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100 check-ins occurring around 9eefa449792f03c4.

2015-12-10
15:45
Have sqlite3_snapshot_open() avoid a race condition by taking a shared CHECKPOINTER lock while checking pInfo->nBackfillAttempted. (check-in: 8084eae0 user: dan tags: snapshot-get)
15:09
Move pointer range comparisons into a macro, where they can be dealt with in a more portable way. (Closed-Leaf check-in: ad3124c8 user: drh tags: stdint.h)
03:16
Fix spacing typo in comment. No changes to code. (check-in: 3a18526f user: mistachkin tags: snapshot-get)
02:15
Add the nBackfillAttempted field in formerly unused space in WalCkptInfo and use that field to close the race condition on opening a snapshot. (check-in: cb68e9d0 user: drh tags: snapshot-get)
2015-12-09
20:05
Update sqlite3_snapshot_open() to reduce the chances of reading a corrupt snapshot created by a checkpointer process exiting unexpectedly. (check-in: 7315f7cb user: dan tags: snapshot-get)
17:45
Add extra test cases to delete4.test. (check-in: 571b64b9 user: dan tags: onepass-delete-or)
17:23
Further simplifications to the VDBE code generation logic that flow out of the previous check-in. (check-in: 6a5dfe85 user: drh tags: trunk)
16:26
Simplification of the DROP TRIGGER logic using sqlite3NestedParse() instead of hand-coded VDBE code. This is a manual cherry-pick of the key change from check-in [c80bbf14b365d]. (check-in: 8021b4c8 user: drh tags: trunk)
16:08
Fix a problem with the DROP TABLE command on this branch. (check-in: c80bbf14 user: dan tags: onepass-delete-or)
16:04
Merge unrelated fixes from trunk. (check-in: 362615b4 user: drh tags: snapshot-get)
10:06
Add simple tests and bugfixes for DELETE statements that qualify for the OR-optimization. (check-in: 10ca7357 user: dan tags: onepass-delete-or)
08:13
Merge latest trunk with this branch. (check-in: dc236f11 user: dan tags: onepass-delete-or)
2015-12-08
19:50
Experimental optimization for DELETE statements with WHERE clauses that qualify for the OR-optimization. (check-in: d52376df user: dan tags: onepass-delete-or)
16:58
Changes to avoid undefined behavior in memset() and memcpy() and in the comparisons of pointers from different allocations. All problems are found by analysis tools - none have been seen in the wild. (check-in: 901d0b8f user: drh tags: trunk)
16:08
Avoid doing comparisons with pointers that might have been previously been passed to realloc() and/or free(). (check-in: f20396ad user: drh tags: trunk)
14:37
Avoid unnecessary work inside of verifyDbFile() in the unix VFS. (Closed-Leaf check-in: f3c0579e user: drh tags: unix-vfs-optimization)
04:18
Add a test case of the form "WHERE a<2 OR a<3" using PRAGMA count_changes. This test case was failing before the 3.9.0 release. (check-in: 177862c1 user: drh tags: trunk)
00:47
Update the TclKit download URL. (check-in: 07e5199c user: mistachkin tags: trunk)
2015-12-07
23:31
Update MSVC batch build tool to the latest Windows 10 SDK version. (check-in: 2ad50171 user: mistachkin tags: trunk)
21:46
Add the ".changes ON|OFF" command to the sqlite3.exe command-line shell, for testing and verifying the sqlite3_changes() and sqlite3_total_changes() interfaces. (check-in: 9bbe1afc user: drh tags: trunk)
18:18
Fix the openDirectory() routine in the unix VFS so that it works for databases located in the root of the filesystem and for database files that have no pathname at all. (check-in: e7ae120d user: drh tags: trunk)
16:43
Changes to avoid undefined behavior detected by analysis tools - never observed in the wild. Later: This check-in introduces a bug, fixed at [a304e34675404aee]. (check-in: a9e81908 user: drh tags: trunk)
14:33
Add tests for snapshot_get(), _open() and _free(). (check-in: 502cc6f3 user: dan tags: snapshot-get)
2015-12-05
20:51
Add untested implementations of experimental APIs sqlite3_snapshot_get(), _open() and _free(). (check-in: 0715eb00 user: dan tags: snapshot-get)
2015-12-04
13:44
Remove the dependence on "exec ls -U" from the vtabH.test module, as the -U option to "ls" is not universally available. (check-in: 4ecbc75b user: drh tags: trunk)
03:27
Prevent a segfault on Solaris in the test_fs.c due to differences in the definition of the dirent object. (check-in: 042738ad user: drh tags: trunk)
2015-12-03
22:33
Fix typos in requirements text and update requirements marks. No changes to code. (check-in: 8534a46c user: drh tags: trunk)
21:47
Improved OOM recovery in the SELECT code generator logic. (check-in: e6521a43 user: drh tags: trunk)
20:50
Make the SQLITE_ENABLE_8_3_NAMES compile-time option available to sqlite3_compileoption_used(). (check-in: 06338201 user: drh tags: trunk)
20:42
Cleaner code and additional comments on the handling of 8+3 filenames when trying to find the name of a database file based on its journal filename, in the unix VFS. (check-in: 9e489a71 user: drh tags: trunk)
13:43
Make the sqlite3_status64(), sqlite3_strlike(), and sqlite3_db_cacheflush() APIs available to loadable extensions. (check-in: a78e8656 user: drh tags: trunk)
12:01
Fix threadtest3 so that it builds using the autoconf build system. (check-in: d96de532 user: dan tags: trunk)
11:51
Improve concurrency in test_multiplex.c. Add a switch to "threadtest3" allowing it to run using the multiplexor VFS. (check-in: 9d2c62b0 user: dan tags: trunk)
01:48
A unix VFS change replaces fsync() with fstat() when using SQLITE_NO_SYNC, so set PRAGMA synchronous=OFF in the sysfault-3 test to avoid erroneously causing errors in xSync. (check-in: 4f7f3550 user: drh tags: trunk)
2015-12-02
20:53
Merge recent enhancements from trunk. (check-in: 9130661a user: drh tags: begin-concurrent)
20:40
Merge recent enhancements from trunk. (check-in: d1a1278d user: drh tags: sessions)
20:22
Merge all recent trunk enhancements, especially the unix VFS changes. (check-in: e1fb33c7 user: drh tags: apple-osx)
19:46
Remove unreachable branches from the decltype computation logic in the query planner. (check-in: 4f2bcff9 user: drh tags: trunk)
18:59
Have the sqlite3_column_decltype() API report the declared types for the left-most SELECT statement in a compound SELECT. (check-in: 3e1d71fc user: dan tags: trunk)
17:40
Fix an incorrect, though harmless, assert() in the unix VFS. (check-in: 4692ae84 user: drh tags: trunk)
16:10
Remove more (dead) SQLITE_FCNTL_WAL_BLOCK logic from wal.c - code that was missed during the [e1d5320ca08933] check-in. (check-in: 58c15c6a user: drh tags: trunk)
15:44
Remove an unreachable branch from the unixMapfile() routine of the unix VFS. (check-in: b50f67bc user: drh tags: trunk)
13:11
Minor simplifications to the unix VFS. (check-in: 2f13c16b user: drh tags: trunk)
02:33
Change the SQLITE_NO_SYNC compile-time option to call fstat() in place of fsync() rather than being a total no-op. (check-in: f64ea8a0 user: drh tags: trunk)
02:08
Fix a (harmless) off-by-one error in the unix VFS logic that fsync()s a directory after deleting a file. (check-in: 3d02711a user: drh tags: trunk)
01:04
Simplification of the logic used to take the process-wide lock in the unix-excl VFS. (check-in: 73defd52 user: drh tags: trunk)
00:05
Remove all traces of SQLITE_FCNTL_WAL_BLOCK from the unix VFS - that feature had been disabled for a long time and never actually worked. (check-in: e1d5320c user: drh tags: trunk)
2015-12-01
22:09
Simplification to the posix_fallocate() replacement used for the SQLITE_FCNTL_SIZE_HINT file control in the unix VFS. (check-in: 74934d3f user: drh tags: trunk)
21:23
Add the SQLITE_LIKE_DOESNT_MATCH_BLOBS compile-time option. (check-in: 9e1d6d4c user: drh tags: trunk)
17:48
The test_fs.c test module now works on Windows. (check-in: e3d86284 user: drh tags: trunk)
16:21
Simplification to the read and write primatives in the unix VFS. (check-in: 9eefa449 user: drh tags: trunk)
2015-11-30
23:29
Add experimental support for the 'test_fs' test module on Win32. (Closed-Leaf check-in: f3ffb3ae user: mistachkin tags: testFsWin32)
22:52
Add the SQLITE_PRINTF_PRECISION_LIMIT compile-time option. (check-in: ecad75d6 user: drh tags: trunk)
22:22
Fix a problem in xFullPathname for the unix VFS. The problem was found by Kostya Serebryany using libFuzzer. (check-in: bb1e2c4d user: drh tags: trunk)
20:36
The EOVERFLOW errors from fstat() is not possible unless SQLite has been compiled with SQLITE_DISABLE_LFS. (check-in: 8cfb7a50 user: drh tags: trunk)
19:16
Add a rule to main.mk to build the schemalint.tcl script into an executable. Similar to the way the sqlite3_analyzer executable is built. (check-in: b8251065 user: dan tags: schemalint)
19:15
Fix the threadtest3 test program so that it works with VFSes that omit the xCurrentTime() method and supply only xCurrentTimeInt64(). (check-in: 3b155855 user: drh tags: trunk)
18:17
Fix the schemalint.tcl script to handle identifiers that require quoting. (check-in: 451e0faf user: dan tags: schemalint)
12:01
Add the "colUsed" field to the sqlite3_index_info structure passed to virtual table xBestIndex methods. To indicate the subset of the virtual table columns that may be required by the current scan. (check-in: 47f10b7e user: dan tags: trunk)
00:05
Simplifications to the locking logic in the unix-dotfile VFS. (check-in: 58381352 user: drh tags: trunk)
2015-11-29
21:46
Fix the sqldiff utility program so that it works for schemas that have tables with zero-length column names. (check-in: 64263ccb user: drh tags: trunk)
2015-11-28
21:49
Improvements to temporary file creation logic in the unix VFS. (check-in: d6e177fd user: drh tags: trunk)
18:06
Add the SQLITE_FCNTL_VFS_POINTER file control which obtains a pointer to the top-level VFS in use by a database connection. (check-in: 7c6a809e user: drh tags: trunk)
17:38
Disable testing with SQLITE_USER_AUTHENTICATION as the makefiles are not set up to do that. (check-in: 14bbcdc6 user: drh tags: trunk)
2015-11-26
22:12
The first argument to SQLITE_CONFIG_PAGECACHE, SQLITE_CONFIG_SCRATCH, and SQLITE_CONFIG_HEAP must always be a pointer. (check-in: 5e14cadf user: drh tags: trunk)
19:33
Add the "colUsed" field to the sqlite3_index_info structure passed to virtual table xBestIndex methods. To indicate the subset of the virtual table columns that may be required by the current scan. (Closed-Leaf check-in: 116b2064 user: dan tags: vtab-colused)
15:51
Fix a problem with the userauth extension and no-authentication databases. Run the tests for this extension as part of the Debug-One module in releasetest.tcl. (check-in: 8b156219 user: dan tags: trunk)
10:37
Simplify logic for syncing directories after creating or deleting a file in the unix VFS. (check-in: eb180b4f user: drh tags: trunk)
02:21
Small simplification to the xOpen method in the unix VFS. (check-in: 96e7d638 user: drh tags: trunk)
2015-11-25
23:13
Simplify the temporary filename generator and the time-of-day functions in the unix VFS. (check-in: 6c5621ce user: drh tags: trunk)
18:40
Fix harmless compiler warnings in test_fs.c. Fix typos and clean up the text of the documentation for sqlite3_strglob() and sqlite3_strlike(). (check-in: 697b2053 user: drh tags: trunk)
18:07
Update test_fs.c to include a virtual table that reads a file-system hierarchy. Use it to further test GLOB and LIKE support for virtual tables. (check-in: 6ef6578c user: dan tags: trunk)
18:03
Make the xAccess method of the unix VFS smaller and faster. (check-in: 191aef98 user: drh tags: trunk)
15:15
Remove unused methods from the unix VFS. (check-in: 228bd15b user: drh tags: trunk)
14:00
Simplification of the error code translator in os_unix.c. Code cleanup only. The logic is unchanged. (check-in: 2a20f793 user: drh tags: trunk)
11:56
Fix the fts5 "prefix=" option to match the documentation (space separated list, multiple prefix= options supported). The undocumented comma-separated format (compatible with fts4) still works. (check-in: 11eb8e87 user: dan tags: trunk)
01:57
Enhancement the virtual table interface to support LIKE, GLOB, and REGEXP operators. Also add the sqlite3_strlike() interface, which might be useful as part of the implementation of LIKE on some virtual tables. (check-in: a6bfd469 user: drh tags: trunk)
2015-11-24
21:23
Add the sqlite3_strlike() interface, which might be useful for implementing LIKE operators on virtual tables. (Closed-Leaf check-in: e70ec71d user: drh tags: vtab-like-operator)
18:16
Fix a problem in whereexpr.c causing a crash while processing a user-function taht accepts zero arguments. (check-in: 069e51b1 user: dan tags: vtab-like-operator)
18:04
Fix harmless compiler warnings in the TCL test harness logic. (check-in: 2fba7a96 user: drh tags: vtab-like-operator)
17:44
Merge latest trunk changes with this branch. (check-in: 99222bb3 user: dan tags: vtab-like-operator)
17:39
Add further tests and related fixes for GLOB/REGEXP/LIKE support in virtual tables. (check-in: c5e9fd0d user: dan tags: vtab-like-operator)
16:40
Remove from os_unix.c pointless logic that tries to prevent a recurrence of a warning message that can only occur once. (check-in: 20256177 user: drh tags: trunk)
15:12
Fix a comment typo in the unix VFS. No changes to code. (check-in: 32e13879 user: drh tags: trunk)
15:06
Make the geteuid() system call overloadable using xSetSystemCall() on the unix VFSes. (check-in: 6c2ddea6 user: drh tags: trunk)
03:50
Add a test case for the fix of check-in [19d9f9ce691963310] (check-in: 19a9c07b user: drh tags: trunk)
02:10
Remove an incorrect ALWAYS() macro. Fix for ticket [e5c6268dd807fa8950] - a problem introduced in SQLite 3.9.0 and found by libFuzzer. (check-in: 824ad96f user: drh tags: trunk)
01:17
Add a clarifying comment to the virtual table test module 'test8'. (check-in: e92f97a6 user: mistachkin tags: trunk)
00:49
Do not try to eliminate No-ops at the end of VDBE program as this can cause problems for some DISTINCT handling algorithms, and does not improve performance. This also fixes an assertion fault found by libFuzzer. (check-in: 19d9f9ce user: drh tags: trunk)
2015-11-23
21:09
Add experimental support for LIKE, GLOB and REGEXP to the virtual table interface. (check-in: 277a5b40 user: dan tags: vtab-like-operator)
18:28
In the CREATE INDEX statements output by schemalint.tcl, avoid declaring an explicit collation sequence that is the same as the column's default. (check-in: d3aa067c user: dan tags: schemalint)
17:14
Merge latest trunk changes with this branch. (check-in: 8f1ef090 user: dan tags: schemalint)
17:10
Fix ORDER BY handling in the schemalint.tcl script. Add internal self-tests to the same script. (check-in: b8f277c9 user: dan tags: schemalint)
2015-11-21
19:43
Fix an obscure memory leak found by libfuzzer that may occur under some circumstances if expanding a "*" expression causes a SELECT to return more than 32767 columns. (check-in: 60de5f23 user: dan tags: trunk)
17:53
Add a new OP_BColumn opcode where the cursor is guaranteed to be of type CURTYPE_BTREE and is thus able to skip some checks and run slightly faster. (Leaf check-in: 093e0d10 user: drh tags: btree-column-opcode)
17:27
Fix over-length source code lines. No logic changes. (check-in: 198d191b user: drh tags: trunk)
13:24
Do not allow table-valued function syntax on ordinary tables and views as those objects are not table-valued functions. Fix for ticket [73eba7ba5c7c0fc]. Problem found by libFuzzer. (check-in: ff5716b8 user: drh tags: trunk)
2015-11-20
20:55
Add support for ORDER BY clauses to schemalint.tcl. (check-in: 93bdf70e user: dan tags: schemalint)
19:22
Refactor the VdbeCursor object. It is now slightly smaller and faster and is easier to understand. (check-in: 9b1d174d user: drh tags: trunk)
13:49
Merge all the latest enhancements and fixes from trunk. (check-in: 41c8b8e3 user: drh tags: begin-concurrent)