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SQLite training in Houston TX on 2019-11-05 (details)
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100 check-ins occurring around 95cc3f6fdec54945.

2010-06-21
20:19
Fix comment inside the pager_unlock() routine. Always close the master journal file before trying to delete it. check-in: f820b815 user: drh tags: trunk
18:29
Add test cases to pager1.test and pager2.test. check-in: cc9ddae6 user: dan tags: trunk
12:47
Merge the experimental UNDELETABLE_WHEN_OPEN optimization into the trunk. check-in: ee0acef1 user: drh tags: trunk
12:34
Change things so that journal2.test works with ENABLE_ATOMIC_WRITE. Closed-Leaf check-in: a64d96db user: dan tags: experimental
07:45
Add further pager tests. check-in: 4104b175 user: dan tags: experimental
06:00
Merge latest trunk change. check-in: f6d26e07 user: dan tags: experimental
05:40
Fix jrnlmode2.test so that it works on systems where UNDELETABLE_WHEN_OPEN is defined. check-in: 59be370e user: dan tags: experimental
2010-06-19
23:53
Fix an uninitialized variable in os_unix.c. check-in: 822a0283 user: drh tags: trunk
19:06
Fix an assert() failure that could occur if compiling with OMIT_SHARED_CACHE. check-in: 3e76a9f2 user: dan tags: experimental
18:12
Change the name of IOCAP_SAFE_DELETE to IOCAP_UNDELETABLE_WHEN_OPEN. Have the xDeviceCharacteristics() method of the win32 VFS return this flag. check-in: 5a5ff4e3 user: dan tags: experimental
17:26
Add tests to pager1.test and pagerfault.test. check-in: f5df83fd user: dan tags: experimental
15:10
Change the unix VFS to always allocate shared-memory using a file in the same directory as the database. Otherwise, a chroot might cause different processes to use different shared memory files resulting in database corruption. check-in: 2241788b user: drh tags: trunk
11:30
Add tests to pager1.test and pagerfault.test. check-in: 58c0b5bf user: dan tags: experimental
2010-06-18
18:59
Add tests to pager1.test. check-in: 582fca89 user: dan tags: experimental
16:13
Rearrange some code in OP_JournalMode to avoid incorrect returns from subsequent invocations of "PRAGMA journal_mode" following an IO error. check-in: ce0a4a9b user: dan tags: experimental
11:10
Change the implementation of the unix implementation of xAccess() so that it returns 0 (does not exist) to an SQLITE_ACCESS_EXISTS query on a file that exists but is zero bytes in size. check-in: 077b0e5b user: dan tags: experimental
2010-06-17
17:05
Apply [b9b11855e8] (the alternate fix to [fc62af4523]) to the trunk. check-in: 9a949a3a user: dan tags: trunk
16:44
Merge trunk change [7c3a86b9c7]. check-in: bd7bc4e0 user: dan tags: experimental
16:44
A different fix to [fc62af4523]. When changing from journal_mode=PERSIST or TRINCATE to some other rollback mode, delete the journal file only if a RESERVED lock can be obtained on the database file first. check-in: b9b11855 user: dan tags: experimental
16:08
Fix the tkt-fc62af4523.test to work around non-randomness of the randomblob() function when in testing mode. check-in: 7c3a86b9 user: drh tags: trunk
11:36
Fix bug in journal2.test. check-in: c1e04f1d user: dan tags: experimental
10:52
Merge trunk updates with experimental branch. Also add tests to journal2.test. check-in: 9f6ea1de user: dan tags: experimental
10:42
Do not delete the journal file in "PRAGMA journal_mode" commands. This fixes [fc62af4523]. check-in: 1ec74591 user: dan tags: trunk
10:24
Add test case for [fc62af4523]. check-in: cccd32c6 user: dan tags: trunk
06:19
Merge fix [f80c3f922a] with experimental changes. check-in: 20133e9c user: dan tags: experimental
02:13
Bug fix: Only trust the database size number at offset 28 if the change counter at offset 24 matches the version number counter at offset 92. This prevents corruption in the case of two applications writing to the database where one is an older version of SQLite and the other is a newer version. check-in: f80c3f92 user: drh tags: trunk
2010-06-16
19:48
Merge in changes up to and including the 3.6.23.1 release. check-in: 21ca87f6 user: drh tags: apple-osx
19:04
Experimental change: On systems where it is not possible to unlink a file while one or more processes has it open (i.e. not unix), avoid closing the journal file each time the database is unlocked and reopening it at the start of each transaction. check-in: bede8c8a user: dan tags: experimental
12:30
Add extra test cases to pager1.test. check-in: ad320957 user: dan tags: trunk
10:55
Fix a memory leak that can occur in os_unix.c if an IO error occurs within the xUnlock method. check-in: 6c5c04ee user: dan tags: trunk
2010-06-15
19:07
Rationalize a common pattern in tcl test cases into proc do_multiclient_test. check-in: efe44564 user: dan tags: trunk
18:00
Fix a problem introduced into lock2.test by the previous commit. check-in: c1c9f6fa user: dan tags: trunk
17:44
Add test file pager1.test, containing tests of inter-process locking in non-wal mode. check-in: 6e43eed9 user: dan tags: trunk
14:21
Run extra iterations in wal3.test to ensure test coverage. check-in: ea80cbe5 user: dan tags: trunk
14:06
Merge in [2c5e48a485]. Merge in [2c5e48a485]. Merge in [2c5e48a485]. check-in: 03c0f4fd user: dan tags: trunk
13:56
Changes to the way tcl test scripts work. No changes to production code. Closed-Leaf check-in: 2c5e48a4 user: dan tags: experimental
12:09
Minor tweaks to the interface documentation - adding hyperlinks. check-in: 07b2fdd1 user: drh tags: trunk
11:21
Updates to comments and testcase() macros in wal.c. check-in: 4d90cc0b user: drh tags: trunk
2010-06-14
18:06
Fix an error in the walfault.test script introduced by the previous check-in. check-in: a2b9374f user: drh tags: trunk
18:01
Move the xShmMap method to in between xShmLock and xShmBarrier, since it seems to fit in there logically. check-in: 58dfd83d user: drh tags: trunk
17:09
Merge the experimental shared-memory mmap-by-chunk changes into the trunk. check-in: f295e7ed user: drh tags: trunk
16:16
Add the new xShmMap (formerly xShmPage) to os_win.c. check-in: 13e7a824 user: dan tags: experimental
14:07
Remove xShmGet/Size/Release from the sqlite3_vfs structure. Change the name of xShmPage to xShmMap. Remove some code that is now unused from os_unix.c and some of the test VFS implementations. check-in: fc0cabc1 user: dan tags: experimental
11:49
Update some comments in wal.c. No code changes. check-in: 1ce9c92b user: dan tags: experimental
11:18
Change the interface to internal function walGetHash() to make it easier to follow. check-in: 5e8e2e97 user: dan tags: experimental
10:30
Add the xShmPage method to the "crash" vfs in test6.c. check-in: 1008f536 user: dan tags: experimental
07:53
Add some fault-injection tests to improve coverage. check-in: 37b26d12 user: dan tags: experimental
2010-06-12
12:02
Fix some problems with handling IO errors on the experimental branch. check-in: eade8bc2 user: dan tags: experimental
2010-06-11
19:04
Experimental change to the xShmXXX parts of the VFS interface. check-in: ca68472d user: dan tags: experimental
17:01
Refactor and simplify the logic used to change journalmode. check-in: 95cc3f6f user: drh tags: trunk
2010-06-10
16:25
Adding original art for the new SQLite logo. check-in: af353bd8 user: drh tags: trunk
14:07
Add the SQLITE_TESTCTRL_PGHDRSZ verb for sqlite3_test_control() used to get the size of pcache headers for testing purposes. check-in: 5d694f04 user: drh tags: trunk
10:51
Update the test VFS in test_journal.c so that it implements the xCurrentTimeInt64 method. check-in: ec3b4a7e user: drh tags: trunk
06:53
Store the MemPage structure in memory following, instead of preceding, the page data for cached pages. This reduces the likelihood of a corrupt database page image causing SQLite to read past the end of a buffer. check-in: 0ce42e76 user: dan tags: trunk
01:07
Remove a condition that must always be true. Replace it with an assert(). check-in: 7abcd54e user: drh tags: trunk
2010-06-09
19:01
Fix test script problems causing errors in the "inmemory_journal" permutations. check-in: ea05b7f9 user: dan tags: trunk
16:58
When restarting (wrapping) a log file, set all unused aReadMark[] slots to READMARK_NOT_USED instead of 0. Setting them to 0 does not cause a problem, but may cause SQLite to obtain and release a few more file locks than would otherwise be necessary. check-in: 0797b10c user: dan tags: trunk
15:47
Fix for ticket [f973c7ac31]. check-in: 6eb058dd user: dan tags: trunk
14:45
Shift the meaning of aReadMark[] back so that +1 offset from mxFrame is removed. Add the new READMARK_NOT_USED value (0xffffffff) instead of zero to signal an aReadMark[] that is not in use. check-in: c576827d user: drh tags: trunk
11:28
Simpler fix for the race condition also fixed by [7c102c7b5f] check-in: 3c2de820 user: dan tags: trunk
11:02
Fix for race condition in WAL locking code. Closed-Leaf check-in: 7c102c7b user: dan tags: mistake
2010-06-08
15:50
Close database opened by tester.tcl when it is sourced in all.test. Because test scripts are now run in slave interpreters, this connection was not being closed by the first script run as it was previously. check-in: b072e9f6 user: dan tags: trunk
15:16
Changes to wal3.test to support small default cache size settings. And builds that create autovacuum databases by default. check-in: ac4cc257 user: dan tags: trunk
2010-06-07
19:26
In os_unix.c, call munmap() to unmap a shared-memory region prior to closing the associated file descriptor. check-in: 95cc976f user: dan tags: trunk
17:47
Change all.test, quick.test and permutations.test so that they use a separate interpreter for each test file. check-in: 7c33eb5a user: dan tags: trunk
14:28
Refactor some of the global variables and commands used by tester.tcl. check-in: c2edf8e1 user: dan tags: trunk
06:11
Add a couple of extra coverage tests for wal.c. check-in: cfe60254 user: dan tags: trunk
2010-06-05
19:18
Add further test cases for the logic in sqlite3WalBeginReadTransaction(). check-in: a49713db user: dan tags: trunk
18:34
Clarify the purpose of a test for a race-condition in sqlite3WalBeginReadTransaction(). check-in: c041c6a9 user: dan tags: trunk
18:12
Remove a condition from sqlite3WalRead() that is unreachable as of the changes to clear entries out of the wal-index hash tables on transaction or savepoint rollback. check-in: 39420473 user: dan tags: trunk
14:42
Mark a condition in wal.c as ALWAYS(). check-in: 3fe0cc78 user: dan tags: trunk
11:53
Add extra coverage test cases for wal.c. No changes to production code. check-in: f9d4ae0e user: dan tags: trunk
2010-06-04
18:38
Clarify an assert in sqlite3WalExclusiveMode(). check-in: 25585069 user: dan tags: trunk
17:16
Remove an unnecessary branch from wal.c. check-in: 8e54786c user: dan tags: trunk
15:59
Add an English language error message to corresponding to SQLITE_PROTOCOL. "locking protocol". check-in: ca327e32 user: dan tags: trunk
12:22
Add test for the code that detects an inconsistent pair of wal-index headers to wal2.test. check-in: 157feba1 user: dan tags: trunk
11:56
If an attempt to sync the database file as part of a checkpoint fails, do not update the shared "nBackfill" variable. Otherwise, another process could wrap the log and overwrite content before it is synced into the database. check-in: b813233d user: dan tags: trunk
10:37
Fix a problem where an SQLITE_BUSY in the checkpoint code was being treated as an IO error (abandoning, instead of just limiting, the checkpoint). check-in: 02c4040c user: dan tags: trunk
2010-06-03
19:10
Fix another problem in test_vfs.c. check-in: df7d5989 user: dan tags: trunk
18:20
Have test_vfs.c simulate IO errors in xShmLock. check-in: fcbf7cf1 user: dan tags: trunk
18:02
Performance fix for winShmClose(). check-in: ed7774de user: drh tags: trunk
16:58
Add extra tests for removing elements from wal-index hash tables as part of a rollback. check-in: af3e598a user: dan tags: trunk
12:35
Delay opening the sub-journal until SQLite actually needs to write data to it. check-in: c43deb33 user: dan tags: trunk
12:09
Remove global variables when compiled with SQLITE_OMIT_WSD check-in: dd10a547 user: drh tags: trunk
09:25
Enhancements to test_vfs.c and walfault.test. check-in: ac0de2f3 user: dan tags: trunk
09:17
If an error (OOM or SQLITE_FULL error) occurs while executing an SQL statement and a statement-transaction is automatically rolled back as a result, if a second error occurs during the statement rollback do a full transaction rollback instead. Otherwise the client can be left with an inconsistent cache. This can affect both WAL and rollback modes. check-in: eb80ddc6 user: dan tags: trunk
09:01
If a malloc fails while allocating a savepoint object at the pager level, do not try to roll that savepoint back later on. check-in: 91cb08ff user: dan tags: trunk
2010-06-02
20:38
When a lock fails due to an I/O error (not an SQLITE_BUSY) then the checkpoint should fail. check-in: c6eb0a27 user: drh tags: trunk
18:59
Fix a problem with rolling back to a savepoint opened before the writer decided to wrap the log file. check-in: 6b4aed6a user: dan tags: trunk
17:15
If an error occurs while writing frames to the log to commit a transaction, do not mark the pages as clean in the cache. Otherwise, the subsequent rollback does not roll them back (leaving the client to continue with a cache that makes it appear that the transaction was committed - inconsistent with the database on disk). check-in: cb571c1b user: dan tags: trunk
16:40
Added implementation of vfslog_time() for Windows testing. check-in: b3109f85 user: shaneh tags: trunk
16:39
Updated wal2.test for windows testing. check-in: c3606f39 user: shaneh tags: trunk
15:59
Make sure the directory used by os_unix.c for shared-memory files is always the same, regardless of individual client permissions and environment variable settings. check-in: f97bd520 user: drh tags: trunk
15:43
When walTryBeginRead() encounters an I/O error trying to set a lock (as opposed to SQLITE_BUSY) be sure to propagate that error back up the call stack. check-in: aa2c2b67 user: drh tags: trunk
14:45
Changes to make WAL more robust against SHM locking failures and OOM errors. check-in: ebf40413 user: drh tags: trunk
14:43
In the rowhash.test, make sure global variables are cleared prior to use. check-in: 28efe0a4 user: drh tags: trunk
12:58
Undo one of the "const" markers from the previous check-in because the value needs to be changable, even if it is not actually ever changed in the current implementation. check-in: c24ac356 user: drh tags: trunk
05:53
Add some 'const' markers to static data that is really constant. check-in: e7073e23 user: dan tags: trunk
2010-06-01
21:02
The shared-memory used by WAL on linux now really is shared memory in /dev/shm. On other unix flavors, the file is in a temporary directory rather than in the same directory as the database. check-in: fc18c4aa user: drh tags: trunk
19:15
Changes to the way faults are injected into xShmXXX VFS calls. check-in: 716d99f3 user: dan tags: trunk