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50 check-ins occurring around d17231b63d48c1f9.

2014-03-20
18:45
Fix the EXPLAIN indenter in the command-line shell to correctly handle NextIfOpen and PrevIfOpen opcodes. check-in: 01944c53f5 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: 2ea4a9f75f user: drh tags: trunk
15:14
Fix harmless compiler warnings. check-in: b1435f26b0 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: 2ff3b25f40 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: e68b427afb 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: eae6dfbe55 user: drh tags: tkt-e39d0325
12:17
Fix an unnecessarily obtuse use of a bitmask flag. check-in: ca31408131 user: drh tags: trunk
09:42
Add a test to ensure os_unix.c works with 64KiB OS pages. Closed-Leaf check-in: e3d2be3ba4 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: 6f3a5c24d2 user: dan tags: shm-mapping-fix
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
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: 707ea170b3 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: 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
15:43
Add an experimental multi-threaded capability to vdbesorter.c. check-in: ff0b5c851b user: dan tags: threads
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
2014-03-13
15:41
Merge latest trunk changes into this branch. check-in: d17231b63d 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: 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
10:03
Bump the version number to 3.8.4.1., to conform with trunk. check-in: 42c9d8fc5f user: drh tags: sessions
2014-03-11
23:44
Remove a stray C99-style comment. check-in: f500e87d6e 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: 968fec44d7 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: da59198505 user: dan tags: overflow-pgno-cache
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
14:44
Forgot to change the VERSION file. Closed-Leaf check-in: 04caffcef3 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: 5527e23636 user: dan tags: trunk
01:48
Version 3.8.4 for sessions (plus two minor fixes). check-in: 917c410808 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: 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
14:36
Merge the fix for the journal_mode=PERSIST error recovery delay bug. check-in: bb6a75f4bb 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: 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
15:01
Fix a harmless compiler warning in the sessions test harness. check-in: d389e20ab0 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: bc0e661033 user: drh tags: sessions
13:48
Merge the latest 3.8.4 tweaks from trunk. check-in: 1ed463d918 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: 0a4200f95c user: drh tags: trunk