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100 ancestors of [eca35871]
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2014-03-20
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| 20:56 | Merge trunk fixes for "x IN (?)" handling. check-in: eca35871 user: drh tags: orderby-planning | |
| 19:04 | Remove a testcase() that is now always true due to the "x IN (?)" optimization. Add an ALWAYS() around a conditional in the parser that cannot be false. check-in: d5a1530b user: drh tags: trunk | |
| 18:45 | Fix the EXPLAIN indenter in the command-line shell to correctly handle NextIfOpen and PrevIfOpen opcodes. check-in: 01944c53 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: 2ea4a9f7 user: drh tags: trunk | |
| 15:14 | Fix harmless compiler warnings. check-in: b1435f26 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: 2ff3b25f 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: e68b427a user: drh tags: trunk | |
| 12:17 | Fix an unnecessarily obtuse use of a bitmask flag. check-in: ca314081 user: drh tags: trunk | |
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2014-03-19
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| 23:42 | Merge the vdbesort.c optimization from trunk. check-in: e4bfffb9 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: 01afbf97 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: 707ea170 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: 7ce2daaf 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: 62f3a220 user: drh tags: orderby-planning | |
| 15:17 | Avoid reusing temporary registers in co-routines when doing block-sorting. check-in: 463d921b 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: b186d8d1 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: 59742dd4 user: drh tags: orderby-planning | |
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2014-03-18
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| 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: e258df23 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: 59d49b7f user: drh tags: orderby-planning | |
| 15:30 | Experiments with the optimization of ORDER BY and GROUP BY clauses. check-in: b1509025 user: drh tags: orderby-planning | |
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2014-03-17
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| 15:06 | Clean up some obsolete "register" declarations in printf.c. check-in: ecd9d3f9 user: drh tags: trunk | |
| 14:24 | Performance enhancements and size reduction for sqlite3VXPrintf() check-in: eb071eb5 user: drh tags: trunk | |
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2014-03-14
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| 11:46 | Fix a harmless compiler warning that crops up with SQLITE_MAX_MMAP_SIZE=0. check-in: 1277932b user: drh tags: trunk | |
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2014-03-12
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| 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: 6504aa47 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: c67a52c3 user: dan tags: trunk | |
| 12:44 | Prevent the rtree module from reading sqlite_stat1 data from the wrong database. check-in: 7ce03c1b user: dan tags: trunk | |
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2014-03-11
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| 15:27 | Version 3.8.4.1 check-in: 018d317b user: drh tags: trunk, release, version-3.8.4.1 | |
| 15:25 | Update version number to 3.8.4.1 check-in: 33f5694f user: drh tags: trunk | |
| 09:19 | Add a test to see what happens if an rtree constructor encounters an SQLITE_BUSY error. No changes to code. check-in: 5527e236 user: dan tags: trunk | |
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2014-03-10
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| 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: 0769eebd 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: 0a5318bc user: drh tags: trunk | |
| 12:20 | Version 3.8.4 check-in: 530a1ee7 user: drh tags: trunk, release, version-3.8.4 | |
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2014-03-08
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| 19:07 | Fix a bug causing "SELECT char()" to return SQLITE_NOMEM. check-in: ba39df9d user: dan tags: trunk | |
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2014-03-07
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| 14:57 | Improved comment on the pager.c PERSIST rollback journal delete logic inside of hasHotJournal(). No changes to code. check-in: e5b17a9d user: drh tags: trunk | |
| 03:31 | Revise change from the previous check-in to clarify the situation when handling open journal files, regardless of journal mode. check-in: 1c318ef3 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: fdc651e2 user: mistachkin tags: trunk | |
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2014-03-06
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| 18:16 | Do not run corruptH.test in mmap mode. check-in: c0d54b4e user: dan tags: trunk | |
| 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: 0a4200f9 user: drh tags: trunk | |
| 12:36 | Remove a branch that is never taken from where.c. check-in: 4a499722 user: dan tags: trunk | |
| 02:15 | Cosmetic change to the shell in-memory database warning to skip coloring the trailing period. check-in: c87d8e07 user: mistachkin tags: trunk | |
| 01:56 | Fix some incorrect comments and typos in comments. Add testcase() macros to some of the new record comparison code. check-in: b83cfe89 user: drh tags: trunk | |
| 00:30 | Better loadable extension handling in the Win32 VFS when compiled for Cygwin. check-in: 29b0a4f1 user: mistachkin tags: trunk | |
| 00:28 | Better support for MinGW 4.x. check-in: 170e0585 user: mistachkin tags: trunk | |
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2014-03-05
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| 19:36 | Always include the ctype.h header in the spellfix.c extension. check-in: bfd75f47 user: drh tags: trunk | |
| 19:13 | Avoid running a couple of test cases that use realloc() extensively if SQLITE_MEMDEBUG is defined. check-in: e406d4bb user: dan tags: trunk | |
| 19:04 | Fix a harmless compiler warning on MSVC. check-in: 0723effc user: drh tags: trunk | |
| 17:29 | Add SQLITE_OMIT_CTE to the list of compile options that might be returned by "PRAGMA compile_options". check-in: f33f2b3f user: dan tags: trunk | |
| 16:15 | Add tests to join.test to verify that it is not possible to use more than 64 tables in a join. check-in: ef1a9986 user: dan tags: trunk | |
| 15:52 | Count the number of elements in a SrcList object using an "int" rather than a "u8", to avoid overflows and to work around an issue in the C compiler on AIX. check-in: eee2a13f user: drh tags: trunk | |
| 15:04 | Add a test case for the problem fixed by [1d134ba2ed]. check-in: d4fbc05d user: dan tags: trunk | |
| 14:40 | When converting a result type from TEXT to BLOB using the sqlite3_value_blob() interface, continue to report SQLITE_TEXT as the true type from sqlite3_value_text() as long as that text is still valid. The maintains legacy behavior from before the noMemType change. check-in: 1d134ba2 user: drh tags: trunk | |
| 12:47 | Separate the column NULL value constant into a separate routine for greater commonality with the sessions branch. check-in: 12cbebb9 user: drh tags: trunk | |
| 11:48 | Remove the redundant memType field from struct Mem. check-in: 9e852857 user: dan tags: trunk | |
| 11:22 | Do not run corruptI.test with the mmap permutation. check-in: 378b290d user: dan tags: trunk | |
| 01:29 | Experimental simplification of memory flags/type handling. Closed-Leaf check-in: bac2820e user: mistachkin tags: noMemType | |
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2014-03-04
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| 21:19 | Avoid indexing off the front end of an array when creating a view with two or more blank column names in the SELECT statement that defines the view. check-in: 554501f1 user: drh tags: trunk | |
| 21:00 | Fix a problem with "DEFAULT (-(-9223372036854775808))" clauses in ALTER TABLE ... ADD COLUMN commands. check-in: e072cb3e user: dan tags: trunk | |
| 18:06 | Fix a potential memory use-after-free problem following an OOM error. check-in: 767ccb1f user: drh tags: trunk | |
| 16:21 | Fix an assert() so that it takes OOM errors into account. check-in: 53f6ec79 user: drh tags: trunk | |
| 16:05 | Ensure that BtreeMovetoUnpacked() does not try to invoke xRecordCompare when it is set to NULL. check-in: 2879234b user: dan tags: trunk | |
| 13:18 | Improve clarity of presentation in the sqlite3VdbeMemFromBtree() routine. check-in: 9830c343 user: drh tags: trunk | |
| 12:07 | Fix comment in test. check-in: 1e57f67b user: mistachkin tags: trunk | |
| 11:54 | Fix minor typos in the new test file. check-in: 3cbb9b1b user: mistachkin tags: trunk | |
| 11:35 | Add tests to verify the fix for bug [4ef7e3cfca]. check-in: 62410bb8 user: dan tags: trunk | |
| 11:29 | Fix name resolution problem in sub-selects within triggers, ticket [4ef7e3cfca]. check-in: 5bcd0b1c user: mistachkin tags: trunk | |
| 11:16 | Fix harmless compiler warning. check-in: 8d18a803 user: mistachkin tags: trunk | |
| 04:12 | Refactor the sqlite3VdbeRecordCompare() routine used to compare btree records. Create fast-track special case routines to handle the common cases more quickly. This gives a significant performance boost. check-in: 3325ad5b user: drh tags: trunk | |
| 04:04 | Fix more instances of assuming 'char' is signed. And, make sure to never shift a signed integer. Closed-Leaf check-in: f10130ed user: drh tags: broken-on-arm | |
| 00:15 | Do not assume that 'char' is signed. Make it explicit. check-in: 979da752 user: drh tags: broken-on-arm | |
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2014-03-03
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| 21:59 | Refactor the sqlite3VdbeRecordCompare() routine used to compare btree records. Create a couple of fast-track routines to handle the common cases of a string with BINARY collation or integer values as the left-most column. This gives a significant performance boost in common use. Oops: This build does not work on the Beaglebone where "char" defaults to unsigned. check-in: aec5473a user: drh tags: broken-on-arm | |
| 21:46 | Fix a couple of harmless compiler warnings. Closed-Leaf check-in: fcf480cc user: drh tags: experimental | |
| 20:48 | Avoid a buffer overread in vdbeCompareRecordInt() that might occur if the database is corrupt. check-in: 7c0b4381 user: dan tags: experimental | |
| 19:29 | Fix a typo in a comment. No changes to code. check-in: 1f4991ab user: drh tags: experimental | |
| 18:25 | Fix compiler warnings. check-in: ba899372 user: drh tags: experimental | |
| 17:48 | Merge latest trunk changes. check-in: 1d603564 user: dan tags: experimental | |
| 17:36 | Change an OP_SCopy into an OP_Copy in a case where the destination might be used after the source has changed. check-in: c0fa0c0e user: drh tags: trunk | |
| 16:48 | Change the "explain_i" tcl test command so that xterm color codes are only added if the output is actually a terminal. check-in: 559835e5 user: dan tags: trunk | |
| 15:13 | Fix a harmless compiler warning. check-in: d7f6837e user: drh tags: experimental | |
| 14:45 | Merge latest trunk changes. check-in: e00ed717 user: dan tags: experimental | |
| 14:20 | Fix a segfault that can occur following an OOM error. check-in: 7fdd378d user: dan tags: trunk | |
| 00:12 | Change the MEM_Dyn flag so that it means that Mem.xDel exists and must be used to free the string or blob. Add tighter invariant checks on Mem. check-in: e3f6c61e user: drh tags: trunk | |
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2014-03-01
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| 19:45 | Merge trunk changes. check-in: 9c1747b5 user: dan tags: experimental | |
| 19:44 | Remove the vdbeRecordCompareLargeHeader function. Fix some other details. check-in: 3861e853 user: dan tags: experimental | |
| 18:13 | Change the MEM_Dyn flag so that it means that Mem.xDel exists and must be used to free the string or blob. Add tighter invariant checks on Mem. Closed-Leaf check-in: 44e1c337 user: drh tags: enhanced-mem-check | |
| 16:24 | Factor the Mem invariant checker into a separate procedure (rather than a macro) so that it can be more easily extended. check-in: 354699d5 user: drh tags: enhanced-mem-check | |
| 14:45 | Add extra assert() statements trying to catch a Mem object in an inconsistent state. check-in: 4aeb3ae4 user: drh tags: enhanced-mem-check | |
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2014-02-28
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| 20:47 | In the command-line shell add the (undocumented and unsupported) ".eqp" command and -eqp command-line option, to cause EXPLAIN QUERY PLAN to be run on each SQL statement as it is evaluated. Intended use is for analysis of the query planner. check-in: e6ecf733 user: drh tags: trunk | |
| 19:37 | Provide an #ifdef in shell.c to work around issues when cross-compiling from Ubuntu to windows. check-in: 0a3579d9 user: drh tags: trunk | |
| 18:39 | Update some test cases that deal with corrupt databases. check-in: 3a09f560 user: dan tags: experimental | |
| 09:48 | Minor tweak to vdbeRecordCompareInt(). check-in: 284bde0e user: dan tags: experimental | |
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2014-02-27
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| 20:52 | Merge in latest trunk changes. check-in: 8f30b095 user: dan tags: experimental | |
| 20:44 | Further changes to sqlite3VdbeRecordCompare(). check-in: 57089374 user: dan tags: experimental | |
| 15:11 | A better way of handling the USE_SYSTEM_SQLITE #define in shell.c. check-in: 51ce713c user: drh tags: trunk | |
| 15:04 | Add #defines to the command-line shell source code (shell.c) so that it can be imported directly into other projects (ex: Fossil) and used without editing. check-in: a6690400 user: drh tags: trunk | |
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2014-02-26
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| 21:35 | More efficient removal of duplicates in recursive queries using the UNION compound operator. check-in: 06c2db87 user: drh tags: trunk | |
| 13:53 | In the command-line shell for CSV import, if the lines are \r\n terminated and the last field is blank, make sure an empty string and not a "\r" string is imported. check-in: 9c2e7612 user: drh tags: trunk | |
| 02:26 | Improved handling of constants and especially constant functions in the ORDER BY clause of a query. Do not optimize out "ORDER BY random()". Fix for ticket [65bdeb9739605cc2296]. check-in: dca1945a user: drh tags: trunk | |
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2014-02-25
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| 21:55 | Do not allow temporary registers to be in use across an OP_Yield within a co-routine. Fix for ticket [8c63ff0eca81a9132d8]. check-in: 97a8c973 user: drh tags: trunk | |
| 21:01 | Attempt to speed up sqlite3VdbeRecordCompare() by various means. This code is in an interim state. check-in: 85206e0b user: dan tags: experimental | |
| 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 | |
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2014-02-24
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| 21:42 | Fix several small style/consistency issues with the previous check-in. check-in: 2477b3a2 user: mistachkin tags: trunk | |