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100 check-ins occurring around 09b4f19f100fe82a.

2009-11-20
17:18
Add a test to make sure a database can be attached to a single handle twice if not in shared-cache mode. (check-in: 1c4984c6 user: dan tags: trunk)
16:13
Fix a bug in LIMIT 0 for compound SELECT statement. The problem was introduced by recent enhancements and has not appeared in any release. (check-in: c6ed7e2a user: drh tags: trunk)
15:02
If the root pages numbers of the internal schema are adjusted due to autovacuum on a DROP TABLE statement and that statement later aborts (for example, due to an OOM error) then reset the internal schema at the conclusion of the statement. Partial fix for ticket [564d412f15a]. (check-in: e493b093 user: drh tags: trunk)
13:18
Avoid unnecessary page cache allocations when move a page while autovacuuming an in-memory database, since the allocation might fail making it impossible to rollback the transaction. (check-in: 9a429349 user: drh tags: trunk)
05:05
Improve comments and other things in fts3_write.c. (check-in: 1cf0e3cc user: dan tags: trunk)
02:24
Minor optimizations to fts3 code. (check-in: b456eacb user: dan tags: trunk)
2009-11-19
18:30
Merge leaves [7cd178a72a] and [598727e6da]. (check-in: 4115c0c2 user: dan tags: trunk)
18:28
Fix a performance regression introduced while reworking the fts3 code. (check-in: 7cd178a7 user: dan tags: trunk)
15:44
Remove an unreachable branch from the OP_Affinity suppression logic. (check-in: 598727e6 user: drh tags: trunk)
15:26
Merge fts3-refactor into the main trunk. (check-in: 551dbe30 user: dan tags: trunk)
15:25
Fix some fts3 related issues with the autoconf and amalgamation build systems. (Closed-Leaf check-in: 3b179247 user: dan)
14:57
Merge with [4bd4330709]. (check-in: 7a46d1eb user: dan tags: fts3-refactor)
14:52
Merge the fts3-refactor branch with the trunk. (check-in: c8d2bd37 user: dan tags: fts3-refactor)
14:48
Fix a bug introduced with recent optimizations: The unary minus operator is TK_UMINUS, not TK_MINUS. (check-in: 4bd43307 user: drh tags: trunk)
00:15
Fix problems introduced into fts3 as part of the refactoring. (check-in: fa0998e1 user: dan tags: fts3-refactor)
2009-11-18
23:01
Performance improvement by avoiding unnecessary calls to memset(). (check-in: 85940468 user: drh tags: trunk)
15:35
Add some missing comments and fix some other issues in fts3 code. (check-in: 2fe579e7 user: dan tags: fts3-refactor)
01:25
Suppress more instances of unnecessary OP_IsNull and OP_Affinity opcodes. (check-in: bf6c0bd1 user: drh tags: trunk)
2009-11-17
23:59
Enhancements to the VDBE opcode loop to reduce the number of machine-code instructions evaluated by about 10%. (check-in: 9744ffb3 user: drh tags: trunk)
18:31
Code generator tries to avoid pointless OP_IsNull and OP_Affinity opcodes. (check-in: ebb0c8a3 user: drh tags: trunk)
12:52
Improvements to the way fts3 reads the full-text index. (check-in: 45c051e7 user: dan tags: fts3-refactor)
2009-11-16
23:36
Make sure the output of sqlite3OsFullPathname is initialized even if the fails due to I/O or OOM errors. (check-in: e4943adb user: drh tags: trunk)
22:54
Fix a reference to freed memory that can occur following an OOM error in where.c. (check-in: 929b6047 user: drh tags: trunk)
21:28
Back out part of the change in [23ea2b700fd6d28d] since TH3 reveals some problems in OOM situations. (check-in: 15d215d6 user: drh tags: trunk)
16:36
Add a few extra coverage test cases for fts3. (check-in: f29c8fca user: dan tags: fts3-refactor)
15:11
Use the sqlite3CtypeMap to improve the speed and reduce the size of the logic in the tokenizer that recognizes identifiers. (check-in: 1c9243b0 user: drh tags: trunk)
03:13
Additional optimizations in sqlite3VdbeRecordCompare(). (check-in: 23ea2b70 user: drh tags: trunk)
02:14
Optimizations to the sqlite3VdbeRecordCompare() routine help it to run 12.5% faster for some traces. (check-in: 74c76f0b user: drh tags: trunk)
2009-11-15
06:50
Fixes to fts3 integrity check code. (check-in: d3cae986 user: dan tags: fts3-refactor)
2009-11-14
23:22
Optimizations to the main loop inside sqlite3VdbeExec() to help VDBE byte code run a few percent faster. (check-in: d622ac6a user: drh tags: trunk)
18:41
Further OOM testing for fts3 code. Add Tcl code implementing an integrity-check for fts3. (check-in: c27d46b3 user: dan tags: fts3-refactor)
18:04
Make the sqlite3VdbeExec() function about 2% faster by storing the opcode array in a local variable. (check-in: 8bd3cc82 user: drh tags: trunk)
2009-11-13
20:52
Performance improvements and size reductions on the OP_Seek* family of VDBE opcodes. (check-in: ed820f45 user: drh tags: trunk)
19:43
Simplify the OPFLG processing logic in the VDBE for a speed boost in the VDBE processing loop and a reduction in code size. (check-in: 3352b3eb user: drh tags: trunk)
17:36
Start reworking fts3 code to match the rest of SQLite (code conventions, malloc-failure handling etc.). (check-in: 30a92f11 user: dan tags: fts3-refactor)
17:05
Force 8-byte memory alignment on memory allocated for VDBE cursors. (check-in: bdc45ba7 user: drh tags: trunk)
10:04
Changes to test_intarray.c so that it build with SQLITE_OMIT_VIRTUALTABLE. Added testcase() macros to expr.c. (check-in: f0599d28 user: drh tags: trunk)
2009-11-12
20:39
Shift more OP_Found opcodes over to using the unpacked format, for improved performance. (check-in: 6705ab1a user: drh tags: trunk)
19:59
Enhance the OP_Found and OP_NotFound opcodes so that they can accept an array of registers as an unpacked record in addition to a record built using OP_MakeRecord. Use this to avoid OP_MakeRecord calls during IN expression processing. (check-in: b9eab885 user: drh tags: trunk)
17:52
Factor out the IN operator code generation into a subroutine. Use this subroutine to implement both logic and branching versions of the IN operator. (check-in: fcff5b7e user: drh tags: trunk)
13:32
Factor out the code generator for BETWEEN into a subroutine. (check-in: 5735f60b user: drh tags: trunk)
05:04
Update comment for substrFunc(). Added additional SUBSTR() test cases. (check-in: d7b3801d user: shaneh tags: trunk)
04:26
Suppress unnecessary OP_Noop instructions on when the right table of a LEFT JOIN uses the index-only optimization. (check-in: e8aec08b user: drh tags: trunk)
03:46
Suppress excess OP_Null opcodes caused by binary IS or IS NOT operators that are converted into unary ISNULL or NOTNULL operators. (check-in: cff1b36a user: drh tags: trunk)
03:13
Adjustments to the implementation of LIMIT so that it uses fewer opcodes. (check-in: 39d5b292 user: drh tags: trunk)
2009-11-11
23:58
If the sector size is unspecified (initially 0) then set it to 512, not to 32. (check-in: 8861b5c1 user: drh tags: trunk)
23:48
Remove an obsolete (and incorrect) comment from sqlite3MemCompare(). No changes to code. (check-in: c15b70b3 user: drh tags: trunk)
20:53
Tweaks to the SUBSTR() function to make it dramatically faster in the common case where the input string is large but the 2nd and 3rd arguments are small positive integers. (check-in: 5a474a86 user: drh tags: trunk)
13:17
Allow media sector sizes as small as 32. The former minimum size was 512. (check-in: 5a32bfc1 user: drh tags: trunk)
04:17
Modified CLI to raise an error when extra command line options are passed. Added tests to verify correct handling, as well as other basic handling of command line options. Ticket [f5cb008a65]. (check-in: 09b4f19f user: shaneh tags: trunk)
01:14
Additional test cases for the coalesce() and ifnull() functions. (check-in: d0591258 user: drh tags: trunk)
00:24
Generate VDBE code for the built-in COALESCE() and IFNULL() functions. This allows unused arguments to never be evaluated, which is a performance win when the unused argument is a subquery. (check-in: 30055b25 user: drh tags: trunk)
2009-11-10
17:55
Additional intarray test cases and tweaks to comments. (check-in: 0c8db5d8 user: drh tags: trunk)
17:24
Initial implementation and test cases for the "intarray" virtual table. (check-in: 0e7d2925 user: drh tags: trunk)
17:07
Fix for datbase name being ignored with the -batch option in the CLI. Ticket [aeff892c57]. (check-in: 8097c64a user: shaneh tags: trunk)
01:30
Remove the obsolete "$Id:$" RCS identifier strings from the source code. (check-in: f6c045f6 user: drh tags: trunk)
01:13
Remove from the TCL interface some old code associated with sqlite3_analyzer. (check-in: 01f2271e user: drh tags: trunk)
01:12
Omit some code that is not used when SQLITE_SECURE_DELETE is defined. (check-in: 5a9e7463 user: drh tags: trunk)
2009-11-09
19:30
Fix for lock structure sharing with AFP-style locking (check-in: 62f15c0a user: adam tags: apple-osx)
2009-11-06
17:20
Improved shell "dot" command argument handling. Ticket [f12a9eeedc]. (check-in: 9fb69919 user: shaneh tags: trunk)
04:13
Fix the backup API so that a backup from an empty database to a non-empty database works. Ticket [0bf974bdf9]. The only changes are in assert() statements. (check-in: ddb71cd9 user: drh tags: trunk)
03:33
Merged accidental fork. (check-in: d410cd4e user: shaneh tags: trunk)
03:22
Add some very basic tests for the commands available from the CLI. (check-in: 6bf43338 user: shaneh tags: trunk)
2009-11-05
18:46
Recover an ophaned branch that resulted from some ill-advised "shunning". This check-in should be identical to [bd443f39a9] except that it should be on the trunk. (check-in: 38eaf1ab user: drh tags: trunk)
18:31
Fix an undefined variable on non-Mac builds. (check-in: 9552de8f user: drh tags: apple-osx)
17:27
Do not limit the trigger recursion depth when SQLITE_SMALL_STACK is defined since trigger recursion uses the heap, not the stack. (Closed-Leaf check-in: bd443f39 user: drh tags: shunning-error)
16:29
Add a comment related to code coverage. No changes to code. (check-in: 6bdc2c99 user: drh tags: shunning-error)
04:14
Update maxRow size after shrinking the row buffer (CSV). (Closed-Leaf check-in: d474195a user: shaneh tags: csv_ext)
04:01
Removed line limit on rows. (check-in: ec08b15f user: shaneh tags: csv_ext)
02:34
Initial implementation of a virtual table for CSV files. (check-in: 90e63b7d user: shaneh tags: csv_ext)
2009-11-04
23:02
Fix a typo on the ynVar typedef that unfortunately caused 3.6.20 to be released with a "bug" that causes excess memory usage for Expr objects. This bug should be benign in the sense that the correct answer is still always obtained - it only uses more more memory than is really necessary. (check-in: f1c09aca user: drh tags: shunning-error)
21:49
Do not accept a codec no an in-memory database. (check-in: 6f3081a8 user: drh tags: shunning-error)
18:51
Fix documentation typos. (check-in: 590d4ac1 user: drh tags: shunning-error)
13:30
Version 3.6.20 (check-in: eb7a544f user: drh tags: trunk, release)
13:17
Create a new datatype "ynVar" to hold "nVar" (number of variable) values. This is normally 16-bits can can be 32-bits if SQLITE_MAX_VARIABLE_NUMBER is large enough. (check-in: 24a4d520 user: drh tags: trunk)
01:56
Report errors back up to the ATTACH command if the codec fails to initialize. (check-in: a6c69610 user: drh tags: trunk)
2009-11-03
22:34
Customizations for OSX contributed by Apple. (check-in: 941a01eb user: adam tags: apple-osx)
19:42
Fix compiler warnings on MSVC build. (check-in: 01c4b5b8 user: shane tags: trunk)
19:18
Enhancements to lemon to generate more compact action tables and to avoid making array bounds tests that can never fail on action table calculations. (check-in: 27d8e684 user: drh tags: trunk)
13:08
Force all qsort() calls in mkkeywordhash.c to be stable so that we get predictable results on different platforms. (check-in: 3b02df27 user: drh tags: trunk)
13:02
Adjust the lemon implementation so that it always computes the same PDA regardless of qsort() implementation on the host platform. In other words, make all sorts in lemon stable. (check-in: d66a0f31 user: drh tags: trunk)
01:22
All SQLITE_MAX_VARIABLE_NUMBER to exceed 32767. The sizes of some structures increase when the compile-time parameter is configured this way. (check-in: 16a24b44 user: drh tags: trunk)
2009-11-02
18:44
Bug fix in the recent changes to mkopcodeh.awk. (check-in: 6610cac4 user: drh tags: trunk)
18:14
Update the generator AWK script for opcodes.h so that it always generates opcode numbers in the same order and is not dependent on the hash order of opcode names within AWK. (check-in: e730195f user: drh tags: trunk)
18:01
Do not insert the date and time of generation into the amalgamation. (check-in: 9f6cf13d user: drh tags: trunk)
17:40
Update the configure script for version 3.6.20. (check-in: f19cb105 user: drh tags: trunk)
15:51
Comment changes in support of better documentation. No changes to code. (check-in: 79ab4714 user: drh tags: trunk)
2009-11-01
19:26
Fix compiler warnings. Better comments on some variables associated with LIKE/GLOB processing in the query planner. (check-in: cfa2db0f user: drh tags: trunk)
2009-10-30
14:27
Increase the version number to 3.6.20. (check-in: 61295274 user: drh tags: trunk)
13:26
Version 3.6.16.1 (Leaf check-in: 2a832b19 user: drh tags: release, branch_3_6_16)
13:25
Avoid storing the result register for EXISTS and SELECT in any field of the Expr object - simply return the register number as the return value of the function that codes those expressions. (check-in: 7253f8fa user: drh tags: trunk)
2009-10-29
18:38
Fix a 16-bit integer overflow that might occur in statements that use both an EXISTS clause and IN operator with a RHS holding in excess of 32K entries. (check-in: 65a1f133 user: drh tags: branch_3_6_16)
13:48
Reduce the memory required by prepared statements that use the IN operator with a list on the right and an INTEGER PRIMARY KEY on the left. (check-in: e7984ad2 user: drh tags: trunk)
2009-10-27
18:06
Minor updates and corrections to comments in btreeInt.h. No changes to code. (check-in: ad949fa1 user: drh tags: trunk)
2009-10-26
22:32
Remove additional obsolete code from the sqlite3_release_memory() logic. (check-in: 2eeb6ed8 user: drh tags: trunk)
22:08
Remove some obsolete code within #if 0 that was causing developer concern. (check-in: 1d64e945 user: drh tags: trunk)
2009-10-24
15:51
Fix a compiler warning that occurs when building the TCL interface. (check-in: fc36034b user: drh tags: trunk)
03:04
Another attempt at getting the pTail pointer computations correct for sqlite3_prepare16(). Ticket [3fe897352e]. (check-in: a96b4e8c user: drh tags: trunk)
02:06
In shell, modified to not print informational messages during startup while in "batch mode". Ticket [2cb66577f6]. (check-in: e3898e25 user: shane tags: trunk)
02:00
In shell, changed ".tables" command to not add '%' to specified pattern. This is consistent with other commands that take a LIKE pattern (.dump, .schema, .indices). Updated internal help to better describe LIKE pattern usage. Fixed a few more inconsistencies in error messages. Ticket [6da68f691b]. (check-in: 7201244e user: shane tags: trunk)