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60 check-ins using file src/vdbe.c version c7add597

2017-01-25
14:38
Ensure that sqlite3_blob_reopen() correctly handles short rows. Fix for ticket [e6e962d6b0f06f46e]. (check-in: 8cd1a445 user: drh tags: trunk)
13:54
Fix SQLITEINT_H macro usage in two extensions. (check-in: 0803390c user: drh tags: trunk)
04:41
Ensure that sqlite3_blob_reopen() correctly handles short rows. Proposed fix for ticket [e6e962d6b0f06f46e]. Further testing needed. (Closed-Leaf check-in: 57d8dad3 user: drh tags: blob_reopen-fix)
2017-01-23
21:12
Experimental changes to permit a VFS to directly override the initial page size. (Leaf check-in: 64131724 user: mistachkin tags: pagePerSector)
19:11
Document the --mmap option in the --help screen for kvtest. Enhance kvtest so that numeric arguments can have suffixes like "K" or "M". Add kvtest to the unix makefiles. (check-in: 175bda87 user: drh tags: trunk)
18:40
Add the --mmap option to the kvtest utility program. (check-in: 4948f7e6 user: drh tags: trunk)
16:56
Optimization: Try to avoid unnecessary btree searching when repositioning a cursor to the next row. (check-in: ee793d30 user: drh tags: trunk)
15:58
Add the missing SQLITE_API symbol to test_delete.c (it is not added automatically as this file is not part of the amalgamation). (check-in: 7a4f512d user: dan tags: trunk)
07:06
Fix a problem preventing FTS5 from correctly passing the FTS5_TOKENIZE_PREFIX flag to custom tokenizer implementations. (check-in: 03c60134 user: dan tags: trunk)
2017-01-22
16:34
Fix an uninitialized variable in the command-line shell. (check-in: 06b8001a user: drh tags: trunk)
02:04
Fixes to documentation comments in the public header file. (check-in: 772dcb08 user: mistachkin tags: trunk)
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)
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)
12:07
Add a prototype of the sqlite3_kv_reset() interface. (Leaf check-in: 088c5903 user: drh tags: sqlite3_kv)
11:52
Add test cases for the instrumentation on this branch. Fix some OOM handling issues in the same. (Leaf check-in: 50ca94b9 user: dan tags: transaction-pages)
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)
20:14
Add temporary code to record and report on the set of b-tree pages read and written by the current transaction. This is likely still buggy. (check-in: 2a8f6c89 user: dan tags: transaction-pages)
19:54
Begin fleshing out the key/value accessor implementation. This is an incremental check-in. (check-in: 02d60e19 user: drh tags: sqlite3_kv)
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)
17:20
Baseline interface definition for the experimental sqlite3_kv accessor object. (check-in: a435841e user: drh tags: sqlite3_kv)
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
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)
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)
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)