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50 check-ins occurring around 8fb90da77ce0e662.

2014-09-18
16:28
Performance improvement for affinity transformations on comparison operators. (check-in: d7afdcbac2 user: drh tags: trunk)
15:57
Remove some c++isms from sqlite3ota.c. (check-in: 0da1862b1b user: dan tags: ota-update)
15:22
Add new file ext/ota/README.txt, containing notes regarding the implementation of the ota extension. (check-in: 3c6e1cbb4b user: dan tags: ota-update)
14:48
Add an API to query an ota handle for the total number of key/value operations performed so far. (check-in: e3943fa7bb user: dan tags: ota-update)
14:36
Since numeric affinity is the most common case, check it first. Interchange the NONE and TEXT affinity codes for easier checking of no affinity. (check-in: 4ef4c9a7c8 user: drh tags: trunk)
11:31
Merge latest trunk changes with this branch. (check-in: 67ea2979d5 user: dan tags: ota-update)
11:15
Fix an ota bug causing attempts to write to tables with more than 8 columns to fail. (check-in: 7da98ca242 user: dan tags: ota-update)
09:59
Modify an assert() within sqlite3PagerWalFramesize(), a function only ever used by zipvfs, to account for recent zipvfs changes. (check-in: 3bd7c1b2fa user: dan tags: trunk)
02:20
Fix harmless warnings on 32-bit MSVC builds. (check-in: 5192f964b2 user: drh tags: trunk)
01:50
Make sure of the strchrnul() library function on platforms where it is available. (check-in: ef1aa10b7f user: drh tags: trunk)
01:29
Merge micro-optimizations into trunk after fixing the build on MSVC. Performance now shows 7.58% faster than the 3.8.6 release on x64 with gcc 4.8.1 and -Os. (check-in: 1de558bcb1 user: drh tags: trunk)
01:21
Fix compiler warnings and change the nullMem structure initializer into a format that MSVC can understand. (Closed-Leaf check-in: 163bfae858 user: drh tags: micro-optimizations)
2014-09-17
23:37
Performance improvement and slight size reduction to the comparison operators in the VDBE. (check-in: 14052a7d08 user: drh tags: micro-optimizations)
19:05
Fix an unintialized variable problem in sqlite3ota.c. (check-in: 0126860751 user: dan tags: ota-update)
16:41
In the Mem object, stop requiring that Mem.xDel be NULL when the MEM_Dyn bit is clear. Also reduce the amount of initialization of Mem objects. All for a small size reduction and performance increase. (check-in: fdddb477c8 user: drh tags: micro-optimizations)
15:20
Add tests and fixes for "PRAGMA ota_mode". (check-in: 39df35c4ac user: dan tags: ota-update)
14:52
Improved interface to the Mem object handling. Small size reduction and performance increase. (check-in: 4e43784432 user: drh tags: micro-optimizations)
2014-09-16
21:54
Continuing cleanup of memory register memory allocation handling. (check-in: 2598aedc5d user: drh tags: micro-optimizations)
20:05
Make sure registers are cleared properly prior to being used to store the result of an OP_Column operator. (check-in: 78fb8838d8 user: drh tags: micro-optimizations)
20:02
Clarify the effects of the pager_ota_mode pragma. Add tests and fixes for the same. (check-in: decaccc37c user: dan tags: ota-update)
18:22
Simplification of the OP_Column logic for the case of rows with overflow. (check-in: f73678038d user: drh tags: micro-optimizations)
14:55
Remove an unused parameter from sqlite3VdbeIdxRowid(). This is cosmetic only as the C-compiler optimizers were already omitting this parameter on amalgamation builds. (check-in: a10a6bba49 user: drh tags: micro-optimizations)
14:37
Reduce the number of arguments to RecordCompare functions from 4 to 3, resulting in a small performance increase. (check-in: 8239c35aed user: drh tags: micro-optimizations)
14:16
Reorder the elements of the Mem object for a small size reduction and performance improvement. Moved into a branch because MSVC is unable to handle named structure initializer on nullMem. (check-in: 0be3019ed7 user: drh tags: micro-optimizations)
13:30
Changes to sqlite3VdbeRecordUnpack() to make it slightly smaller and faster. (check-in: 8fb90da77c user: drh tags: trunk)
03:24
Performance improvement to the sqlite3MemCompare() routine by factoring out sqlite3BlobCompare(). (check-in: 20ed2321b0 user: drh tags: trunk)
2014-09-15
19:34
Remove the experimental sqlite3_transaction_save() and restore() APIs. (check-in: 48d201cd8b user: dan tags: ota-update)
16:57
Merge latest trunk fixes into this branch. (check-in: 5efafef51d user: dan tags: ota-update)
16:53
Fix tool/showwal.c so that it handles WAL files that contain 64KiB pages. (check-in: 4060efb646 user: dan tags: trunk)
16:50
Avoid attempting to call the xFetch() method of an sqlite3_io_methods object with a version number less than 3. (check-in: dedaa6fb3d user: dan tags: trunk)
15:34
Merge latest trunk changes with this branch. (check-in: 55b8011d5b user: dan tags: ota-update)
15:22
Have sqlite3ota.c use grave accents instead of double-quotes to enclose identifiers in generated SQL. To avoid having the SQL engine substitute a literal string if a column reference cannot be resolved. (check-in: 79f2418429 user: dan tags: ota-update)
14:59
Remove the EXPENSIVE_ASSERTS in pcache.c having to do with the pSynced field of the Pcache object, as they are incorrect, as revealed by recent pcache enhancements. (check-in: 69a6456077 user: drh tags: trunk)
14:54
Ensure the correct collation sequences are used when sorting data in sqlite3ota.c. (check-in: 473a72d700 user: dan tags: ota-update)
14:46
Do not flatten aggregate subqueries that contain min() or max() functions so that if the min()/max() are discarded by the outer query, they still function and cause non-aggregate expression to be evaluated on the minimal or maximal row. (check-in: 0bdf1a086b user: drh tags: trunk)
12:18
Have the sqlite3_index_writer() VMs check that the final values of records inserted into indexes on rowid tables are integers. (check-in: cca376bff3 user: dan tags: ota-update)
11:14
Adjust comments to show that subquery flattening restriction (10) was removed from the code back in 2005. This is a comment change only. (check-in: 4ff0eb96bc user: drh tags: trunk)
10:44
Add OP_Affinity opcodes to the VMs generated by sqlite3_index_writer(). (check-in: b9b38cb8e2 user: dan tags: ota-update)
2014-09-12
20:30
Small performance improvement to the dirty list handling in the pager. (check-in: b332a84d51 user: drh tags: trunk)
17:41
Simplify the way the column cache is managed around OP_Move instructions. (check-in: 320556233e user: drh tags: trunk)
04:28
Fix a problem with parser memory allocation on 32-bit systems. (check-in: 2f69a1fa6a user: drh tags: trunk)
2014-09-11
23:34
Fix an issue with sqlite3_bind_text64() with the SQLITE_UTF16 encoding parameter. Remove some unreachable code from the text64() and blob64() implementation. (check-in: 34292b084e user: drh tags: trunk)
18:44
Add new APIs that take 64-bit length parameters: sqlite3_malloc64(), sqlite3_realloc64(), sqlite3_bind_blob64(), sqlite3_bind_text64(), sqlite3_result_blob64(), and sqlite3_result_text64(). Add the sqlite3_msize() interface. Internal memory allocation routines now use 64-bit unsigned length parameters for safety. Fix the sqlite3_get_table() to use sqlite3_realloc64() to avoid a integer overflow problem. (check-in: 7e4978c003 user: drh tags: trunk)
17:27
Add the SQLITE_USER_AUTHENTICATION extension to the trunk. This extension is disabled by default. Special compilation procedures are need to enable it. (check-in: 65884d4f81 user: drh tags: trunk)
17:14
Clean up some #includes in the extension API implementation. (Closed-Leaf check-in: b149ef5c63 user: drh tags: user-auth)
16:36
Suppress the potential schema error that occurs when a non-user-auth SQLite library tries to parse the sqlite_user table definition in a user-auth database. (check-in: cda33c1ef3 user: drh tags: user-auth)
16:19
Enhance the sqlite3_user_add() interface to initialize the user authentication logic. Add test cases for the extra argument on the end of the authorizer callback. (check-in: 842c6da8f1 user: drh tags: user-auth)
15:25
All interfaces working and tested. (check-in: 96ea5c0b3c user: drh tags: user-auth)
14:56
Get the sqlite3_user_delete() interface working. (check-in: 974a9c6558 user: drh tags: user-auth)
14:40
Fix the sqlite3_user_change() interface so that it does allow a non-admin user to change their own password. (check-in: 52d440c7e1 user: drh tags: user-auth)