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100 check-ins occurring around ea3317a480.

2014-02-25
19:38
Make sure temporary registers used within a co-routine are not also used outside of that co-routine, in order to prevent concurrent use of the same register for two different things. Ticket [8c63ff0eca81a9132d8] Closed-Leaf check-in: cc5eda54 user: drh tags: tkt-8c63ff0eca
18:12
Also adjust the order of files in the amalgamation to ensure that _FILE_OFFSET_BITS is defined before any #include, for QNX. check-in: 23001a85 user: drh tags: trunk
14:52
QNX requires that _FILE_OFFSET_BITS be set prior to any system #include. check-in: 953cdd6a user: drh tags: trunk
2014-02-24
21:42
Fix several small style/consistency issues with the previous check-in. check-in: 2477b3a2 user: mistachkin tags: trunk
21:23
Merge updates from trunk. Closed-Leaf check-in: 854d410a user: mistachkin tags: cygDlOpen
21:20
Enhance testing support for the Win32 VFS dynamic extension loading facilities. check-in: 53081e72 user: mistachkin tags: trunk
19:49
Close some stray connections in walro.test. check-in: d6746cab user: dan tags: trunk
19:07
In memsys5, initialize new allocations to non-zero bytes. Change the content of freed allocations to prevent use after free. These changes in SQLITE_DEBUG only. check-in: ba5f0a55 user: drh tags: trunk
14:24
Remove an unused variable from the VDBE_PROFILE compile-time option. Keep the opcode count in an u32 instead of an int. check-in: 4df0ac90 user: drh tags: trunk
2014-02-21
10:48
Merge updates from trunk. check-in: 09cf240a user: mistachkin tags: winHdr
05:44
Better loadable extension handling in the Win32 VFS when compiled for Cygwin. check-in: 6676475c user: mistachkin tags: cygDlOpen
2014-02-20
19:42
Fix the text of a comment used to generate VDBE opcode documentation so that it omits symbols that can be mistaken for a hyperlink by the parser. check-in: b46d4e89 user: drh tags: trunk
19:32
Fix a harmless shadowed-variable warning. check-in: 82402909 user: drh tags: trunk
19:23
Make sure that the difference between two string pointers is passed into sqlite3_mprintf() as type "int". check-in: d5d973fe user: drh tags: trunk
2014-02-19
19:14
Add the VdbeCoverageNeverTaken() macro, and comments that better describe how the VDBE branch coverage measurement works. Add some tags to provide 100% VDBE branch coverage. check-in: c1e94169 user: drh tags: trunk
14:20
Add the SQLITE_NOTNULL P5 code for comparison operations - really a composite of SQLITE_NULLEQ and SQLITE_JUMPIFNULL. This flag indicates that NULL operands are not possible and raises and assert() if NULL operands are seen. Also omit an unnecessary scan of the sqlite_sequence table when writing into an AUTOINCREMENT table. check-in: d2c047f3 user: drh tags: trunk
01:31
Make sure a multi-row VALUES clause works correctly in a compound SELECT. check-in: 85b355cf user: drh tags: trunk
00:53
Tweaks in support of VDBE branch test coverage. check-in: b9782564 user: drh tags: trunk
2014-02-18
11:31
Fix VDBE branch accounting on comparison operators. check-in: b287520c user: drh tags: trunk
05:18
Enhance the Win32 VFS I/O retry logic. check-in: adba783c user: mistachkin tags: winIoRetry
03:07
Add VdbeCoverage() and VdbeCoverageIf() macros for improved VDBE coverage testing. check-in: b92d31a9 user: drh tags: trunk
01:07
Improvements to "NOT IN (SELECT ...)" processing. Only test for NULL values on the RHS on the first iteration, then remember the result. There has been logic to do this for year, but it didn't work right and ended up repeating the NULL test on every iteration. This inefficiency was found using the VDBE coverage testing tools. check-in: 915f6f1c user: drh tags: trunk
2014-02-17
23:52
Merge in performance enhancements for INSERT operations, especially INSERTs on tables that have no affinity columns or that have many indices or INSERTs with content coming from a SELECT. Add the SQLITE_TESTCTRL_VDBE_COVERAGE test control and the SQLITE_VDBE_COVERAGE compile-time option used for measure coverage of branches in VDBE programs. check-in: a7268769 user: drh tags: trunk
22:40
Add logic to do test coverage measurements on the VDBE code. Closed-Leaf check-in: ce184c7b user: drh tags: insert-optimization
15:40
Add a test case for OP_SoftNull. check-in: f29d194e user: drh tags: insert-optimization
15:36
Merge the VDBE_PROFILE fixes from trunk. check-in: 2914e419 user: drh tags: insert-optimization
14:59
Avoid unnecessary calls to applyAffinity() during INSERT and UPDATE operations, especially for table that have indices and tables for which all columns have affinity "NONE". check-in: 35b4d6e9 user: drh tags: insert-optimization
01:13
Fix the VDBE_PROFILE logic. Add a script to process the output file. check-in: 7adb3da2 user: drh tags: trunk
2014-02-16
19:20
Use the modern MinGW major version macro, not the deprecated one. Closed-Leaf check-in: 057c16ee user: mistachkin tags: mingw4x
01:55
Enhance the code generator for INSERT INTO ... SELECT so that the SELECT generates output directly in the registers that INSERT INTO will be using, in many cases, and OP_SCopy operations can thus be avoided. check-in: aa2d8b0e user: drh tags: insert-optimization
2014-02-14
23:49
Seek past NULLs in a top-constrained search. Avoid checking for NULLs in the body of the search. check-in: e07a32f3 user: drh tags: trunk
23:35
Better support for MinGW 4.x. check-in: e1472307 user: mistachkin tags: mingw4x
20:59
Reduce the number of cases where it is necessary to check for NULL after the loop terminating condition. check-in: 3c1ae447 user: drh tags: trunk
15:13
Add OP_IdxGT and OP_IdxLE as distinct opcodes. Formerly these operations where done using OP_IdxGE and OP_IdxLT with the P5 flag set. But VDBE code is easier to read with distinct opcode names. Also change OP_SeekGe to OP_SeekGE, and so forth, so that the capitalization is consistent. The whole point of this change is to improve the readability of VDBE listings. check-in: b6bea903 user: drh tags: trunk
00:25
Revise how the Tcl system encoding is handled by the test suite. check-in: 9e573198 user: mistachkin tags: trunk
2014-02-13
21:57
Improvements to the makefile and README for MSVC. check-in: b22b6140 user: mistachkin tags: trunk
19:27
Ensure that if the "psow=0" URI option or FCNTL_POWERSAFE_OVERWRITE file-control is used to clear the power-safe overwrite flag, extra padding frames are added to the WAL file. check-in: 48c821fd user: dan tags: trunk
19:10
Change README to README.md and expand it. Remove unrelated and obsolete files. check-in: 18d4e258 user: drh tags: trunk
18:46
Avoid passing a flags argument with the internal WAL_SYNC_TRANSACTIONS bit set when calling sqlite3OsSync(). check-in: e3b79e92 user: dan tags: trunk
13:42
Update the tclconfig files to the latest from http://core.tcl.tk/tclconfig. check-in: b81ba7a4 user: drh tags: trunk
2014-02-12
23:52
Minor simplifications to the "zeroPage()" routine in btree.c. check-in: cc8f10bc user: drh tags: trunk
21:31
Remove the "rowid cache" that sought to remember the largest rowid for a table and thereby speed up OP_NewRowid. That cache was ineffective. Removing it results in a performance increase of 0.4%, less memory usage, and a slightly smaller library size. check-in: 56bc5ce8 user: drh tags: trunk
15:05
Various fixes and test case updates so that veryquick.test passes again. Leaf check-in: f352ef57 user: dan tags: deferred-open
14:43
Make sure "rowid" columns are correctly resolved in joins between normal tables and WITHOUT ROWID tables. Fix for ticket [c34d0557f740c45070]. check-in: 5d01426d user: drh tags: trunk
14:43
Merge latest trunk changes. check-in: 4d7057c4 user: dan tags: deferred-open
2014-02-11
19:35
Test case updates to account for the fact that database files are not created until they are first written. check-in: 8ef97420 user: dan tags: deferred-open
16:31
Sync with trunk. Bring in the command-line shell updates and the new 3.8.4 version number. check-in: 2cd35ff6 user: drh tags: sessions
16:24
Increase the version number to 3.8.4 check-in: 0a8bcbbd user: drh tags: trunk
16:22
Updates to the command-line shell. Simplify the banner message. Add the ".save" command as an alias for ".backup". When starting with no arguments, include a banner message warning that the database is transient and in-memory and mention the ".open" command. check-in: f5ad1e1b user: drh tags: trunk
14:52
Version 3.8.3.1 check-in: ea3317a4 user: drh tags: release, version-3.8.3.1, branch-3.8.3
14:37
Fixes to the "editline" support in the command-line shell. check-in: 7989ce5f user: drh tags: trunk
05:26
Merge latest trunk changes. check-in: 1f2e1b0c user: dan tags: deferred-open
04:30
Sync the latest trunk changes, and in particular the STAT4 IS NOT NULL fix. check-in: b0067926 user: drh tags: sessions
03:55
Increase the version number to 3.8.3.1. check-in: 3111df71 user: drh tags: branch-3.8.3
03:50
Make sure that virtual WHERE-clause terms do not get transformed into real terms when processing set of OR-connected terms. Fix for ticket [4c86b126f22ad]. check-in: de635e09 user: drh tags: branch-3.8.3
01:50
Make sure that virtual WHERE-clause terms do not get transformed into real terms when processing set of OR-connected terms. Fix for ticket [4c86b126f22ad]. check-in: c950d6c4 user: drh tags: trunk
2014-02-10
21:09
Fix a bug causing the POWERSAFE_OVERWRITE device-characteristic flag to be set incorrectly if file opening is deferred. check-in: 95d0c58d user: dan tags: deferred-open
21:07
Fix a pointless conditional. Add a test case. check-in: 9367632d user: drh tags: trunk
19:59
Add the ".save" command as an alias for ".backup". Improvements to the way font changes are implemented on the in-memory database warning. Closed-Leaf check-in: fe284afe user: drh tags: memdb-warning
19:37
Experimental change to os_unix.c to delay creating a database file until it is first written. check-in: 538f7b25 user: dan tags: deferred-open
19:36
On unix, make the "transient in-memory database" text bold, but not red. Leave the text read on windows. check-in: c9eba2f7 user: drh tags: memdb-warning
19:27
In the command-line shell, on the banner, warn about the use of a transient in-memory database in bold red text. check-in: 0fbc0fce user: drh tags: memdb-warning
18:56
Fix the compound-select-to-subquery converter so that it works with the new compound-select object linkage introduced as part of the fix for ticket [31a19d11b97088296]. check-in: 572d4be4 user: drh tags: trunk
16:13
Modify the command-line shell to print a warning when using an in-memory database. check-in: 90e9deae user: drh tags: memdb-warning
15:56
Improvements to a "Synopsis:" comment in the VDBE engine. check-in: 0dfa7ee9 user: drh tags: trunk
12:59
Faster implementation for sqlite3MulInt64(). check-in: 010c48f6 user: drh tags: trunk
03:21
Faster and smaller implementation of sqlite3_value_type(). check-in: 5708bc24 user: drh tags: trunk
2014-02-09
23:59
Add a compound-query test to the speedtest1 test program. check-in: 53299575 user: drh tags: trunk
18:02
Use the WITH clause to help resolve names for SELECT statements on the left of a compound query. Proposed fix for ticket [31a19d11b97088296a]. check-in: 67bfd59d user: drh tags: trunk
00:52
Add the Mandelbrot Set testcase to the "cte" testset of speedtest1. check-in: 56febbeb user: drh tags: trunk
00:18
Add a new "testset" to the speedtest1 program: The sudoku solver. check-in: 4677ef2f user: drh tags: trunk
2014-02-08
23:20
Do away with the "multi-register pseudo-table" abstration. Instead, just use an OP_SCopy to load results directory from the result registers of the co-routine. check-in: 1e64dd78 user: drh tags: trunk
19:12
Change the OP_Found opcode so that it expands zero-blobs prior to comparing them. Fix for ticket [fccbde530a6583b] check-in: e2303d1b user: drh tags: trunk
13:24
Fix a harmless compiler warning in VS2013. check-in: 83116ee3 user: drh tags: trunk
13:22
Fix a harmless compiler warning in VS2013. check-in: 35f2793d user: drh tags: branch-3.8.3
13:12
Tweaks to the generated VDBE code to make it a little easier to follow. check-in: 129217ee user: drh tags: trunk
04:24
Enable constant expression factoring even if no tables are read and no transaction is started. check-in: a45b8771 user: drh tags: trunk
01:40
Change the OP_Trace opcode to OP_Init and give it the ability to jump to the initialization code at the bottom of the program, thus avoiding the need for an extra OP_Goto. check-in: 192dea97 user: drh tags: trunk
2014-02-07
22:21
Add opcodes OP_InitCoroutine and OP_EndCoroutine. Use these to remove the need for separate boolean registers to record when a co-routine has finished. check-in: 5a88b6a7 user: drh tags: trunk
19:33
Fix redundant definitions of _LARGE_FILE and _LARGEFILE_SOURCE. check-in: 4043d879 user: drh tags: trunk
19:26
In the TCL bindings, make sure Tcl_AppendResult() is always terminated by "(char*)0" and not just "0". check-in: ea4d23d1 user: drh tags: trunk
19:18
Change the OP_InitCoroutine instruction to jump over the co-routine implementation. Closed-Leaf check-in: a522f364 user: drh tags: coroutine-refactor
18:27
Get rid of the OP_Undef and OP_IsUndef opcodes in favor of higher-level OP_InitCoroutine and OP_EndCoroutine. check-in: 1ec0e9dd user: drh tags: coroutine-refactor
13:20
Add the OP_Undef and OP_IsUndef opcodes. With these, use the first register in the result register range as the flag to indicate EOF on an INSERT from a SELECT, rather than allocating a separate boolean register for that task. check-in: 6fb74485 user: drh tags: coroutine-refactor
03:28
More comment updates. No changes to code. check-in: be24fbc2 user: mistachkin tags: trunk
02:29
Update comments in vdbe.c. No changes to code. check-in: 1122b410 user: drh tags: trunk
2014-02-06
23:56
Delete the OP_VerifySchema opcode. Enhance OP_Transaction to do the schema version checks that OP_VerifySchema used to do. check-in: 2f3376eb user: drh tags: trunk
14:59
Change more OP_OpenEphemeral operations to OP_OpenHash. Leaf check-in: 881164cf user: drh tags: subquery-codegen-refactor
13:18
Change the spellfix1 virtual table to deterministically names its shadow tables. check-in: 5219cdfc user: drh tags: trunk
03:31
Use OpenHash instead of OpenEphemeral for the RHS of IN operators if the result is not needed for sorting. check-in: 715fac77 user: drh tags: subquery-codegen-refactor
02:46
Add additional error messages and a progress spinner to the ".clone" command. check-in: dd0db3f0 user: drh tags: trunk
01:15
Rename the '.repair' shell command to '.clone'. check-in: 4f9d9562 user: mistachkin tags: trunk
00:49
Add the ".repair" command to the command-line shell. check-in: d1dfadea user: drh tags: trunk
2014-02-05
19:10
Separate out the code generators for the RHS of an IN operator and for SELECT/EXISTS expressions. check-in: 61c34ba7 user: drh tags: subquery-codegen-refactor
18:15
Use a new opcode, OP_OpenHash, to indicate that ephemeral tables can be unordered, rather than using the BTREE_UNORDERED bit in the P5 field. check-in: 2997e181 user: drh tags: subquery-codegen-refactor
17:08
Make the root page of an ephemeral index be page 1 instead of page 2. check-in: a332908b user: drh tags: subquery-codegen-refactor
11:05
In the Win32 VFS, the winSysInfo variable should be static. check-in: 4a4dd371 user: mistachkin tags: trunk
2014-02-04
23:45
Do not mark the ephemeral tables used to hold the RHS of IN clauses as unordered because the NGQP will use those ephemeral tables to help order the output. This is not an issue for standard SQLite since ephemeral tables there are always ordered, regardless of the hint. It only affects systems that substitute an alternative storage engine. check-in: f2504089 user: drh tags: trunk
20:46
Remove the SF_Materialize flag from the SELECT object as it does not accomplish anything useful. check-in: 65d5dcdd user: drh tags: trunk
15:55
Rearrange fields in the Parse object for a tighter packing, resulting in an 8% size reduction on x64. check-in: 3e1a3f68 user: drh tags: trunk