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60 check-ins using file src/sqlite.h.in version e7165529

2017-01-22
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)
16:21
Fix problems in the previous commit. (Leaf check-in: 74ad80eb user: dan tags: trigger-trace)
15:58
Add extra (somewhat inefficient) trace callbacks for triggers if SQLITE_TRACE_TRIGGER is defined. (check-in: ffda1d1e user: dan tags: trigger-trace)
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)
15:30
A proof-of-concept for running sqlite3_blob_open() without using OP_Column when operating on a pure key/value table. This demo does not include any corrupt database checking. Uses about 3% fewer CPU cycles on a key/value performance test. (Leaf check-in: 4cda3b30 user: drh tags: kv-access-opt-demo)
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
23:12
For Windows 8.x and higher, require the SQLITE_WIN32_WIN8_SECTOR_SIZE compile-time option in order to enable sector size determination. (Leaf check-in: 47beb55c user: mistachkin tags: winSectorSize)
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)
19:36
Improve and update comments. (check-in: 2dc16d34 user: mistachkin tags: winSectorSize)
19:06
Minimize the requested permissions when opening the volume on Windows 7 and Vista. (check-in: 8d429a59 user: mistachkin tags: winSectorSize)
01:11
Add runtime version checking for winSectorSize. (check-in: cb9d1ab3 user: mistachkin tags: winSectorSize)
00:27
When determining sector sizes on Windows 7 and Vista, make sure the target file is on the same volume as corresponding root directory. (check-in: de699ead user: mistachkin tags: winSectorSize)
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)
11:54
An example showing how to improve performance of sqlite3VdbeSerialPut() using the GCC intrinsic function __builtin_bswap64(). (Leaf check-in: e42ed9b4 user: drh tags: builtin-bswap64)
2017-01-13
22:21
Merge updates from trunk. (check-in: 8b42b8e3 user: mistachkin tags: winSectorSize)
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
23:37
Attempt to detect physical sector sizes on Windows Vista and higher. (check-in: 6e388423 user: mistachkin tags: winSectorSize)
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)
15:19
Test case macros to show that the previous check-in is well tested. (Leaf check-in: bd8b977a user: drh tags: extra-testcase-macros)
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)
16:52
Attempt to detect physical sector sizes on Windows 8 and higher. (check-in: 381fd34b user: mistachkin tags: winSectorSize)
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
20:57
Merge latest changes from trunk, and also move the perf-counter into the inner loop of sqlite3BtreeMovetoUnpacked(). (Leaf check-in: ff9eab95 user: drh tags: vdbe-aux-perf)
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)
18:20
Try to move OP_Concat operations outside the inner loop. This turns out to make things very slightly slower, at least in speedtest1.c. (Closed-Leaf check-in: 8a90f691 user: drh tags: failed-optimization)
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)