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75 check-ins using file src/vdbe.c version 5ee15a66

2016-08-10
03:35
Try to make pcache1TruncateUnsafe() run faster for the case where iLimit is very close to iMaxKey. (Leaf check-in: 9ab53605 user: drh tags: debug)
02:54
Remove all timers and other debugging logs except for the one timer on pcache1TruncateUnsafe(). (check-in: 5980e625 user: drh tags: debug)
2016-08-09
11:44
Add another timer on pcache1TruncateUnsafe(). (check-in: 42ce53f6 user: drh tags: debug)
11:23
Add a debug timer to pcache1Truncate(). Change the formatting of some other messages to make them easier to read. (check-in: 7d0af4b5 user: dan tags: debug)
01:21
Refocus the timer on the pager_end_transaction() routine. (check-in: 9d4eb6e4 user: drh tags: debug)
2016-08-04
14:08
Add extra logging calls to this branch. (check-in: 491f1ef3 user: dan tags: debug)
2016-07-30
03:33
A new version of the slow mutex log that uses gettimeofday() instead of trying to access the hardware timer. (check-in: 92b9fead user: drh tags: debug)
2016-07-29
16:32
Turn memory status off by default. (check-in: ea3c7162 user: drh tags: debug)
14:31
Enhance a debugging log message to better identify a mutex. (check-in: e60cb6d8 user: dan tags: debug)
14:23
Use __sync_synchronous(), when available, instead of a mutex when a memory barrier is needed. (check-in: 7d4562e9 user: drh tags: debug)
14:10
Add calls to sqlite3_log() when sqlite3_mutex_enter() takes more than 100,000 CPU cycles. (check-in: 33c7ef7a user: drh tags: debug)
2016-07-16
11:47
Temporarily add extra sqlite3_log() calls to this version to help with debugging a performance problem. (check-in: 613c1cea user: dan tags: debug)
2016-07-14
20:19
Experimental patch restore the slight bias in btree-balancing immediately after the change to reduces the amount of memcpy() work done by balancing. (Leaf check-in: 46bd9533 user: drh tags: btree-balance-bias)
2014-11-21
11:22
Changes to comments in sqlite3ota.h. (check-in: 14139542 user: dan tags: ota-update)
10:46
Add support for updating virtual tables via ota. (check-in: 4dfcfe54 user: dan tags: ota-update)
2014-11-20
19:19
Add the "ota_delta()" feature for delta-compressed updates. (check-in: c64dcd17 user: dan tags: ota-update)
17:37
Update the ota extension so that it can be used to update tables with external PRIMARY KEY indexes. (check-in: 55066a11 user: dan tags: ota-update)
15:11
Updates to support zipvfs in pass-through mode. (check-in: 556c3de5 user: dan tags: ota-update)
2014-11-17
18:35
Add tests for WITHOUT ROWID tables with composite primary keys. (check-in: 712d413d user: dan tags: ota-update)
17:57
Changes so that sqlite3_ckpt_open() works with zipvfs databases. (check-in: acbed338 user: dan tags: ota-update)
15:07
Fix a problem with the parameters to an OP_Affinity in one of the VM programs generated by sqlite3_index_writer() that was causing an OOB read. (check-in: 447b33b3 user: dan tags: ota-update)
2014-10-29
01:07
Call fsync() right after ftruncate() when in journal_mode=TRUNCATE and when synchronous=FULL in order to ensure that transactions are durable across a power loss that happens moments after the commit. Proposed fix for https://bugzilla.mozilla.org/show_bug.cgi?id=1072773. This is a cherrypick of [3e922208b68563489]. (check-in: a8f9bd1e user: drh tags: branch-3.8.7)
2014-10-28
16:50
Fix a crash that could occur if the WHERE clause of an UPDATE statement on a view that does not feature a column named "rowid" contains a term such as "rowid=?". (check-in: 8523670d user: dan tags: trunk)
16:19
Fix a faulty assert() in the DELETE code generator. (check-in: 95f8ebdb user: drh tags: trunk)
15:58
Trivial simplification to the automatic index logic. (check-in: 23073a05 user: drh tags: trunk)
12:35
Bump the version number to 3.8.8 (check-in: 1a7e711e user: drh tags: trunk)
00:56
Correct the documentation on the maximum size of a scratch allocation. (check-in: 30f86eb3 user: drh tags: trunk)
2014-10-27
22:06
Add special handling for static mutexes in sqlite3_mutex_alloc() when automatic calls to sqlite3_initialize() are enabled. (check-in: 7857d27c user: mistachkin tags: trunk)
20:14
Remove a small amount of unnecessary #ifdeffery from random.c. (check-in: 2b9340c8 user: drh tags: trunk)
19:58
Fix compilation issue with MSVC due to a misplaced variable declaration. (check-in: 9588b345 user: mistachkin tags: trunk)
19:42
Fix harmless compiler warning in an assert statement. (check-in: d33a1ff3 user: mistachkin tags: trunk)
19:39
Fix a typo in the macro name of an #ifdef (check-in: 9646a136 user: drh tags: trunk)
18:34
Add the SQLITE_ENABLE_API_ARMOR compile-time option for extra API parameter validation. Enhance sqlite3_stricmp(), sqlite3_strnicmp(), and sqlite3_uri_parameter() for improved NULL parameter handling. (check-in: ffb9d814 user: drh tags: trunk)
18:21
Fix an unused variable in btree.c:allocateSpace(). (check-in: 63724616 user: drh tags: trunk)
14:26
Optimizations aimed at reducing the number of memcpy() operations required by balance_nonroot(). (check-in: face33be user: dan tags: trunk)
11:25
Add test file e_wal.test. (check-in: fc6920b5 user: dan tags: trunk)
08:02
If a free-slot is found within a page, but using that free-slot would fragment the page further and there are already at least 60 fragmented bytes, degragment the page. This matches the behaviour of the trunk. (Closed-Leaf check-in: 1f80f8c1 user: dan tags: defrag-opt)
07:01
Merge trunk with this branch. (check-in: a13df301 user: dan tags: defrag-opt)
2014-10-25
20:36
Further modifications to new code to better handle corrupt databases. (check-in: 1a8cf0a0 user: dan tags: defrag-opt)
13:42
Increase the resolution of the second parameter to the likelihood() SQL function (the probability value) so that it can handle probabilities as small as 0.00000001. Formerly, it ran out of precision at 0.001. (check-in: 0f08924f user: drh tags: trunk)
12:28
Do not use virtual (and hence redundant) WHERE-clause terms to restrict the content of a automatic partial index. Show when an automatic partial index is used in the EXPLAIN QUERY PLAN output. (check-in: b9ad601e user: drh tags: trunk)
2014-10-24
20:57
Ensure that the "Any prior cache entry associated with newKey is guaranteed not to be pinned" guarantee made to xRekey implementations is not violated. (check-in: ecc3544e user: dan tags: defrag-opt)
19:28
Enhance the automatic index logic so that it creates a partial index when doing so gives the same answer for less work. UPDATE: This change introduced a bug described by ticket [2326c258d02ead33]. (check-in: d95d0313 user: drh tags: trunk)
18:43
Fix some issues in the new code on this branch related to the handling of corrupt databases. (check-in: 19736dd9 user: dan tags: defrag-opt)
16:40
Fix some minor formatting and code organization issues. (check-in: eab8706d user: dan tags: defrag-opt)
15:26
Honor a high likelihood() on range constraints. (check-in: 401235ed user: drh tags: trunk)
14:32
Get the likelihood() functions working on operators like BETWEEN that create virtual terms in the WHERE-clause analysis. (check-in: 03d0498d user: drh tags: trunk)
12:37
Fix two problems. Tests now passing. (Closed-Leaf check-in: 1c220b80 user: drh tags: api-armor)
00:35
Add the SQLITE_ENABLE_API_ARMOR compile-time option. This is a work in progress and is not yet completely functional. (check-in: c297a84b user: drh tags: api-armor)
2014-10-23
01:01
Implement sqlite3_create_collation() by invoking sqlite3_create_collation_v2() with a NULL destructor argument. This saves a little space. (check-in: 9762ad06 user: drh tags: trunk)
2014-10-22
20:07
Disable the use of strchrnul() unless specifically enabled by compile-time options. (check-in: e580470d user: drh tags: trunk)
19:57
Change the 0x800 bit of SQLITE_TESTCTRL_OPTIMIZATIONS so that it disables the loading of STAT3 and STAT4 content, not just the using of that content. Change the internal name of that bit to SQLITE_Stat34. (check-in: ca3b00c4 user: drh tags: trunk)
18:42
Merge latest trunk with this branch. (check-in: 854a54c6 user: dan tags: defrag-opt)
16:25
The _beginthreadex() / _endthreadex() functions should only be used when compiling with MSVC. (Closed-Leaf check-in: 1a5a5da3 user: mistachkin tags: msvcThreads)
15:33
Add tests to check error handling in OTA. (check-in: ec7321ae user: dan tags: ota-update)
15:27
Take steps to avoid misestimating range query costs based on STAT4 data due to the roundoff error of converting from integers to LogEst and back to integers. (check-in: 3c933bf9 user: drh tags: trunk)
11:30
Sync the database file in sqlite3_ckpt_close(), even if the checkpoint has not finished. (check-in: e2729d62 user: dan tags: ota-update)
2014-10-21
21:56
Call fsync() right after ftruncate() when in journal_mode=TRUNCATE and when synchronous=FULL in order to ensure that transactions are durable across a power loss that happens moments after the commit. Proposed fix for https://bugzilla.mozilla.org/show_bug.cgi?id=1072773. (check-in: 3e922208 user: drh tags: trunk)
19:35
Test that sqlite3ota_open() works with URI paths. Fix some other issues. (check-in: 6fd09854 user: dan tags: ota-update)
18:16
Further tuning of the cost estimates for skip-scan loops, especially for cases when skip-scan loops are in competition with regular loops. (check-in: a27861c2 user: drh tags: trunk)
18:09
Add tests for another application writing the database while an ota update is ongoing. (check-in: 2402baa0 user: dan tags: ota-update)
16:01
Add WHERETRACE debugging output to the whereLoopAdjustCost() routine. (check-in: ec1e942f user: drh tags: trunk)
01:05
If a skip-scan is a proper subset of some other scan, then adjust the cost of the skip-scan upward so that it is more costly than the other scan. Such a cost imbalance can arise under STAT4 because of difficulties in getting an accurate estimate for skip-scans. (check-in: f4b22a26 user: drh tags: trunk)
2014-10-20
16:34
Merge version-3.8.7 changes with this branch. (check-in: d380a648 user: dan tags: ota-update)
2014-10-17
21:35
Fix a (probably harmless) bug in the CSV output mode of the command-line shell. (check-in: 19fe4a0a user: drh tags: trunk)
11:24
Version 3.8.7 (check-in: e4ab094f user: drh tags: trunk, release, version-3.8.7)
2014-10-16
21:39
Work around MSVC not being able to deduce that a local variable was initialized in a called function. (check-in: 06c576c1 user: mistachkin tags: trunk)
18:34
Changes to work around Win32 and MSVCRT APIs that are not present on Windows CE 200x. (check-in: 1418c006 user: mistachkin tags: trunk)
11:45
Update the vdbe-compress.tcl script to account for expressions of the form (123>var), where "var" should be replaced with a reference to a union member. (check-in: 640345d8 user: dan tags: trunk)
2014-10-15
15:28
Update releasetest.tcl so that x86-64 runs a superset of the x86 tests. (check-in: 3c1e70f4 user: dan tags: trunk)
14:45
Fix a problem causing lock5.test to fail in mmap-mode. (check-in: b3e7b446 user: dan tags: trunk)
11:55
Add a four-byte prefix to the BtShared.pTmpSpace buffer to avoid reading before the beginning of an allocation. (check-in: 9386bfca user: drh tags: trunk)
11:31
Rearrange an expression in vdbemem.c to avoid a (harmless) reference to a possibly unitialized variable. (check-in: 4a7b3fa0 user: dan tags: trunk)
2014-10-14
20:25
Make sure new sqlite3_vtab objects created by the xCreate() virtual table method are initialized by the system, in accordance with the documentation. (check-in: eab82330 user: drh tags: trunk)
2014-10-13
23:39
Optimize a database corruption test inside of the OP_Column opcode. (check-in: 005e5b38 user: drh tags: trunk)