage of the SQLITE_DISABLE_INTRINSIC compile-time option. Remove the SQLITE_RUNTIME_BYTEORDER compile-time option. Use -DSQLITE_BYTEORDER=0 instead. Fix a bug in R-Tree that occurs when compiling on a known little-endian machine without the use of intrinsic byteswapping functions. check-in: 798fb9d7 user: drh tags: trunk
2017-02-08
19:12
Avoid preparing a SELECT statement each time an UPDATE or DELETE by docid is executed against an fts3 table. check-in: 1afec575 user: dan tags: trunk
19:10
Avoid preparing a SELECT statement each time an UPDATE or DELETE by docid is executed against an fts3 table. Leaf check-in: 9962c10a user: dan tags: fts3-seekstmt-cache
18:13
Typo fixes in comment. No changes to code. check-in: c09dd5c0 user: mistachkin tags: trunk
16:55
Merge the 3.17.0beta changes from trunk. check-in: 92dbd875 user: drh tags: apple-osx
16:01
Always invoke the xRoundup() method of the memory allocator before calling xMalloc(). check-in: 77b470b0 user: drh tags: trunk
12:18
Round up the size of all memory allocations to a multiple of 8 bytes when using the system memory allocator. check-in: c46e06fa user: drh tags: trunk
2017-02-07
21:44
When generating the hash on the sqlite_master table in dbselftest, use an ORDER BY clause, since the sqlite_master table is reordered by VACUUM. check-in: c8bfd99b user: drh tags: trunk
21:09
MSVC makefile enhancments for several command line tools and the session extensions. check-in: fc1dfe87 user: mistachkin tags: trunk
21:00
Fix harmless compiler warnings in dbfuzz. check-in: 61242267 user: drh tags: trunk
20:57
Fix harmless compiler warnings in kvtest.c check-in: db6b3993 user: drh tags: trunk
20:51
The dbselftest utility now generates hashes in the selftest table with --init. It also accepts multiple database files on the command-line. check-in: e68829c9 user: drh tags: trunk
19:36
Omit fts5fault1.test from the inmemory_journal permutation. check-in: cb1e83f9 user: dan tags: trunk
19:23
Update a test parameter in malloc5.test to account for the increase in default lookaside buffer size. check-in: be82d5ae user: dan tags: trunk
17:36
Add the initial version of the "dbselftest" utility program. check-in: 1fcac836 user: drh tags: trunk
16:15
Update an error message in corruptC.test. check-in: 722e57fe user: dan tags: trunk
14:45
Fix a build problem affecting non-amalgamation rtree builds. check-in: bb7f445b user: dan tags: trunk
14:22
Fix a test case to account for the fact that sqlite3_blob_reopen() now returns SQLITE_IOERR_NOMEM instead of SQLITE_NOMEM if an OOM occurs in the VFS layer. check-in: e11cc523 user: dan tags: trunk
13:51
Fix SQLITE_BYTEORDER #defines in R-Tree when compiled separately from the amalgamation. check-in: a136609c user: drh tags: trunk
12:58
Make the cellMargin() routine of R-Tree slightly smaller and faster while also fixing a harmless compiler warning. check-in: 07fe6228 user: drh tags: trunk
03:44
Back out [ec8ff892ac] which is causing missed OOM errors on some tests. check-in: 0611770d user: drh tags: trunk
00:55
Fix a minor typo in a comment in R-Tree. No changes to code. check-in: f77ee9e9 user: drh tags: trunk
2017-02-06
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
2017-02-04
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
2017-02-03
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
2017-02-02
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
2017-02-01
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
2017-01-31
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
2017-01-30
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
2017-01-28
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
2017-01-27
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
2017-01-26
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
2017-01-25
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
2017-01-23
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
2017-01-22
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
2017-01-21
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
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
14:11
Remove an unnecessary sqlite3_bind_int64() call from sqlite3_blob_open(). Also other minor refactoring of the sqlite3_blob implementation. check-in: 9d197a53 user: drh tags: trunk
2017-01-20
20:43
Minor performance optimization and size reduction to the accessPayload() routine in btree.c. check-in: 264e5c10 user: drh tags: trunk
16:47
Fix a typo in the help message for kvtest. check-in: 8971d98f user: dan tags: trunk
16:46
Add option "--stats" to test program kvtest. Specifying --stats causes kvtest to output information similar to the shell tool option of the same name. check-in: 90291327 user: dan tags: trunk
16:09
Get the "--testset rtree" option working on speedtest1. Add the --rtree, --lookaside, and --clang options to the speed-check.sh script. check-in: 87b640c8 user: drh tags: trunk
00:40
Minor performance optimizations to sqlite3_blob_open() and sqlite3_blob_reopen(). check-in: 52a61967 user: drh tags: trunk
2017-01-19
21:20
If compiled with SQLITE_INLINE_MEMCPY, all memcpy() calls are replaced with in-line code. With that change, cachegrind shows which memcpy() calls are taking the most time. This is a performance-measurement hack only and is not for production use. check-in: 9ed38521 user: drh tags: trunk
18:20
In the 'vtshim' extension, avoid accessing freed memory when handling errors from xCreate/xConnect. check-in: ffd559af user: mistachkin tags: trunk
2017-01-18
22:47
In the 'windirent' test module, use a macro for the hidden/system attribute checking. check-in: a84a08d0 user: mistachkin tags: trunk
22:19
Remove superfluous option to Tcl 'lsort' in the vtabH test file. check-in: b92cc6e5 user: mistachkin tags: trunk
22:16
Make the vtabH-3.1 test more portable and robust. check-in: d3c91c1f user: mistachkin tags: trunk
22:16
Fix handling of initial hidden and/or system files in the opendir() implementation for Windows. No changes to non-test code. check-in: 26dd42b4 user: mistachkin tags: trunk
2017-01-17
10:41
Fix a problem that could cause a spurious SQLITE_NOMEM error when attempting to resume an RBU operation if the previous client failed right after completing the incremental checkpoint. Also a "cannot vacuum wal db" error that could occur when resuming an RBU vacuum if an error (OOM or IO error) occurs during the incremental checkpoint. check-in: 681d96eb user: dan tags: trunk
00:10
Disable intrinsic functions for Windows using Clang, due to reports of linkage errors. This causes a 0.6% performance reduction. We will want to revisit this change in the future. check-in: 7fd560c6 user: drh tags: trunk
2017-01-16
18:10
Back out check-in [0b3174e0b1364c] and replace it with a better fix for \ticket [91e2e8ba6ff2e2] - a fix that does not cause the problem identified by ticket [7ffd1ca1d2ad4ec]. Add new test cases for both tickets. check-in: 9b64af7b user: drh tags: trunk
16:43
Back out check-in [0b3174e0b1364c] and replace it with a better fix for ticket [91e2e8ba6ff2e2] - a fix that does not cause the problem identified by ticket [7ffd1ca1d2ad4ec]. Closed-Leaf check-in: 06136652 user: drh tags: automatic-index-affinity
16:01
Add test cases for tickets [91e2e8ba6ff2e2] and [7ffd1ca1d2ad4ec]. check-in: 9d0dfe0b user: drh tags: automatic-index-affinity
2017-01-13
18:24
Fix a problem preventing resumption of RBU operations after recovering from a process or system failure that occurs during the incremental-checkpoint phase. check-in: 97914266 user: dan tags: trunk
12:53
Fix the build for SQLITE_ENABLE_MEMORY_MANAGEMENT. check-in: 8c85b8fd user: drh tags: trunk
2017-01-12
19:10
Remove a branch that is probably unreachable, and which adds no value. check-in: 9acc7238 user: drh tags: trunk
16:21
Fix harmless compiler warnings in the UPDATE code generator. check-in: 385db266 user: drh tags: trunk
16:14
Remove an unnecessary corruption test from the btree balancer. If corruption is present, it will be found harmlessly by later tests. check-in: bddf3956 user: drh tags: trunk
15:11
Improved detection of cells that extend into the reserved space at the end of the page while adjusting overflow page pointers during autovacuum. check-in: 8097712c user: drh tags: trunk
11:52
Remove invalid test case from cursorhints2.test check-in: 163cc1b2 user: drh tags: trunk
11:50
Make sure Tcl_AppendResult() always has a NULL-pointer argument at the end. check-in: c07aef6f user: drh tags: trunk
2017-01-11
21:03
Changes to allow some multi-row UPDATE statements to avoid the two-pass approach. check-in: 7ae6104a user: dan tags: trunk
20:10
Fix a problem causing the pre-update hook to be passed an incorrect rowid value in some single-pass multi-row updates. Closed-Leaf check-in: 62257eb5 user: dan tags: onepass-update
19:03
Fix a problem with single-pass multi-row UPDATE statements that invoke REPLACE conflict handling. check-in: 0a2b8e1b user: dan tags: onepass-update
15:42
Fix a problem preventing UPDATE statements that use a range-scan on the PK index of a WITHOUT ROWID table from using a one-pass strategy. check-in: cab86c90 user: dan tags: onepass-update
14:15
In the STAT4 computations, ensure that the aAvgEq values do not go negative. check-in: f58f75b5 user: drh tags: trunk
2017-01-10
20:04
Changes to allow some multi-row UPDATE statements to avoid the two-pass approach. check-in: 46db23cc user: dan tags: onepass-update
17:37
Add a test case for ticket [25e335f802dd]. check-in: e500c15a user: dan tags: trunk
17:33
Throw an error if the ON clause of a LEFT JOIN references tables to the right of the ON clause. Fix for ticket [25e335f802dd]. check-in: c92ecff2 user: drh tags: trunk
16:09
Avoid unnecessary calls to the xRoundup() method of the memory allocator when the soft heap limit is not set. check-in: 4209b89e user: drh tags: trunk
15:08
Fix a potential assertion fault discovered by OSS-Fuzz. check-in: 71c03b59 user: drh tags: trunk
2017-01-09
19:55
Remove a redundant assignment statement. check-in: a5fa0965 user: drh tags: trunk
19:27
Performance optimization and size reduction in the OP_Variable opcode. check-in: 237aa974 user: drh tags: trunk
18:22
Fix typo in a comment. No changes to code. check-in: d38fd229 user: mistachkin tags: trunk
15:44
Modify the OP_RowData opcode so that when P3!=0 it is allowed to hold an ephemeral copy of the content. This avoids unnecessary memcpy() operations in the xfer-optimization and VACUUM. check-in: 6e106acd user: drh tags: trunk
13:43
Add the SQLITE_UINT64_TYPE compile-time option. check-in: a5fe03bc user: drh tags: trunk
2017-01-07
14:47
Improvements to the iIdxNoSeek optimization of sqlite3GenerateRowDelete() so that it is automatically disabled for BEFORE triggers but works in all other cases. check-in: 3178ec4c user: drh tags: trunk
14:26
Critical fix to the previous check-in so that it works when there are BEFORE triggers that move the cursor before the OP_Delete has a chance to be applied. check-in: db2c0960 user: drh tags: trunk
03:26
Avoid an unnecessary btree seek while deleting an index entry due to a conflict on a REPLACE operation. check-in: f0495c51 user: drh tags: trunk
00:56
Avoid duplicate b-tree searches in the duplicate row detector used to implement DISTINCT. check-in: d577dda0 user: drh tags: trunk
2017-01-06
13:49
Ensure that "PRAGMA case_sensitive_like" and "PRAGMA shrink_memory" set the number of output columns to 0 (as they are statements that return no data). check-in: 6696cd18 user: dan tags: trunk
11:55
Improve handling of corrupt data in fts5. check-in: 609ac1c7 user: dan tags: trunk
01:09
Clarify the documentation on sqlite3_column_count(). check-in: 9ea0badd user: drh tags: trunk
00:02
Remove several non-portable tests for the deprecated temp_store_directory PRAGMA. check-in: 28d87789 user: mistachkin tags: trunk
2017-01-05
20:00
Ensure that sqlite3_column_count() returns 0 for the "set" mode of "get/set" PRAGMA statements that do not return a value in that case (e.g. page_size, cache_size, auto_vacuum). check-in: 2f57939a user: dan tags: trunk
19:32
Ensure that sqlite3_column_count() returns 0 for the "set" mode of "get/set" PRAGMA statements that do not return a value in that case (e.g. page_size, cache_size, auto_vacuum). Closed-Leaf check-in: 5c05d8ec user: dan tags: pragma-columncount-fix
17:23
Fix handling the case where a sub-query in a FROM clause is itself a UNION ALL, and one side of that UNION ALL is a query on a view that includes an ORDER BY. Fix for ticket [190c2507]. check-in: 590ca83b user: dan tags: trunk
13:50
Fix problems in trigger and foreign key handling when doing REPLACE on a WITHOUT ROWID table that has no secondary indexes. Fix for ticket [30027b613b4]. check-in: 571f166e user: drh tags: trunk
07:58
Ensure that the sqlite3_value_text() interface returns a buffer that is long enough to hold the complete string plus the zero terminator even when the input is a zeroblob. Fix for a problem detected by OSS-Fuzz. check-in: 2dc7eeb5 user: drh tags: trunk
06:57
Fix some problems with foreign key processing within REPLACE ops on WITHOUT ROWID tables with no triggers or auxiliary indexes. Closed-Leaf check-in: c1220b1a user: dan tags: replace-fix
2017-01-04
22:02
Improved the comment on the block of code the provides the performance optimization originally added by check-in [925840cfdb]. The original check-in omitted condition 4, which was the cause of bug [30027b613b]. check-in: c6506b82 user: drh tags: replace-fix
20:13
Possible fix for [30027b61]. There may still be problems surrounding foreign key processing. check-in: 71ccb1f4 user: dan tags: replace-fix
14:53
Adjust filename creation in test_sqllog.c so that it uses leading zeros on counters, so that files appear in order when sorted lexicographically. check-in: 8d670973 user: drh tags: trunk
13:09
Performance enhancements in the printf implementation. check-in: 82e4001b user: drh tags: trunk
04:18
Factor constant functions out of the inner loop since they are more expensive than the extra OP_Copy needed to move the result into place. check-in: 80ad317f user: drh tags: trunk
04:10
Clean up the implementation of constant function factorization. Closed-Leaf check-in: 2ab997e4 user: drh tags: factor-constant-funcs
01:07
Attempt to factor out constant functions from the interior of table scans, since functions can often be expensive to compute. check-in: 62e9270a user: drh tags: factor-constant-funcs
00:26
Changes to the printf implementation for better performance. Closed-Leaf check-in: acdb8f6f user: drh tags: printf-optimization
2017-01-03
21:57
Use compiler intrinsic functions for signed integer math when overflow detection is needed. check-in: d3ac32a6 user: drh tags: trunk
21:50
Back out the use of __sync_fetch_and_sub() as it does not appear to work. Closed-Leaf check-in: 4c2efd42 user: drh tags: gnu-safe-math
21:03
Fix a typo in a comment. check-in: ae087123 user: drh tags: gnu-safe-math
20:01
Use the CLANG_VERSION macro to control clang-specific features. check-in: f8ebeec2 user: drh tags: gnu-safe-math
18:05
Use the GCC built-in __sync_fetch_and_sub() to make the sqlite3StatusDown() routine atomic, and thereby avoid some mutexing. check-in: f69ce75b user: drh tags: gnu-safe-math
17:33
Make use of the __buildin_OP_overflow() functions from GCC when doing 64-bit signed integer arithmetic. check-in: 82cbebb8 user: drh tags: gnu-safe-math
14:45
Add the experimental affinity() SQL function when SQLITE_DEBUG is defined. check-in: bed0eaa5 user: drh tags: trunk
14:39
Put the affinity() function implementation inside of #ifdef SQLITE_DEBUG. Closed-Leaf check-in: f778f58a user: drh tags: affinity-sql-func
14:30
Merge all the latest changes from trunk. check-in: c27cd8a8 user: drh tags: affinity-sql-func