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100 check-ins occurring around 530a1ee7dc.

2014-03-22
01:52
Increase the version number to 3.8.5. check-in: 9760879d 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: c36f7461 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: fa06a6fe user: drh tags: trunk
19:56
Change the names of SRT_DistTable and SRT_Table used by CTE to more meaningful SRT_DistFifo and SRT_Fifo, respectively. Simplify the IgnorableOrderby() macro in the process. check-in: 45d8cc67 user: drh tags: trunk
19:27
Avoid leaking memory in an obscure case where the flattener adds an ORDER BY clause to the recursive part of a recursive query. check-in: 1f413aca user: dan tags: trunk
18:45
Merge the OFFSET-on-query-without-FROM fix from trunk. check-in: 71e9ae72 user: drh tags: orderby-planning
18:16
Fix the OFFSET clause so that it works correctly on queries that lack a FROM clause. Ticket [07d6a0453d4ed8]. check-in: 179ef816 user: drh tags: trunk
15:24
New test case for block-sorting. check-in: e70cfa28 user: drh tags: orderby-planning
2014-03-20
20:56
Merge trunk fixes for "x IN (?)" handling. check-in: eca35871 user: drh tags: orderby-planning
19:04
Remove a testcase() that is now always true due to the "x IN (?)" optimization. Add an ALWAYS() around a conditional in the parser that cannot be false. check-in: d5a1530b user: drh tags: trunk
18:56
Only use the direct-overflow-read optimization if all data from the overflow page in question is being read. check-in: d8e1f75d user: dan tags: overflow-pgno-cache
18:45
Fix the EXPLAIN indenter in the command-line shell to correctly handle NextIfOpen and PrevIfOpen opcodes. check-in: 01944c53 user: drh tags: trunk
17:03
The "x IN (?)" optimization in check-ins [2ff3b25f40] and [e68b427afb] is incorrect, as demonstrated by the in4-5.1 test case in this check-in. The "COLLATE binary" that was being added to the RHS of IN was overriding the implicit collating sequence of the LHS. This change defines the EP_Generic expression node property that blocks all affinity or collating sequence information in the expression subtree and adds that property to the expression taken from RHS of the IN operator. check-in: 2ea4a9f7 user: drh tags: trunk
15:14
Fix harmless compiler warnings. check-in: b1435f26 user: drh tags: trunk
14:56
Previous check-in is not quite correct. "x IN (?)" is not exactly the same as "x==?" do to collation and affinity issues. The correct converstion should be to "x==(+? COLLATE binary)". The current check-in fixes this problem and provides test cases. Ticket [e39d032577df69] check-in: 2ff3b25f user: drh tags: trunk
13:26
Convert expressions of the form "X IN (?)" with exactly one value on the RHS of the IN into equality tests: "X=?". Add test cases to verify that statements work correctly on this corner case. Fix for ticket [e39d032577df6942]. check-in: e68b427a user: drh tags: trunk
12:36
One possible fix for the [e39d032577d] problem it to replace the failing assert() with a testcase() as shown here. Closed-Leaf check-in: eae6dfbe user: drh tags: tkt-e39d0325
12:17
Fix an unnecessarily obtuse use of a bitmask flag. check-in: ca314081 user: drh tags: trunk
09:42
Add a test to ensure os_unix.c works with 64KiB OS pages. Closed-Leaf check-in: e3d2be3b user: dan tags: shm-mapping-fix
08:59
Add an experimental fix to 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: 6f3a5c24 user: dan tags: shm-mapping-fix
2014-03-19
23:42
Merge the vdbesort.c optimization from trunk. check-in: e4bfffb9 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: 01afbf97 user: drh tags: orderby-planning
20:01
Avoid some unnecessary calls to sqlite3VdbeRecordUnpack() that were being made when merging data from two or more temp files together in vdbesort.c check-in: 707ea170 user: dan tags: trunk
17:41
Make it possible for block-sort to use the OP_SorterOpen sorter in addition to a generic OP_OpenEphemeral. check-in: 7ce2daaf 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: 62f3a220 user: drh tags: orderby-planning
15:17
Avoid reusing temporary registers in co-routines when doing block-sorting. check-in: 463d921b 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: b186d8d1 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: 59742dd4 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: e258df23 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: 59d49b7f user: drh tags: orderby-planning
15:30
Experiments with the optimization of ORDER BY and GROUP BY clauses. check-in: b1509025 user: drh tags: orderby-planning
2014-03-17
15:43
Add an experimental multi-threaded capability to vdbesorter.c. check-in: ff0b5c85 user: dan tags: threads
15:06
Clean up some obsolete "register" declarations in printf.c. check-in: ecd9d3f9 user: drh tags: trunk
14:24
Performance enhancements and size reduction for sqlite3VXPrintf() check-in: eb071eb5 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: 1277932b user: drh tags: trunk
2014-03-13
15:41
Merge latest trunk changes into this branch. check-in: d17231b6 user: dan tags: threads
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: 6504aa47 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: c67a52c3 user: dan tags: trunk
12:44
Prevent the rtree module from reading sqlite_stat1 data from the wrong database. check-in: 7ce03c1b user: dan tags: trunk
10:03
Bump the version number to 3.8.4.1., to conform with trunk. check-in: 42c9d8fc user: drh tags: sessions
2014-03-11
23:44
Remove a stray C99-style comment. check-in: f500e87d user: drh tags: overflow-pgno-cache
23:40
Combine the various boolean fields of the BtCursor object into a single bit-vector. This allows setting or clearing more than one boolean at a time and makes the overflow-pgno-cache branch faster than trunk on speedtest1. check-in: 968fec44 user: drh tags: overflow-pgno-cache
20:33
Enable the b-tree cursor object's overflow page-number cache, which is normally enabled only for incr-blob cursors, for all cursors. check-in: da591985 user: dan tags: overflow-pgno-cache
15:27
Version 3.8.4.1 check-in: 018d317b user: drh tags: trunk, release, version-3.8.4.1
15:25
Update version number to 3.8.4.1 check-in: 33f5694f user: drh tags: trunk
14:44
Forgot to change the VERSION file. Closed-Leaf check-in: 04caffce user: drh tags: mistake
09:19
Add a test to see what happens if an rtree constructor encounters an SQLITE_BUSY error. No changes to code. check-in: 5527e236 user: dan tags: trunk
01:48
Version 3.8.4 for sessions (plus two minor fixes). check-in: 917c4108 user: drh tags: sessions
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: 0769eebd 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: 0a5318bc user: drh tags: trunk
12:20
Version 3.8.4 check-in: 530a1ee7 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: ba39df9d 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: e5b17a9d user: drh tags: trunk
14:36
Merge the fix for the journal_mode=PERSIST error recovery delay bug. check-in: bb6a75f4 user: drh tags: sessions
03:31
Revise change from the previous check-in to clarify the situation when handling open journal files, regardless of journal mode. check-in: 1c318ef3 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: fdc651e2 user: mistachkin tags: trunk
2014-03-06
18:16
Do not run corruptH.test in mmap mode. check-in: c0d54b4e user: dan tags: trunk
15:01
Fix a harmless compiler warning in the sessions test harness. check-in: d389e20a user: drh tags: sessions
14:53
Enhance the test harness for the sessions interface so that it does not use SQLite operations that can encounter an OOM error in places where it is unable to report an OOM error back up to the test script. check-in: bc0e6610 user: drh tags: sessions
13:48
Merge the latest 3.8.4 tweaks from trunk. check-in: 1ed463d9 user: drh tags: sessions
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: 0a4200f9 user: drh tags: trunk
12:36
Remove a branch that is never taken from where.c. check-in: 4a499722 user: dan tags: trunk
02:15
Cosmetic change to the shell in-memory database warning to skip coloring the trailing period. check-in: c87d8e07 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: b83cfe89 user: drh tags: trunk
00:30
Better loadable extension handling in the Win32 VFS when compiled for Cygwin. check-in: 29b0a4f1 user: mistachkin tags: trunk
00:28
Better support for MinGW 4.x. check-in: 170e0585 user: mistachkin tags: trunk
2014-03-05
23:12
Merge compiler-warning fixes from trunk. check-in: a1f2b042 user: drh tags: sessions
19:36
Always include the ctype.h header in the spellfix.c extension. check-in: bfd75f47 user: drh tags: trunk
19:13
Avoid running a couple of test cases that use realloc() extensively if SQLITE_MEMDEBUG is defined. check-in: e406d4bb user: dan tags: trunk
19:04
Fix a harmless compiler warning on MSVC. check-in: 0723effc 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: f33f2b3f 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: ef1a9986 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: eee2a13f user: drh tags: trunk
15:04
Add a test case for the problem fixed by [1d134ba2ed]. check-in: d4fbc05d user: dan tags: trunk
14:49
Merge in various obscure bug fixes and the removal of Mem.memType from trunk. check-in: 0828975d user: drh tags: sessions
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: 1d134ba2 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: 12cbebb9 user: drh tags: trunk
11:48
Remove the redundant memType field from struct Mem. check-in: 9e852857 user: dan tags: trunk
11:22
Do not run corruptI.test with the mmap permutation. check-in: 378b290d user: dan tags: trunk
01:29
Experimental simplification of memory flags/type handling. Closed-Leaf check-in: bac2820e 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: 554501f1 user: drh tags: trunk
21:00
Fix a problem with "DEFAULT (-(-9223372036854775808))" clauses in ALTER TABLE ... ADD COLUMN commands. check-in: e072cb3e user: dan tags: trunk
18:06
Fix a potential memory use-after-free problem following an OOM error. check-in: 767ccb1f user: drh tags: trunk
16:21
Fix an assert() so that it takes OOM errors into account. check-in: 53f6ec79 user: drh tags: trunk
16:05
Ensure that BtreeMovetoUnpacked() does not try to invoke xRecordCompare when it is set to NULL. check-in: 2879234b user: dan tags: trunk
14:34
Merge the performance enhancements of trunk (and some obscure bug fixes) into the sessions branch. check-in: 7f51ad97 user: drh tags: sessions
13:18
Improve clarity of presentation in the sqlite3VdbeMemFromBtree() routine. check-in: 9830c343 user: drh tags: trunk
12:07
Fix comment in test. check-in: 1e57f67b user: mistachkin tags: trunk
11:54
Fix minor typos in the new test file. check-in: 3cbb9b1b user: mistachkin tags: trunk
11:35
Add tests to verify the fix for bug [4ef7e3cfca]. check-in: 62410bb8 user: dan tags: trunk
11:29
Fix name resolution problem in sub-selects within triggers, ticket [4ef7e3cfca]. check-in: 5bcd0b1c user: mistachkin tags: trunk
11:16
Fix harmless compiler warning. check-in: 8d18a803 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: 3325ad5b 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: f10130ed user: drh tags: broken-on-arm
00:15
Do not assume that 'char' is signed. Make it explicit. check-in: 979da752 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: aec5473a user: drh tags: broken-on-arm
21:46
Fix a couple of harmless compiler warnings. Closed-Leaf check-in: fcf480cc user: drh tags: experimental
20:48
Avoid a buffer overread in vdbeCompareRecordInt() that might occur if the database is corrupt. check-in: 7c0b4381 user: dan tags: experimental
19:29
Fix a typo in a comment. No changes to code. check-in: 1f4991ab user: drh tags: experimental
18:25
Fix compiler warnings. check-in: ba899372 user: drh tags: experimental