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100 descendants of [e4d220a3]

2013-12-02
21:25
Another #if SQLITE_VERSION_NUMBER macro in speedtest1.c for compatibility with older versions of SQLite. check-in: bc8eacc7 user: drh tags: trunk
01:24
Still more #if SQLITE_VERSION_NUMBER macros in test/speedtest1.c to enable compilation against older versions of SQLite. check-in: 4b20cf42 user: drh tags: trunk
2013-12-01
18:10
Add some #if SQLITE_VERSION_NUMBER macros to test/speedtest1.c in order to make it compatible with older versions of SQLite so that it can be used for historical speed comparisons. check-in: a9e1627a user: drh tags: trunk
01:18
Fix typos in the header comment on the sqlite3Atoi64() routine. check-in: c85e0c54 user: drh tags: trunk
2013-11-30
12:49
Detect a corrupt UnpackedRecord and return SQLITE_CORRUPT prior to calling sqlite3BtreeMovetoUnpacked(). check-in: 55ec474d user: drh tags: trunk
2013-11-29
15:39
Change the name of the CORRUPTIBLE macro to CORRUPT_DB. check-in: f865be10 user: drh tags: trunk
15:06
Add a new sqlite3_test_control() that indicates that database files are always well-formed. Use this during testing to enable assert() statements that prove conditions that are always true for well-formed databases. check-in: 15e4f63d user: drh tags: trunk
2013-11-28
19:28
Update a few test cases to account for the new error message formats. check-in: 65a5bce3 user: dan tags: trunk
14:14
Remove an assert() condition that may not be true if the database file is corrupt. Update a test case in corruptC.test. check-in: 0bcf7551 user: dan tags: trunk
06:17
Fix a test case in temptrigger.test so that it works in auto-vacuum mode. check-in: c3b7a0e6 user: dan tags: trunk
2013-11-27
21:53
Merge all recent trunk changes. check-in: 3a2a1bd4 user: drh tags: sessions
21:07
Remove unnecessary local variables from sqlite3VdbeExec() in order to reduce stack-space requirements of that routine. check-in: 81891288 user: drh tags: trunk
19:17
Update documentation of sqlite3_column() for clarity. Update evidence marks on test cases. check-in: ec2d47a1 user: drh tags: trunk
18:00
Fix spelling typo in speedtest1.exe. check-in: ae90300e user: mistachkin tags: trunk
14:50
Fix some harmless compiler warnings in speedtest1.exe. check-in: c75f561f user: drh tags: trunk
13:48
Additional test cases for skip-scan. check-in: ce70803f user: drh tags: trunk
13:24
Make sure the colWidth array is correctly initialized in the ".explain" command of the shell. check-in: ceebcdca user: drh tags: trunk
04:22
Lower the threshold for using skip-scan from 50 to 18, based on experiments that show that 18 is the approximate break-even point for a variety of schemas. check-in: 83c0bb99 user: drh tags: trunk
04:00
Avoid using the GetVersionEx functions if they are considered deprecated. check-in: afdca299 user: mistachkin tags: trunk
03:01
Avoid using the GetVersionEx functions if they are considered deprecated. Closed-Leaf check-in: 0ea9e472 user: mistachkin tags: vs2013
01:23
Add additional test cases for skip-scan. check-in: 1ae4915d user: drh tags: trunk
00:45
Add additional test cases and requirements evidence marks for WITHOUT ROWID. check-in: b408d788 user: drh tags: trunk
2013-11-26
23:27
Make sure the update hook is not invoked for WITHOUT ROWID tables, as the documentation specifies. This bug was found while adding requirements marks, so a few extraneous requirements marks are included in this check-in. check-in: 0978bac6 user: drh tags: trunk
22:46
Add requirements test cases for determining when an expression is true and when it is false. check-in: 838654e5 user: drh tags: trunk
21:18
Changing the CAST behavior of REAL values actually changed a documented requirement. So we also have to change the requirement evidence text to match. check-in: d84aa44e user: drh tags: trunk
18:22
Reduce the amount of code used to implement OP_SeekGe and similar. check-in: 8b12a15a user: dan tags: trunk
18:00
Merge in performance enhancements from trunk. check-in: fc9ae839 user: drh tags: sessions
16:51
Fix a possible NULL pointer deference in the wordcount test program. check-in: 6f91dca0 user: drh tags: trunk
16:48
Change tclsqlite3.c so that it never invokes ctype macros with signed character arguments. check-in: c07caabf user: drh tags: trunk
16:20
Do not try to run the atof1.test test script on ARM hardware which lacks the "long double" type. check-in: fafca560 user: drh tags: trunk
15:45
Change the REAL-to-INTEGER casting behavior so that if the REAL value is greater than 9223372036854775807.0 then it is cast to the latest possible integer, 9223372036854775807. This is sensible and the way most platforms work in hardware. The former behavior was that oversize REALs would be cast to the smallest possible integer, -9223372036854775808, which is the way Intel hardware works. check-in: 6f53fc71 user: drh tags: trunk
01:13
Fix comment. check-in: 8364af39 user: mistachkin tags: winHdr
01:00
Further work on Windows header file reform. check-in: 540f5525 user: mistachkin tags: winHdr
00:33
Merge updates from trunk. check-in: c5ab4378 user: mistachkin tags: winHdr
00:28
Better support for UTF-8 paths on Cygwin. check-in: 9954327c user: mistachkin tags: trunk
2013-11-25
23:42
Add SQLITE_CONFIG_WIN32_HEAPSIZE option to configure the maximum isolated heap size on Windows. check-in: 914e6c9d user: mistachkin tags: trunk
22:24
Change a while-loop into a do-loop in sqlite3VdbeRecordCompare() and add an assert() to verify that the do-loop really is appropriate. This gives about a 10% performance boost in that routine, or a 0.9% boost overall. check-in: 011a6be4 user: drh tags: trunk
21:49
Clarify docs for the SQLITE_CONFIG_WIN32_HEAPSIZE option. Closed-Leaf check-in: 51e87607 user: mistachkin tags: winHeapSize
21:41
Remove a NEVER() from a branch that is now reachable during OOM faults. check-in: 18bdcb05 user: drh tags: trunk
20:50
Optimizations to the sqlite3BtreeMovetoUnpacked() routine in storage engine making it about 17.8% faster, which in turn makes SQLite over 1.2% faster overall. check-in: 032e8993 user: drh tags: trunk
20:14
Return an SQLITE_CORRUPT error if the content size field of a table record extends off the end of a page. Closed-Leaf check-in: b48c4e40 user: drh tags: btree-optimization
17:38
Uses shifts rather than division for arithmetic on the cell indices, since those indices are always non-negative. check-in: 5bf2a3fe user: drh tags: btree-optimization
16:52
Optimize the skipping of the payload size field when doing a binary search for a rowid. check-in: 55e5bfa2 user: drh tags: btree-optimization
16:23
Arrange for sqlite3BtreeMovetoUnpacked() to always leave the cursor cell parse cache invalidated. This fixes issues with previous check-ins on this branch and also runs faster. check-in: a7467560 user: drh tags: btree-optimization
15:01
More optimizations to sqlite3BtreeMovetoUnpacked(). But there are failures in TH3. Committing this intermediate state to facilitate bisecting. check-in: f80497be user: drh tags: btree-optimization
14:10
More improvements to sqlite3BtreeMovetoUnpacked() performance. check-in: 88680698 user: drh tags: btree-optimization
09:37
Correct line-endings in the new header file. check-in: 94219b9f user: mistachkin tags: winHdr
09:36
Initial work on isolating usage of the Windows header file. check-in: 0d42c6b8 user: mistachkin tags: winHdr
02:38
Performance improvements in sqlite3BtreeMovetoUnpacked(). check-in: d0fb7ace user: drh tags: btree-optimization
2013-11-24
23:18
Better support for UTF-8 paths on Cygwin. Closed-Leaf check-in: 484162b6 user: mistachkin tags: cygUtf8
01:14
Add the --scratch parameter to speedtest1. Improved error messages when misconfiguring memory parameters in speedtest1. check-in: 8f3c767a user: drh tags: trunk
00:46
The MEMSYS5 algorithm does not have to return the block with the lowest address. Any block of the appropriate size will do. Use the first block found on the freelist for the appropriate size for a performance improvement. check-in: 12e612e8 user: drh tags: trunk
2013-11-23
22:45
A much simpler fix is to simply change MEMSYS5 so that it takes any free block of the appropriate size (the first on the list of free blocks) rather than searching for the one with the smallest address. This is also faster than using the min-heap algorithm. Need to research to verify that the allocator still satisfies the Robson proof, however. Closed-Leaf check-in: 8191b512 user: drh tags: memsys5-performance
21:30
Use a heap-based primary queue rather than a linked list to store the available free blocks of each size in MEMSYS5, since this provides faster access to the first available block. Closed-Leaf check-in: 7d2cdfad user: drh tags: memsys5-performance
21:29
Add newlines at the end of some error messages in speedtest1. check-in: 6b98f0af user: drh tags: trunk
11:45
Report errors from sqlite3_exec() and sqlite3_config() in speedtest1. Fix a bug in the main testing logic that was found by these error reports. check-in: 659f1a98 user: drh tags: trunk
04:32
Fix the order of parameters to SQLITE_CONFIG_PAGECACHE in the speedtest1.exe program. check-in: dbe85ef6 user: drh tags: trunk
04:22
Adjust MSVC makefile to avoid using forward slashes in file names. check-in: facf6dea user: mistachkin tags: trunk
04:16
Add the "speedtest1.exe" test program. check-in: fb6f0c6d user: drh tags: trunk
00:27
Add experimental sqlite3_config option to control the native Win32 heap size. check-in: f09f11e9 user: mistachkin tags: winHeapSize
2013-11-22
21:32
Fix harmless compiler warning. check-in: f336c18f user: mistachkin tags: trunk
00:49
Minor correction to the batch build tool for MSVC. check-in: 22144c9d user: mistachkin tags: trunk
2013-11-21
23:37
Fix a harmless clang warning in the command-line shell. check-in: 3d47a556 user: drh tags: trunk
22:02
Slight change to the --timer output on wordcount for better display on windows: Avoid showing the full pathname of the executable. check-in: b9e047b9 user: drh tags: trunk
21:59
Changes some offset and amount parameters from "int" to "u32" to avoid harmless signed/unsigned comparison warnings. check-in: 4e8c5d07 user: drh tags: trunk
21:40
Modify wordcount so that timer information appears on standard error instead of standard output. Rename the run-wordcount.bash script to run-wordcount.sh and simplify it so that it stands a better chance of running on non-GNU systems. check-in: 586c11ed user: drh tags: trunk
21:23
Do not reuse factored constants that might have had their encodings changed. check-in: 487f2036 user: drh tags: trunk
20:48
Fix the code generator to honor turning off constant expression factoring. check-in: 88262266 user: drh tags: trunk
19:27
Add the --timer option to the wordcount test program. check-in: a89fdf87 user: drh tags: trunk
19:05
Remove a test from sqlite3VdbeMemFromBtree() which was unnecessary, and after the recent OP_Column refactoring, unreachable. check-in: 23667f3b user: drh tags: trunk
17:24
Make sure the OP_Next and OP_NextIfOpen opcodes are numbered close together for efficiency in switch() statements. OP_Prev and OP_PrevIfOpen too. check-in: d4ccf0f5 user: drh tags: trunk
16:08
When one or more arguments to a function are constants, try to factor out just those arguments into initialization code. check-in: 50d350ab user: drh tags: trunk
14:44
Remove the obsolete TK_CONST_FUNC token type. check-in: 9b4217f0 user: drh tags: trunk
14:33
Add the ability to factor constant functions out of inner loops. But do not factor out non-constant functions, like random(). check-in: 1b0f779e user: drh tags: trunk
04:18
Another improvement to OP_Function and an improvement to OP_Move. check-in: 70b056fb user: drh tags: trunk
03:43
A simple change to the OP_Function opcode improves overall performance by about 0.5%. check-in: b890eefd user: drh tags: trunk
03:12
Performance optimization to the OP_Next and OP_Prev opcodes. check-in: ecaac28a user: drh tags: trunk
01:33
Refactor the OP_Column opcode to make it clearer and easier to maintain. Overall, performance tests show about a 1% speed increase with this change. check-in: 972881c6 user: drh tags: trunk
01:04
Reduce the size of VdbeCursor again, this time without a performance hit. Closed-Leaf check-in: 93393993 user: drh tags: OP_Column-refactor
00:10
Unpack some fields, adding some space back to the VdbeCursor object, in order to help the code to run a little faster. check-in: f8d5efcd user: drh tags: OP_Column-refactor
2013-11-20
21:51
Reduce the size of the VdbeCursor object from 144 to 120 bytes. check-in: 5f9d5068 user: drh tags: OP_Column-refactor
20:58
Improved comments on the OP_Column changes. Optimize out loading of overflow pages for content with zero length. Add test cases for the latter. check-in: 0e05679d user: drh tags: OP_Column-refactor
19:28
Further performance tweaks to OP_Column. check-in: 0e3f5df6 user: drh tags: OP_Column-refactor
17:25
Refactoring the OP_Column opcode for improved performance and maintainability. check-in: 7c914e39 user: drh tags: OP_Column-refactor
02:53
Simplifications to the VdbeCursor object. check-in: 5562cd34 user: drh tags: trunk
00:59
Performance improvement for the OP_MustBeInt opcode in the VDBE. check-in: 96a65388 user: drh tags: trunk
2013-11-19
18:17
Fix a harmless MSVC compiler warning. check-in: 6cc023bb user: drh tags: trunk
13:55
Minor performance improvement to sqlite3SerialTypeGet(). check-in: 17e8524f user: drh tags: trunk
12:33
Change Noop-comments in where.c into Module-comments, so that they are omitting without SQLITE_ENABLE_MODULE_COMMENTS. check-in: 3e577f40 user: drh tags: trunk
02:34
Avoid seeking on the main data table during the first loop of an UPDATE if an index is sufficient to check the WHERE clause. check-in: 57158d9d user: drh tags: trunk
00:31
Fix an requirement mark in a test script so that it matches the typo-corrected requirement. No changes to code. check-in: 072412d5 user: drh tags: trunk
2013-11-18
19:32
Add comments identifing where the skip-scan option is decided in the query planner, to aid in tuning that decision. No changes to code. check-in: e9df04ce user: drh tags: trunk
18:48
Fix documentation typos. No changes to code. check-in: 7caeb09c user: drh tags: trunk
11:20
Fix harmless compiler warnings from clang scan-build. check-in: 8d002740 user: drh tags: trunk
08:41
Fix a problem with the shell tool EXPLAIN indentation code and VDBE sub-programs. check-in: 9c8d6856 user: dan tags: trunk
03:11
Enable the ONEPASS optimization for DELETE, for both rowid and WITHOUT ROWID tables. check-in: 44a07afd user: drh tags: trunk
2013-11-17
02:42
Make sure one-pass DELETE for WITHOUT ROWID tables correctly positions the PRIMARY KEY cursor. Make the same fix for UPDATE. Closed-Leaf check-in: 6bd5750b user: drh tags: optimize-delete
2013-11-16
23:16
Fix a couple of minor problems with the new delete logic. check-in: a11243f8 user: drh tags: optimize-delete
23:03
Fix an OOM-recovery problem in the DELETE code generator. check-in: dc7be158 user: drh tags: optimize-delete
22:48
Combine the rowid and WITHOUT ROWID paths for DELETE into a single path. check-in: c4734b88 user: drh tags: optimize-delete
20:45
The one-pass optimization is now working for DELETE on WITHOUT ROWID tables. check-in: e4d220a3 user: drh tags: optimize-delete