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50 check-ins occurring around 1c6ee9b85f61e5cd.
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2013-12-18
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| 18:44 | Remove an unnecessary column-cache flush operation. Add code to trace the column cache when compiled with SQLITE_DEBUG and using PRAGMA vdbe_addoptrace=ON. (check-in: 58704ed1f4 user: drh tags: trunk) | |
| 16:27 | Remove an unnecessary column-cache flush. Add another test case to the speedtest1.c program to accentuate the benefit of not flushing the cache at that point. (Closed-Leaf check-in: 97fdfc6b79 user: drh tags: column-cache-debug) | |
| 15:11 | Show changes to the column cache when PRAGMA vdbe_addoptrace=ON is set. (check-in: 4c6a659c43 user: drh tags: column-cache-debug) | |
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2013-12-17
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| 16:32 | Add evidence marks and additional test cases for the printf() SQL function. (check-in: 93121d3097 user: drh tags: trunk) | |
| 16:10 | Add the printf() SQL function. (check-in: a1bb62f91a user: drh tags: trunk) | |
| 15:58 | Fix the formatting of %c in the printf() SQL function. (Closed-Leaf check-in: 3375571a5e user: drh tags: printf-sql-function) | |
| 15:03 | Add the printf() SQL function. (check-in: 6db7052eee user: drh tags: printf-sql-function) | |
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2013-12-14
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| 18:24 | Merge in all recent preformance enhancements from trunk. (check-in: 32477642d7 user: drh tags: sessions) | |
| 13:44 | Allow the SQLITE_DETERMINISTIC flag to be ORed into the preferred text encoding of application-defined functions, to mark the function as deterministic. (check-in: 5716fc2341 user: drh tags: trunk) | |
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2013-12-13
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| 20:45 | Performance optimizations in the pager_write() routine of pager.c. (check-in: bc5febef92 user: drh tags: trunk) | |
| 19:48 | Reduce the number of calls to the subjRequiresPage() routine inside of pager. (check-in: e50ff39a93 user: drh tags: trunk) | |
| 19:35 | Create and use a new pager interface sqlite3PagerUnrefNotNull() that works just like sqlite3PagerUnref() but guarantees that its argument is not a NULL pointer. (check-in: e00f37e233 user: drh tags: trunk) | |
| 18:50 | Enhance the pcache1PinPage() routine so that it called much less often and runs much faster in the cases when it is actually called. (check-in: a845779cd3 user: drh tags: trunk) | |
| 16:42 | Avoid unnecessary calls to sqlite3_free() from within sqlite3VXPrintf(). (check-in: e2a8b280e8 user: drh tags: trunk) | |
| 16:23 | Simplication and optimization of error message handling. (check-in: 9d347f547e user: drh tags: trunk) | |
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2013-12-11
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| 15:47 | Add the SQLITE_FCNTL_SYNC and SQLITE_FCNTL_COMMIT_PHASETWO file-controls and have the pager call them at appropriate times. This is needed in order to enable ZIPVFS to do multi-file atomic commits. (check-in: 552f94d50f user: drh tags: trunk) | |
| 14:17 | Merge in the latest trunk changes. (Closed-Leaf check-in: 9ff4dfe1e3 user: drh tags: zipvfs-multifile-commit) | |
| 14:00 | Fix a bug in the shell ".import" command: Do not end the field when an escaped double-quote occurs at the end of a CRNL line. (check-in: 5e239ecda0 user: drh tags: trunk) | |
| 12:02 | Remove an unreachable conditional inserted by the previous check-in. (check-in: 3e1d55f0bd user: drh tags: trunk) | |
| 11:03 | Have the crash-test infrastructure code in test6.c read and write the 512-byte block containing the pending-byte lock as normal. Earlier versions did not access this part of the file in order to avoid triggering an assert in os_unix.c. But the assert() has since been removed. And not reading/writing this part of the file causes problems for multiplexor tests. (check-in: fdc3f3fa3d user: dan tags: zipvfs-multifile-commit) | |
| 11:00 | Fix harmless compiler warnings. (check-in: a7e5fcd666 user: drh tags: trunk) | |
| 02:21 | Fix harmless compiler warning. (check-in: 2525296d91 user: mistachkin tags: trunk) | |
| 00:59 | Do not run the tool/vdbe-compress.tcl script that generates the vdbeExecUnion object that reduces the size of the sqlite3VdbeExec() stack frame unless the SQLITE_SMALL_STACK compile-time option is specified as on of the OPTS in the makefile. The vdbeExecUnion object gets in the way of C-compiler optimizer and results in slightly slower code. (check-in: 4d0781473a user: drh tags: trunk) | |
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2013-12-10
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| 21:38 | Avoid unnecessary calls to sqlite3VdbeSerialType() from within sqlite3VdbeSerialPut(). (check-in: 079c04a501 user: drh tags: trunk) | |
| 20:53 | In the OP_MakeRecord opcode, factor out affinity changes into separate loop, for a slight performance advantage. (check-in: 1c6ee9b85f user: drh tags: trunk) | |
| 19:49 | Simplify and improve the performance of the sqlite3VdbeMemGrow() routine. (check-in: 48ecf18774 user: drh tags: trunk) | |
| 17:34 | Use SQLITE_FCNTL_SYNC instead of SQLITE_FCNTL_SYNC_OMITTED. Add documentation in for FCNTL_SYNC and FCNTL_COMMIT_PHASETWO. (check-in: 46231af985 user: dan tags: zipvfs-multifile-commit) | |
| 16:35 | Merge changes from the trunk. (check-in: 3ee736a39d user: dan tags: zipvfs-multifile-commit) | |
| 16:27 | Fix handling of errors returned by the SQLITE_FCNTL_OMIT_SYNCED file-control. (check-in: d9a5f44f4a user: dan tags: zipvfs-multifile-commit) | |
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2013-12-09
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| 23:17 | Simplifications to the OP_MakeRecord opcode and the sqlite3VdbeSerialPut() helper function. (check-in: 7277a76969 user: drh tags: trunk) | |
| 21:48 | Correct the VFS name as reported by the file control when explicitly using the 'win32-longpath' VFS. (check-in: c43b59dac1 user: mistachkin tags: trunk) | |
| 21:06 | Reduce the number of times that OP_Column calls sqlite3VdbeMemMakeWriteable(). (check-in: 6b51863553 user: drh tags: trunk) | |
| 20:43 | Simplify the sqlite3BtreeKeyFetch() and sqlite3BtreeDataFetch() interfaces to the storage engine. (check-in: bf97598592 user: drh tags: trunk) | |
| 20:42 | Modify the way some internal file-controls are invoked. In order to support multi-file transactions in the zipvfs extension. (check-in: 32fb1784af user: dan tags: zipvfs-multifile-commit) | |
| 19:25 | Minor performance optimizations in pager.c. (check-in: ba9eef5f52 user: drh tags: trunk) | |
| 19:03 | Performance optimizations for sqlite3VXPrintf(). (check-in: 9227ad48e1 user: drh tags: trunk) | |
| 12:24 | Fix an incorrect test number in the output of the speedtest1.c program. No changes to the test algorithms. (check-in: fbfc075a5a user: drh tags: trunk) | |
| 03:07 | Avoid unnecessary (no-op) calls to sqlite3DbFree() from sqlite3VdbeMemRelease(). (check-in: 2d6dd7c2eb user: drh tags: trunk) | |
| 02:32 | Use memmove() rather than a home-made copy loop in insertCell() too. (check-in: a3d796b167 user: drh tags: trunk) | |
| 01:58 | Use memmove() rather than a home-made copy loop in dropCell() of btree.c, for a size reduction and performance improvement. (check-in: 78e1706804 user: drh tags: trunk) | |
| 01:04 | Avoid unnecessary no-op calls from getAndInitPage() to btreeInitPage() in the btree.c logic. (check-in: 81f5ae13b2 user: drh tags: trunk) | |
| 00:47 | Use putVarint32() instead of putVarint() for a quantity that can never exceed 2GiB - 1. (check-in: 6996fb3444 user: drh tags: trunk) | |
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2013-12-08
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| 23:33 | Another simplification to the OP_MakeRecord opcode, making it slightly faster and very slightly smaller. (check-in: f2f5a3ce9d user: drh tags: trunk) | |
| 22:59 | Avoid unnecessary calls to sqlite3VarintLen() from the OP_MakeRecord opcode. (check-in: 7a234fc3c5 user: drh tags: trunk) | |
| 19:54 | Interchange two conditions in an "if" statment in sqlite3PagerAcquire() for very slight (0.06%) overall performance increase. (check-in: fbcc1a3ebb user: drh tags: trunk) | |
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2013-12-07
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| 23:35 | Do not allow cursor hints to use expressions containing subqueries. This change fixes the problem seen in the previous check-in. (check-in: bfefc57554 user: drh tags: cursor-hints) | |
| 20:39 | If the SQLITE_ENABLE_CURSOR_HINTS macro is defined, then invoke the sqlite3BtreeCursorHint() interface to provide hints to the storage engine about rows that need not be returned. Hints can be disabled using SQLITE_TESTCTRL_OPTIMIZATIONS with SQLITE_CursorHints (0x2000). Cursor hints are not used by the built-in storage engine of SQLite but might be useful to applications that provide their own storage engine. The current code is work-in-progrss and contains bugs. (check-in: 3a9bec524e user: drh tags: cursor-hints) | |
| 17:01 | Increase the version number to 3.8.3. (check-in: 23d00f2287 user: drh tags: trunk) | |
| 16:56 | At the start of each journaled write transaction, check to see if the database file has been moved, and if it has refuse to start the transaction, returning an SQLITE_READONLY_DBMOVED error code. Writing to a moved or renamed database is still allowed when journal_mode is OFF or MEMORY. (check-in: 369a23e006 user: drh tags: trunk) | |
| 16:45 | Back out the new device capability. The determination of whether or not a file has moved is now done strictly using a file-control. (Closed-Leaf check-in: 9c59f5af7a user: drh tags: detect-moved-db) | |