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100 check-ins occurring around df52e89fff54dbb6.

2018-04-12
13:15
Add the Upsert object for holding upsert clause information. (check-in: d83eaed5 user: drh tags: upsert)
12:25
Merge changes from trunk. (check-in: 9f6f1180 user: drh tags: upsert)
2018-04-11
17:10
Help the parser run faster by avoiding the "explain ::= ." production. (check-in: d7ec7b59 user: drh tags: trunk)
16:04
Prohibit bound parameters in the arguments to table-valued functions within a trigger. Problem discovered by OSSFuzz. (check-in: b7178209 user: drh tags: trunk)
14:11
Minor simplification to internal function generateSortTail(). (check-in: f32cdb41 user: dan tags: trunk)
2018-04-10
18:56
Include the 'sqlite3rebaser_' APIs in the Windows '.def' file. (check-in: 56e4965f user: mistachkin tags: trunk)
18:05
Merge all version 3.23.1 changes and enhancements from trunk. (check-in: e20fcb51 user: drh tags: apple-osx)
17:39
Version 3.23.1 (check-in: 4bb22940 user: drh tags: trunk, release, version-3.23.1)
15:31
Fix a problem causing the LEFT JOIN strength reduction optimization to be incorrectly applied in some cases where the WHERE clause of the query contains a filter expression of the form "lhs.x IS NOT ?". (check-in: 1fdaf2c3 user: dan tags: trunk)
14:29
When testing, avoid injecting an OOM fault into a file-control call made by SQLite on an unopened file-descriptor. (check-in: 9c1a5eba user: dan tags: trunk)
12:33
Increase the version number to 3.23.1. (check-in: 9488c87b user: drh tags: trunk)
12:10
Fix a problem causing the LEFT JOIN strength reduction optimization to be incorrectly applied in some cases where the WHERE clause of the query contains a filter expression of the form NOT(x AND y). Ticket [1e39b966]. (check-in: 38d319c1 user: dan tags: trunk)
10:37
Remove an unnecessary SQLITE_UNTESTABLE compile-time conditional from the command-line shell. (check-in: 80b75a34 user: drh tags: trunk)
00:53
Update the top-level README.md file to point to the whynotgit.html document. Put it on the correct branch, this time. (check-in: a52e3cdd user: drh tags: trunk)
00:30
Update the top-level README.md file to point to the whynotget.html document. (check-in: 7dfd4543 user: drh tags: upsert)
2018-04-09
20:36
Minor changes to the input grammar resulting in a faster and slightly smaller parser. (check-in: a2c443c0 user: drh tags: trunk)
15:57
Enhance the query planner so that it detects when the xBestIndex method of a virtual table gives out-of-sequence argvIndex values and reports an error. Secondary fix for ticket [2b8aed9f7c9e6]. (check-in: 9506ec14 user: drh tags: trunk)
14:26
Fix the fts5 xBestIndex method so that it is not confused by "IS", "!=", "REGEXP", "GLOB" or "LIKE" operators. Fix for ticket [2b8aed9f]. (check-in: a0ca4ddb user: dan tags: trunk)
13:58
Improvements to ".wheretrace" output. (check-in: ea2e5b34 user: drh tags: trunk)
11:43
Add a "flags" parameter to experimental API sqlite3changeset_apply_v2(). Also add the SQLITE_CHANGESETAPPLY_NOSAVEPOINT flag. (check-in: 3d29631f user: dan tags: trunk)
00:46
Fix a (harmless) signed integer overflow warning. (check-in: 43c2c60c user: drh tags: trunk)
2018-04-07
15:04
More complete parsing of UPSERT, including UPSERT within a trigger. The sqlite3Insert() logic to actually perform the UPSERT is not yet implemented, however. (check-in: 5cc2a5a3 user: drh tags: upsert)
2018-04-06
19:36
Demonstration of how the parser can be augmented to recognize a PostgreSQL-style UPSERT. This check-in implements parsing only. (check-in: 9b22905b user: drh tags: upsert)
19:12
Enhance LEMON to show precendence of symbols and all rules in the report that is generated in parallel to the parser. (check-in: 602fbd81 user: drh tags: trunk)
16:22
Fix a problem in the sessions module causing sqlite3session_apply_strm() to allocate enough memory for the entire input buffer - which defeats the point of a streaming interface. (check-in: 7594e609 user: dan tags: trunk)
2018-04-05
16:26
Fix an instance where an uninitialized VM register might be accessed. Fix for [093420fc0]. This problem was found by OSSFuzz. (check-in: a3b02db7 user: dan tags: trunk)
12:02
Fix the sqlite3WhereTrace mechanism so that it compiles with the --disable-amalgamation and the --enable-debug options to ./configure using clang. (check-in: 81322436 user: drh tags: trunk)
2018-04-04
12:21
Fix segfault in 'eval.c' extension when used with 'empty_result_callbacks'. (check-in: e8b87bd4 user: mistachkin tags: trunk)
2018-04-03
20:44
Fix an error message in speedtest1.c and make the "trigger" testset sensitive to the --size parameter. (check-in: 5a6fd9e0 user: drh tags: trunk)
20:00
Update speedtest1.c with new testset "trigger" based on the tests in speed4p.test. (check-in: 7b7fa5fa user: dan tags: trunk)
17:05
Fix a few small test script issues affecting SQLITE_TEMP_STORE=3 builds. (check-in: e171f372 user: dan tags: trunk)
14:25
Fix the generate_series virtual table so that it correctly returns no rows if any of its constraints are NULL. Ticket [fac496b61722daf28]. (check-in: 3328e828 user: drh tags: trunk)
14:04
Change the LEFT JOIN strength reduction optimization so that assumes that virtual table constraints can be true even if terms within the constraint are NULL. This works around dodgy virtual table implementations. Fix for ticket [fac496b61722daf2]. (check-in: cbb977fe user: drh tags: trunk)
2018-04-02
11:04
Version 3.23.0 (check-in: 736b53f5 user: drh tags: trunk, release, version-3.23.0)
00:16
Better solution to the LIKE problem from the previous check-in that works even if the SQLITE_LIKE_DOESNT_MATCH_BLOBS compile-time option is used. (check-in: b850dd15 user: drh tags: trunk)
2018-03-31
23:28
Fix a logic error discovered by OSSFuzz that can cause an assert() fault if a LIKE operator is used on an INTEGER PRIMARY KEY. (check-in: fc06ddd4 user: drh tags: trunk)
18:43
Fix an error in README-server-edition.html. (Leaf check-in: 754ad35c user: dan tags: server-process-edition)
16:31
Fix an assertion failure triggered by a SELECT with a compound sub-query that contains an incorrectly placed ORDER BY clause. This problem is just an assert() failure - non-DEBUG builds are not affected. Problem found by OSSFuzz. (check-in: 823779d3 user: dan tags: trunk)
2018-03-30
20:42
Update and add further detail to README-server-edition.html. (check-in: 337a0b67 user: dan tags: server-process-edition)
16:34
Fix a bug in the spellfix extension causing it to compute suboptimal answers. The problem was introduced by check-in [afd6fbc01052ccfc9]. (check-in: 3bf28fd9 user: drh tags: trunk)
15:59
Fix an off-by-one error in the dist3 algorithm of the spellfix extension. (check-in: 5c34af7b user: drh tags: trunk)
2018-03-29
16:54
Another change to test file zipfile.test to help it run on systems without "unzip". (check-in: b6252feb user: dan tags: trunk)
16:39
Fix a test script bug causing zipfile.test to fail on systems that do not have the "unzip" program installed. (check-in: d99022a5 user: dan tags: trunk)
13:47
Modify the sqlite3OsFileControl() interface to detect unopened sqlite3_file objects and return SQLITE_NOTFOUND. (check-in: 1fc72b70 user: drh tags: trunk)
11:02
Update memdb1.test so that it works with SQLITE_DEFAULT_AUTOVACUUM builds. (check-in: d67f1c7d user: dan tags: trunk)
2018-03-28
22:08
Fix a harmless compiler warning in the kvtest.exe program. (check-in: d48972cf user: drh tags: trunk)
21:45
Fix a harmless compiler warning. (check-in: f0d12354 user: drh tags: trunk)
20:29
Add -DSQLITE_ENABLE_DESERIALIZE to the "Device-Two" configuration in releasetest.tcl. (check-in: 765a014d user: dan tags: trunk)
15:56
Remove tab characters. No logical changes to code. (check-in: eb29b336 user: drh tags: trunk)
15:41
Update this branch with latest trunk changes. (check-in: df52e89f user: dan tags: server-process-edition)
15:06
Minor comment changes. (check-in: d282f064 user: drh tags: trunk)
2018-03-27
22:58
Fix a typo in the README file for ICU. No code changes. (check-in: 79c4383b user: drh tags: trunk)
15:13
The push-down optimization was being too aggressive such that it sometimes generated incorrect results. Reinstate the restriction (4) (with qualifications) that was removed by check-ins [b5d3dd8cb0b1e4] and [dd568c27b1d765]. (check-in: f08c1731 user: drh tags: trunk)
13:57
Provide the ability for the VFS to do a blocking wait on locks if compiled with SQLITE_ENABLE_SETLK_TIMEOUT. (check-in: e7dff982 user: drh tags: trunk)
2018-03-26
21:05
Do not inject OOM errors on SQLITE_FCNTL_LOCK_TIMEOUT calls as an OOM is not possible in that context. (Closed-Leaf check-in: 5474e560 user: drh tags: lowlevel-lock-timeout)
20:43
Avoid a race condition that might cause a busy_timeout to last longer than it should. (check-in: b8196056 user: drh tags: lowlevel-lock-timeout)
17:56
Fix a typo preventing test script avtrans.test from running in auto-vacuum mode. (check-in: c7473bdb user: dan tags: trunk)
17:40
Add infrastructure to support for using F_SETLKW with a timeout on system that support that functionality. Requires SQLITE_ENABLE_SETLK_TIMEOUT. (check-in: 2e54a743 user: drh tags: lowlevel-lock-timeout)
16:37
Refactor some internal object element names used by the busy handler, to simplify analysis. (check-in: 6c40c557 user: drh tags: trunk)
2018-03-24
23:16
Fix a couple issues in the 'session' module tests. (check-in: ccf734f7 user: mistachkin tags: trunk)
20:06
Fix harmless compiler warning seen with MSVC. (check-in: e9508ab1 user: mistachkin tags: trunk)
18:01
Add testcase() macros and improve comments in the LEFT JOIN strength reduction optimization. (check-in: 56134577 user: drh tags: trunk)
15:47
Yet another fault in the sqlite3ExprImpliesNotNull() routine, causing errors in the LEFT JOIN strength reduction optimization of check-in [dd568c27b1d76563]. (check-in: e88cf3d4 user: drh tags: trunk)
15:08
Fix a test script problem causing shell1.test to fail with -DSQLITE_OMIT_VIRTUAL_TABLE builds. (check-in: 2e06906e user: dan tags: trunk)
13:24
Bug fix in the LEFT JOIN strength reduction optimization of check-in [dd568c27b1d76563]. The sqlite3ExprImpliesNotNull() routine was mistakenly assuming that a CASE expression must always be NULL if contained any reference to a variable that was NULL. (check-in: cf171abe user: drh tags: trunk)
00:19
Prepend linkage macros to the sqlite3rebaser interfaces. (check-in: c64e8f37 user: drh tags: trunk)
2018-03-23
17:36
Fix typos in sqlite3session.h preventing documentation webpages from being generated. Also mark all new sessions functions (those related to rebasing) as experimental. (check-in: de974235 user: dan tags: trunk)
16:31
Fix minor problems with passing NULL pointers to memcmp() and memcpy() found by -fsanitize=undefined. (check-in: 0b06ce6d user: dan tags: trunk)
16:08
Fix the -readonly option on the CLI so that it actually works. (check-in: 0477fb3f user: drh tags: trunk)
14:56
Add some more tests for the IS TRUE / IS FALSE operators. (check-in: 9fe5bebe user: mistachkin tags: trunk)
14:50
Fix typo in a comment used for documentation. No changes to code. (check-in: 49974d3b user: drh tags: trunk)
14:24
Enhance .schema in shell to enable matching patterns with literal underscores. (check-in: 98e3f524 user: mistachkin tags: trunk)
13:18
Fix an error in the CLI in the previous ([0249d9aecf69948]) check-in. Only the pattern to sqlite3_strlike() need to be escaped. (check-in: 71d5f6e6 user: drh tags: trunk)
12:59
Fix the ANALYZE command so that it will process tables whose names begin with "sqlite" as long as they do not being with "sqlite_". (check-in: 0249d9ae user: drh tags: trunk)
00:31
Fix harmless compiler warnings seen with MSVC. (check-in: 2f2be1b1 user: mistachkin tags: trunk)
2018-03-22
20:35
Add APIs to the sessions module for "rebasing" changesets. (check-in: 509506c7 user: dan tags: trunk)
20:11
Remove some unused code from sqlite3rebaser_rebase(). (Closed-Leaf check-in: 07cc955e user: dan tags: sessions-rebase)
19:52
Fix another problem with rebasing updates against multiple remote changes. (check-in: c8e7b5a0 user: dan tags: sessions-rebase)
17:17
Fix an RBU problem causing errors when updating tables with default collation sequences that require quoting (e.g. COLLATE "ICU_root-u-kn-on"). Cherrypick of [eb4f452e]. (check-in: 5dd61e1c user: dan tags: branch-3.22)
17:13
Fix an RBU problem causing errors when updating tables with default collation sequences that require quoting (e.g. COLLATE "ICU_root-u-kn-on"). (check-in: eb4f452e user: dan tags: trunk)
17:02
Fix a test script problem causing rbuvacuum.test to fail when run along with other tests. (check-in: 901cb3b6 user: dan tags: trunk)
14:07
Add tests to ensure that patchsets are handled correctly by the session rebase APIs. (check-in: 0e45baae user: dan tags: sessions-rebase)
12:00
Add the left join strength reduction optimization. Enhance the push-down optimization so that it works with many LEFT JOINs. (check-in: dd568c27 user: drh tags: trunk)
11:28
Add the --valid-sql option to the optfuzz test program. (check-in: a8dfeec7 user: drh tags: trunk)
11:15
Remove some unused code from the sessions module. (check-in: a09518ab user: dan tags: sessions-rebase)
2018-03-21
20:21
Get the optfuzz program working. (check-in: 21346bbc user: drh tags: trunk)
20:13
Merge latest trunk changes into this branch. (check-in: d00b71ec user: dan tags: sessions-rebase)
19:46
Fix some documentation and other issues with the code on this branch. (check-in: a9ec6862 user: dan tags: sessions-rebase)
19:25
Add the optfuzz.c program for verifying the query planner using a fuzzer. This is an initial code check-in. (check-in: 3fb21251 user: drh tags: trunk)
17:29
Fix rebasing of UPDATE changes against a set of remote changesets that feature both OMIT and REPLACE conflict resolution on different fields of the same row. (check-in: d8bc3fdb user: dan tags: sessions-rebase)
01:59
Relax LEFT-JOIN restrictions on the push-down optimization. (Closed-Leaf check-in: b5d3dd8c user: drh tags: join-strength-reduction)
2018-03-20
22:52
Do a more thorough job of cleaning traces of the strength-reduced LEFT JOIN. (check-in: 08833dda user: drh tags: join-strength-reduction)
21:16
If terms of the WHERE clause require that the right table in a LEFT JOIN not be a null row, then simplify the LEFT JOIN into an ordinary JOIN. (check-in: 5b7abecc user: drh tags: join-strength-reduction)
20:27
Add further tests and documentation for the sessions rebase feature. (check-in: 7475a363 user: dan tags: sessions-rebase)
19:02
Fix incorrect testcase labels on two cases in join5.test. No changes to code. (check-in: 4661ac81 user: drh tags: trunk)
18:08
Improvements to the HAVING-to-WHERE optimization. The code uses less space and less CPU, and there is now ".selecttrace" output. (check-in: 5ad668d4 user: drh tags: trunk)
16:56
For 'zipfile', detect attempts to cause a duplicate entry via UPDATE. Also, fix handling of 'UPDATE OR REPLACE' statements run on zipfile virtual tables. Win32 portability fixes to the 'fileio' extension. Miscellaneous test fixes. (check-in: b36caeca user: mistachkin tags: trunk)
14:00
Merge all recent trunk enchancements, and especially the autoincrement write reduction fix. (check-in: 25790049 user: drh tags: begin-concurrent-pnu)
13:54
Remove debugging puts from concurrrent3.test. (check-in: 13b49756 user: drh tags: begin-concurrent)
13:52
Merge all recent enhancements from trunk. (check-in: b0c2f760 user: drh tags: begin-concurrent)