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50 descendants and 50 ancestors of [b150902579]

2014-03-28
12:56
Fix a harmless compiler warning. check-in: a4e47150f3 user: drh tags: trunk
03:12
Enhance the sqlite3VdbeRecordCompare() routines so that if they encounter database corruption, they will set the UnpackedRecord.isCorrupt field and return 0. The sqlite3BtreeMovetoUnpacked() routine detects this and returns SQLITE_CORRUPT, causing the corruption to be reported back to the top-level. check-in: 7fa85eaaaf user: drh tags: trunk
2014-03-27
19:25
Instead of allocating a single large buffer at the beginning of each sort operation, start with a small buffer and extend it using realloc() as required. check-in: 81987c8ceb user: dan tags: orderby-planning
18:36
Minor cleanup of the code in the query planner that computes the costs estimates for the various plans. There are no changes to the costs at this time. But the code is slightly more readable now and that might facilitate future enhancements. check-in: 9b4d7226bc user: drh tags: trunk
17:23
Use xFetch() to access temporary files in vdbesort.c. Use a single large allocation instead of many small allocations when accumulating records in vdbesort.c. This is an interim commit - it allocates a buffer the size of the page-cache every time data is sorted. check-in: f4ac1bf28c user: dan tags: orderby-planning
14:05
Enhance the logest.c utility with new operators: "dup", "inv", "log", and "nlogn". Provide help on an invalid input. check-in: b4bd2a062c user: drh tags: trunk
00:09
Merge the latest trunk changes and the fix for the crash on a corrupt database. check-in: 0b35346c32 user: drh tags: orderby-planning
2014-03-26
19:45
Merge from trunk the fix for the crash on a corrupt database. check-in: 8cb2b02baa user: drh tags: threads
19:43
Merge in fixes (including the corrupt-database crash fix) and performance enhancements from trunk. check-in: fc8ca1a87e user: drh tags: sessions
15:14
Add an extra test case for the potential buffer overread patched by [28ddecff04]. check-in: f585f5d7a0 user: dan tags: trunk
15:05
Add a test case to verify that the previous change avoids excess buffer overread in sqlite3VdbeRecordCompare(). check-in: 2b28e8d582 user: drh tags: trunk
14:51
Earlier detection of corruption in sqlite3VdbeRecordCompare() in order to avoid a potential buffer overread. check-in: 28ddecff04 user: drh tags: trunk
12:02
Add an assert() and a comment to clarify the operation of the vdbeRecordCompareInt() routine. check-in: 851abdb8fd user: drh tags: trunk
2014-03-25
20:28
Adjust the repeat counts on several tests in speedtest1 so that the relative time spent on the test is roughly the same regardless of --size. check-in: 7922809ee0 user: drh tags: trunk
18:29
Merge enhancements and fixes from trunk. check-in: e005f2d6dd user: drh tags: orderby-planning
17:45
Add another performance test case to speedtest1. This case is another ORDER BY test but this time without LIMIT. check-in: 9ab7ffd592 user: drh tags: trunk
17:07
Fix a problem in the code added by [707ea170b3] causing vdbesort.c to sort unstably. check-in: d3e640afe6 user: dan tags: orderby-planning
15:04
Remove the sequence values from sorter records used by ORDER BY as well. check-in: c3ae369783 user: dan tags: orderby-planning
14:54
Add an ORDER BY test case to speedtest1.c check-in: 588122641e user: drh tags: trunk
14:12
Enable four sorting threads by default in the command-line shell. check-in: 1cab83577c user: drh tags: threads
13:17
Merge all fixes and enhancements from trunk. check-in: b415dfb6cb user: drh tags: threads
11:00
Detect when a VdbeCursor is still pointing at a valid row but that row has moved, and invalidated the return from prior sqlite3BtreeDataFetch() or sqlite3BtreeKeyFetch() calls. check-in: e6798871ce user: drh tags: trunk
2014-03-24
20:19
Omit the sequence value from sorter records used by GROUP BY queries that cannot use an index. check-in: 3f90abddc3 user: dan tags: orderby-planning
18:08
Avoid unnecessary moving of content between registers during an ORDER BY. check-in: 4f472accf0 user: drh tags: orderby-planning
16:30
Remove unused variables Parse.nColCache and Parse.iColCache. check-in: 4d7551ce46 user: dan tags: trunk
15:00
Fix arithmetic operators so that they do not change the affinity of their input operands. Ticket [a8a0d2996a]. check-in: 221f8f9447 user: drh tags: trunk
12:33
Cancel column-cache entries that are involved in a comparison operator since the comparison might have forced an affinity change. Originally proposed as a fix for ticket [a8a0d2996a], but later determined to be incorrect. Closed-Leaf check-in: 0b95b7a874 user: drh tags: tkt-a8a0d2996a
11:23
Avoid attempting to mmap memory from an offset that is not a multiple of the system page size on systems with page sizes larger than 32KB. check-in: db7d62c8d5 user: dan tags: trunk
09:34
Remove an unnecessary temporary register allocation. check-in: 5d506743f5 user: dan tags: orderby-planning
02:20
Remove a pointless OP_Once operation in ORDER BY clauses with LIMIT. check-in: e6c59d2331 user: drh tags: orderby-planning
01:43
Further enhancements to generated VDBE code for ORDER BY. check-in: e7188fad87 user: drh tags: orderby-planning
2014-03-23
18:47
merge fixes from trunk check-in: faf7f9caf5 user: drh tags: orderby-planning
17:45
Use only a single OP_MakeRecord instead of two when constructing entries to go onto a sorter. check-in: d696cdedac user: drh tags: orderby-planning
16:29
Avoid a possible use of an uninitialized variable following an I/O or OOM error. check-in: 641408a139 user: drh tags: trunk
2014-03-22
02:19
Clear the sort-order flags on the KeyInfo object associated with the OP_Compare/OP_Jump of the block-sort logic, in order to make the OP_Jump fully testable. check-in: 9b2838f23e user: drh tags: trunk
01:52
Increase the version number to 3.8.5. check-in: 9760879d08 user: drh tags: trunk
00:27
Fix the ORDER BY optimization logic so that it will do a block-sort on a partial DESC ORDER BY. This enhancement uncovered a memory leak in pushUntoSorter() which is also fixed. check-in: c36f74611c user: drh tags: trunk
2014-03-21
20:58
Add the ability to use indices for the first few terms of an ORDER BY clause, then sort in batches to handle the later terms. check-in: fa06a6fed9 user: drh tags: trunk
18:45
Merge the OFFSET-on-query-without-FROM fix from trunk. check-in: 71e9ae72c2 user: drh tags: orderby-planning
15:24
New test case for block-sorting. check-in: e70cfa28aa user: drh tags: orderby-planning
2014-03-20
20:56
Merge trunk fixes for "x IN (?)" handling. check-in: eca35871c3 user: drh tags: orderby-planning
2014-03-19
23:42
Merge the vdbesort.c optimization from trunk. check-in: e4bfffb988 user: drh tags: orderby-planning
23:24
Fix query planner weights associated with choosing block-sorting. Fix block sorting of tables with collating functions. Fix various test cases. All "veryquick" tests are now passing, though more tests need to be added. check-in: 01afbf97c0 user: drh tags: orderby-planning
17:41
Make it possible for block-sort to use the OP_SorterOpen sorter in addition to a generic OP_OpenEphemeral. check-in: 7ce2daafd3 user: drh tags: orderby-planning
16:56
Fix a problem in the block-sort logic that can arise if the VDBE opcode array is resized while the block-sort logic is being coded. "make test" now runs to completion, though there are still 17 failures. check-in: 62f3a22050 user: drh tags: orderby-planning
15:17
Avoid reusing temporary registers in co-routines when doing block-sorting. check-in: 463d921b51 user: drh tags: orderby-planning
14:30
Make sure the where.c query planner never reports that the number of ORDER BY terms that are satisfied by indices is negative. check-in: b186d8d15a user: drh tags: orderby-planning
14:10
First attempt at getting block-sort to work. This is an incremental check-in. There are many problems still to be worked out. check-in: 59742dd4c5 user: drh tags: orderby-planning
2014-03-18
20:33
Make the partial-ORDER-BY information in the query planner available to the SELECT code generator. Still doesn't make a difference in the generated code. check-in: e258df236b user: drh tags: orderby-planning
18:59
Adjust the query planner to keep track of the number of ORDER BY terms satisfied. Still doesn't do anything with this information. Some tests fail after this check-in, but all failures are believed to be benign. The failures will be addressed at a later stage. check-in: 59d49b7fc4 user: drh tags: orderby-planning
15:30
Experiments with the optimization of ORDER BY and GROUP BY clauses. check-in: b150902579 user: drh tags: orderby-planning
2014-03-17
15:06
Clean up some obsolete "register" declarations in printf.c. check-in: ecd9d3f945 user: drh tags: trunk
14:24
Performance enhancements and size reduction for sqlite3VXPrintf() check-in: eb071eb58c user: drh tags: trunk
2014-03-14
11:46
Fix a harmless compiler warning that crops up with SQLITE_MAX_MMAP_SIZE=0. check-in: 1277932b7e user: drh tags: trunk
2014-03-12
19:38
Fix an obscure bug causing sqlite3_close() to fail if there are virtual tables on the disconnect list when it is called. check-in: 6504aa47a8 user: dan tags: trunk
19:20
Changes to FTS to ensure that it does not access the database from within the xConnect method. check-in: c67a52c356 user: dan tags: trunk
12:44
Prevent the rtree module from reading sqlite_stat1 data from the wrong database. check-in: 7ce03c1b55 user: dan tags: trunk
2014-03-11
15:27
Version 3.8.4.1 check-in: 018d317b12 user: drh tags: trunk, release, version-3.8.4.1
15:25
Update version number to 3.8.4.1 check-in: 33f5694fa4 user: drh tags: trunk
09:19
Add a test to see what happens if an rtree constructor encounters an SQLITE_BUSY error. No changes to code. check-in: 5527e23636 user: dan tags: trunk
2014-03-10
20:12
Adjustments to the cost computation for the skip-scan query plan, to take into account the fact that a seek has to occur on each skip. check-in: 0769eebd02 user: drh tags: trunk
18:03
Attempt to work around MSVC's treatment of __LINE__ as a non-constant value in "Edit and Continue" mode by avoiding the use of __LINE__ when SQLITE_VDBE_COVERAGE is not defined. check-in: 0a5318bc27 user: drh tags: trunk
12:20
Version 3.8.4 check-in: 530a1ee7dc user: drh tags: trunk, release, version-3.8.4
2014-03-08
19:07
Fix a bug causing "SELECT char()" to return SQLITE_NOMEM. check-in: ba39df9d4f user: dan tags: trunk
2014-03-07
14:57
Improved comment on the pager.c PERSIST rollback journal delete logic inside of hasHotJournal(). No changes to code. check-in: e5b17a9d07 user: drh tags: trunk
03:31
Revise change from the previous check-in to clarify the situation when handling open journal files, regardless of journal mode. check-in: 1c318ef3b7 user: mistachkin tags: trunk
02:29
Avoid calling sqlite3OsDelete() on a file that is open, since this causes Windows to run *very* slowly. Comes up on error recovery in journal_mode=PERSIST. check-in: fdc651e2ec user: mistachkin tags: trunk
2014-03-06
18:16
Do not run corruptH.test in mmap mode. check-in: c0d54b4e41 user: dan tags: trunk
13:38
Improved EXPLAIN indentation of a loop in the ANALYZE logic for STAT4. Mark the not-found jump of a seek operation in that loop as never taken. check-in: 0a4200f95c user: drh tags: trunk
12:36
Remove a branch that is never taken from where.c. check-in: 4a4997221f user: dan tags: trunk
02:15
Cosmetic change to the shell in-memory database warning to skip coloring the trailing period. check-in: c87d8e07ec user: mistachkin tags: trunk
01:56
Fix some incorrect comments and typos in comments. Add testcase() macros to some of the new record comparison code. check-in: b83cfe899d user: drh tags: trunk
00:30
Better loadable extension handling in the Win32 VFS when compiled for Cygwin. check-in: 29b0a4f158 user: mistachkin tags: trunk
00:28
Better support for MinGW 4.x. check-in: 170e058520 user: mistachkin tags: trunk
2014-03-05
19:36
Always include the ctype.h header in the spellfix.c extension. check-in: bfd75f471a user: drh tags: trunk
19:13
Avoid running a couple of test cases that use realloc() extensively if SQLITE_MEMDEBUG is defined. check-in: e406d4bb78 user: dan tags: trunk
19:04
Fix a harmless compiler warning on MSVC. check-in: 0723effc9c user: drh tags: trunk
17:29
Add SQLITE_OMIT_CTE to the list of compile options that might be returned by "PRAGMA compile_options". check-in: f33f2b3f92 user: dan tags: trunk
16:15
Add tests to join.test to verify that it is not possible to use more than 64 tables in a join. check-in: ef1a998625 user: dan tags: trunk
15:52
Count the number of elements in a SrcList object using an "int" rather than a "u8", to avoid overflows and to work around an issue in the C compiler on AIX. check-in: eee2a13f2c user: drh tags: trunk
15:04
Add a test case for the problem fixed by [1d134ba2ed]. check-in: d4fbc05df9 user: dan tags: trunk
14:40
When converting a result type from TEXT to BLOB using the sqlite3_value_blob() interface, continue to report SQLITE_TEXT as the true type from sqlite3_value_text() as long as that text is still valid. The maintains legacy behavior from before the noMemType change. check-in: 1d134ba2ed user: drh tags: trunk
12:47
Separate the column NULL value constant into a separate routine for greater commonality with the sessions branch. check-in: 12cbebb997 user: drh tags: trunk
11:48
Remove the redundant memType field from struct Mem. check-in: 9e85285789 user: dan tags: trunk
11:22
Do not run corruptI.test with the mmap permutation. check-in: 378b290da8 user: dan tags: trunk
01:29
Experimental simplification of memory flags/type handling. Closed-Leaf check-in: bac2820e13 user: mistachkin tags: noMemType
2014-03-04
21:19
Avoid indexing off the front end of an array when creating a view with two or more blank column names in the SELECT statement that defines the view. check-in: 554501f158 user: drh tags: trunk
21:00
Fix a problem with "DEFAULT (-(-9223372036854775808))" clauses in ALTER TABLE ... ADD COLUMN commands. check-in: e072cb3ee2 user: dan tags: trunk
18:06
Fix a potential memory use-after-free problem following an OOM error. check-in: 767ccb1fa1 user: drh tags: trunk
16:21
Fix an assert() so that it takes OOM errors into account. check-in: 53f6ec792f user: drh tags: trunk
16:05
Ensure that BtreeMovetoUnpacked() does not try to invoke xRecordCompare when it is set to NULL. check-in: 2879234b7c user: dan tags: trunk
13:18
Improve clarity of presentation in the sqlite3VdbeMemFromBtree() routine. check-in: 9830c343bc user: drh tags: trunk
12:07
Fix comment in test. check-in: 1e57f67b20 user: mistachkin tags: trunk
11:54
Fix minor typos in the new test file. check-in: 3cbb9b1b4f user: mistachkin tags: trunk
11:35
Add tests to verify the fix for bug [4ef7e3cfca]. check-in: 62410bb8a7 user: dan tags: trunk
11:29
Fix name resolution problem in sub-selects within triggers, ticket [4ef7e3cfca]. check-in: 5bcd0b1ca5 user: mistachkin tags: trunk
11:16
Fix harmless compiler warning. check-in: 8d18a803bd user: mistachkin tags: trunk
04:12
Refactor the sqlite3VdbeRecordCompare() routine used to compare btree records. Create fast-track special case routines to handle the common cases more quickly. This gives a significant performance boost. check-in: 3325ad5bdc user: drh tags: trunk
04:04
Fix more instances of assuming 'char' is signed. And, make sure to never shift a signed integer. Closed-Leaf check-in: f10130ede4 user: drh tags: broken-on-arm
00:15
Do not assume that 'char' is signed. Make it explicit. check-in: 979da752e6 user: drh tags: broken-on-arm
2014-03-03
21:59
Refactor the sqlite3VdbeRecordCompare() routine used to compare btree records. Create a couple of fast-track routines to handle the common cases of a string with BINARY collation or integer values as the left-most column. This gives a significant performance boost in common use. Oops: This build does not work on the Beaglebone where "char" defaults to unsigned. check-in: aec5473a75 user: drh tags: broken-on-arm