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333 check-ins using file test/permutations.test version af3278cbea
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2015-08-13
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| 21:43 | Convert the hint expression of the CursorHint opcode into a string for display by EXPLAIN. (Leaf check-in: 12640cb222 user: drh tags: cursor-hints-displayP4) | |
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2014-07-15
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| 11:59 | Add simple tests for new sqlite3BtreeCursorHint() functionality. (check-in: 1efa6ed584 user: dan tags: cursor-hints) | |
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2014-07-14
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| 19:04 | In the expression passed to sqlite3BtreeCursorHint() for the inner loops of joins, replace any TK_COLUMN references to columns in the outer loops with TK_REGISTER expressions (Expr.iTable indicates the specific register containing the value). There are no automated tests for this yet. (check-in: f9dddd008c user: dan tags: cursor-hints) | |
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2014-01-30
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| 11:12 | Enhance the MSVC makefile for better debugging symbol support. (Closed-Leaf check-in: c723ec2784 user: mistachkin tags: msvcDebug) | |
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2014-01-29
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| 01:46 | Make sure that sqlite3SelectDup() initializes the nSelectRow of the duplicate Select object. (check-in: 5bb29b8210 user: drh tags: trunk) | |
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2014-01-28
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| 20:36 | Fix harmless compiler warnings in the showdb utility program. (check-in: 27c27daa33 user: drh tags: trunk) | |
| 18:53 | Fix a potential over-size and hence undefined shift operation. (check-in: 6379b07295 user: drh tags: trunk) | |
| 17:49 | Minor bugfix in main.c so that the library builds with SQLITE_OMIT_WSD defined. (check-in: 5e3b9ecc7b user: dan tags: trunk) | |
| 00:49 | Provide hints to the btree layer Next and Previous primitives to let them know if they can be no-ops if the underlying index is unique. (Leaf check-in: a2c347faf9 user: drh tags: branch-3.8.2) | |
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2014-01-27
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| 16:35 | Fix a couple of problems with new test scripts causing the permutations test to fail. (check-in: 48d736c0ee user: dan tags: trunk) | |
| 15:02 | Update some requirements marks to conform with improvements in the documentation. (check-in: be1acb610f user: drh tags: trunk) | |
| 14:19 | Fix a problem in pagerfault.test causing an assert() to fail. (check-in: ba8d2d507f user: dan tags: trunk) | |
| 13:58 | Fix (harmless) duplicate variable declaration. (check-in: 94ed9bc420 user: drh tags: trunk) | |
| 08:48 | Fix some problems in test scripts. No code changes. (check-in: 08acfc6587 user: dan tags: trunk) | |
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2014-01-25
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| 12:16 | Fix a problem causing SQLITE_OMIT_COMPOUND_SELECT builds to fail. (check-in: b30db0ac30 user: dan tags: trunk) | |
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2014-01-24
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| 22:58 | Fixes for various clang warnings. (check-in: 87bf60637e user: drh tags: trunk) | |
| 20:37 | Select collation sequences for ORDER BY expressions attached to recursive CTEs in the same way as they are selected for other compound SELECT statements. (check-in: 9554519c12 user: dan tags: trunk) | |
| 17:03 | Fix harmless compiler warnings in the Tcl interface. (check-in: 35bc81f5ad user: mistachkin tags: trunk) | |
| 16:57 | Add test cases for LIMIT and ORDER BY on recursive CTEs. (check-in: 67d6c42d44 user: dan tags: trunk) | |
| 16:36 | Use an unsigned integer to accumulate the string hash. Avoids compiler warnings. (check-in: b1824344ea user: drh tags: trunk) | |
| 15:42 | Add a few more CTE test cases to closure.test. (check-in: 1b6405d978 user: drh tags: trunk) | |
| 14:37 | Add test cases that compare the performance of the transitive_closure virtual table again common table expressions for walking a tree. (check-in: 9a23f020e8 user: drh tags: trunk) | |
| 11:16 | Add test cases showing the use of ORDER BY on a recursive query to control depth-first versus breath-first search of a tree. (check-in: 83b0b29165 user: drh tags: trunk) | |
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2014-01-23
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| 14:44 | Modifications to test files to omit any tests that intentionally access out-of-bounds locations in clang -fsanitize=address builds. (check-in: f4a701d55f user: dan tags: trunk) | |
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2014-01-22
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| 19:23 | Avoid an extra seek when inserting records into the epheremal index used to ensure that rows returned by UNION recursive queries are unique. (check-in: 72c4b3f07a user: dan tags: trunk) | |
| 18:31 | Fix harmless compiler warnings. (check-in: dea2ca6a15 user: drh tags: trunk) | |
| 18:16 | Change the WITH RECURSIVE implementation to use a queue instead of a pair of tables. Add support for ORDER BY, LIMIT, and OFFSET on recursive queries. (check-in: b6cea42006 user: drh tags: trunk) | |
| 18:07 | Add support for LIMIT and OFFSET in a recursive query. (Closed-Leaf check-in: 1945484e6b user: drh tags: cte-via-queue) | |
| 17:43 | Update the spellfix virtual table to optimize queries of the form "SELECT ... FROM tbl WHERE rowid=?". (check-in: a0ba55ff05 user: dan tags: trunk) | |
| 17:28 | Get ORDER BY working for recursive queries. (check-in: 37b343b018 user: drh tags: cte-via-queue) | |
| 13:35 | Add new SelectDest codes, SRT_Queue and SRT_DistQueue in anticipation of adding ORDER BY support on recursive queries. Factor out the recursive query code generator into a separate procedure. (check-in: 3eb5f9f8d6 user: drh tags: cte-via-queue) | |
| 10:22 | Fix a typo in a comment. No changes to code or tests. (check-in: cceacc0e79 user: dan tags: cte-via-queue) | |
| 00:23 | Remove an unnecessary parameter from selectInnerLoop(). Clean up comments. (check-in: 5e6c4a55f6 user: drh tags: cte-via-queue) | |
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2014-01-21
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| 22:25 | Change the recursive common table expression algorithm to use a queue instead of a pair of tables. Runs about 25% faster on the sudoku solver query. The OP_SwapCursors opcode is no longer required. The current implementation uses just a fifo, but the plan is to change it into a queue that will support ORDER BY and LIMIT in a recursive query. (check-in: b2671e1133 user: drh tags: cte-via-queue) | |
| 15:04 | Remove the undocumented requirement for applications that use an SQLITE_ENABLE_SQLLOG build to define a sqlite3_init_sqllog() function. (check-in: 5e43bf0132 user: dan tags: trunk) | |
| 01:13 | Fix a couple comment typos and one overly long line. No functional changes. (Closed-Leaf check-in: c57deced09 user: mistachkin tags: level-pseudocolumn) | |
| 00:19 | Add support for the LEVEL pseudo-column in the recursive part of a common table expression. LEVEL has the value of 1 on the first iteration and successively larger integer values of subsequent iterations. It cannot have a table qualifier. Actual columns named "level" can still be accessed by including the table name qualifier. (check-in: cc1cb32178 user: drh tags: level-pseudocolumn) | |
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2014-01-20
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| 19:55 | In where.c, do not allocate space in sqlite3_index_info structures for the internal WHERE clause "terms" generated to record column equivalencies. Fix for ticket [1a1a194d1e5f8]. (check-in: 7d9e22187d user: dan tags: trunk) | |
| 18:25 | Handle a few obscure problems that could manifest if a database corrupted in a certain way was written by a connection in the middle of a SELECT statement on the same db. (check-in: eba8a564e6 user: dan tags: trunk) | |
| 14:58 | Remove an unused #define and add an assert(), both associated with WITH logic. (check-in: a06235e0f6 user: drh tags: trunk) | |
| 14:17 | Do not run the tests in with2.test with SQLITE_OMIT_CTE builds. (check-in: 8a973912e9 user: dan tags: trunk) | |
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2014-01-18
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| 18:33 | Add a sudoku solver to the recursive query tests in with1.test. (check-in: 679eff8759 user: drh tags: trunk) | |
| 15:59 | Add extra test cases. No changes to code. (check-in: d38d485e58 user: dan tags: trunk) | |
| 15:22 | Add asserts() for a couple of unreachable conditions. Add the Mandelbrot Set query as a test case. (check-in: 2ad4583c0c user: drh tags: trunk) | |
| 08:27 | Avoid spurious "no such table" errors in statements of the form "INSERT INTO tbl WITH xxx AS (...) SELECT * FROM xxx". (check-in: cccff8a0b4 user: dan tags: trunk) | |
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2014-01-17
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| 20:36 | Add extra tests to with2.test. (check-in: eecc325afd user: dan tags: trunk) | |
| 18:34 | Minor simplification of error message text for a couple of errors associated with WITH clause processing. (check-in: 2031004d96 user: drh tags: trunk) | |
| 17:40 | Resolve table names within CTEs in the context in which the CTE is declared, not the context in which it is used. (check-in: a7323838bb user: dan tags: trunk) | |
| 16:19 | Add tests that verify that keywords WITH, WITHOUT, and RECURSIVE can still be used as table and column names. (check-in: 9ca18a0191 user: drh tags: trunk) | |
| 15:27 | Fix a compiler warning in selectPopWith(). (check-in: c8eb11635a user: drh tags: trunk) | |
| 15:15 | Add support for common table expressions (WITH clauses). (check-in: 0171e3bb4f user: dan tags: trunk) | |
| 14:59 | Fix some problems to do with WITH clauses and name resolution. (Closed-Leaf check-in: 6a549187ed user: dan tags: common-table-expr) | |
| 11:48 | Remove some code from resolve.c that was only required for recursive cte references in sub-queries. Also a stray "finish_test" command in pagerfault.test. (check-in: f68c6c4d36 user: dan tags: common-table-expr) | |
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2014-01-16
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| 22:40 | Add the ability for the authorizer callback to disallow recursive queries. (check-in: 9efc120a15 user: drh tags: common-table-expr) | |
| 21:59 | Tweaks to error message text. (check-in: 090a77d978 user: drh tags: common-table-expr) | |
| 21:02 | Improve the error messages used to report illegal recursive cte references. (check-in: 54eee9fe99 user: dan tags: common-table-expr) | |
| 18:34 | Allow only a single recursive reference in a recursive CTE. Also require that this reference is not part of a sub-query. (check-in: a296b73360 user: dan tags: common-table-expr) | |
| 15:31 | Always use available indices to optimize LIKE operators even if the pattern of the LIKE operator has a COLLATE modifier. This fixes an ineffiency that was introduced into 3.7.15 by check-in [8542e6180d4] on 2012-12-08. (check-in: 16bd54783a user: drh tags: trunk) | |
| 10:58 | Disable the flattening optimization if the parent query is the recursive part of a recursive CTE and the sub-query is a compound query. (check-in: 6bfa387e82 user: dan tags: common-table-expr) | |
| 04:37 | Merge trunk changes. Fix a possible NULL-pointer deference in WITH clause name resolution. (check-in: 7f953b568b user: drh tags: common-table-expr) | |
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2014-01-15
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| 20:10 | Remove an ALWAYS() that is no longer always true. (check-in: c95823cd45 user: drh tags: common-table-expr) | |
| 19:42 | Fixes so that SQLITE_OMIT_CTE builds work. (check-in: 3908e2ea2e user: dan tags: common-table-expr) | |
| 18:35 | Further comments on WITH-clause processing routines in select.c. (check-in: c948384dfd user: drh tags: common-table-expr) | |
| 18:23 | Add a header comment to the searchWith() routine. (check-in: d9ae0f5d9f user: drh tags: common-table-expr) | |
| 18:21 | Disable automatic indices on recursive CTE references. (check-in: 28aa6db8c8 user: dan tags: common-table-expr) | |
| 18:12 | When resolving names, consider a reference to a recursive CTE column as equivalent to a reference to the outermost name-context. This ensures that correlated sub-queries are correctly identified as such. (check-in: 61be2da0ae user: dan tags: common-table-expr) | |
| 15:27 | Return an error if a CTE specifies a different number of columns than its SELECT statement returns. (check-in: 9a514b50e4 user: dan tags: common-table-expr) | |
| 14:40 | Don't try to verify the schema of transient table (such as generated inside a WITH clause) when generating code for "IN table" operators. (check-in: 860aa93663 user: drh tags: common-table-expr) | |
| 14:17 | Disable the flattening optimization if the sub-query is a recursive CTE. (check-in: 9472f6d820 user: dan tags: common-table-expr) | |
| 02:40 | Use the user-supplied table name in WITH RECURSIVE tables as the internal name of the table and the name of the table in VDBE comments. (check-in: a29330238b user: drh tags: common-table-expr) | |
| 00:24 | Merge recent fixes from trunk. Cherrypick of [c43b59dac1], [a221aa82bb], [e1eba1fb09], and [1e131094b5]. (check-in: c697d2f83c user: mistachkin tags: branch-3.8.2) | |
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2014-01-14
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| 20:14 | Add code to handle recursive CTEs. (check-in: a5c2a54a07 user: dan tags: common-table-expr) | |
| 10:17 | Fix harmless compiler warning in LEMON. (check-in: f61a70589a user: mistachkin tags: trunk) | |
| 10:17 | For the Win32 VFS, defining winShmMutexHeld should be controlled by NDEBUG, not SQLITE_DEBUG. (check-in: 1e131094b5 user: mistachkin tags: trunk) | |
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2014-01-13
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| 20:38 | In the command-line shell, defend against a NULL-pointer dereference in the case where sqlite3_column_name() returns NULL (as might happen following an OOM error). (check-in: ac15455abc user: drh tags: trunk) | |
| 20:32 | For statements of just an unadorned VALUES clause, assign column names as "columnN" for increasing whole numbers N. (check-in: 260587d272 user: drh tags: trunk) | |
| 16:36 | Fix some memory leaks and crashes that could follow an OOM condition during WITH clause parsing. (check-in: 8839850c44 user: dan tags: common-table-expr) | |
| 15:12 | Add code to handle non-recursive CTEs in the same way as SQL views. (check-in: a26f399ba4 user: dan tags: common-table-expr) | |
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2014-01-11
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| 19:19 | Update the parser so that sub-queries and CTEs may have WITH clauses. (check-in: 704d3931b8 user: dan tags: common-table-expr) | |
| 13:22 | Parse common table expressions. But do not do anything with them (yet). (check-in: da98b7205e user: drh tags: common-table-expr) | |
| 12:52 | In LEMON, limit the size of the grammar file to 100MB. This ensures that the program will never experience integer overflow. To be doubly sure, use calloc() instead of malloc() when allocating arrays. (check-in: 29ba458d84 user: drh tags: trunk) | |
| 03:54 | Optimizations to the SQL language grammar that result in a small size reduction and speed increase. (check-in: cb5d1f83e0 user: drh tags: trunk) | |
| 03:27 | Add the "%token_class" directive to the LEMON parser generator. This opens up the possibility of simplifying the parser. Also remove all calls to sprintf(), strcpy(), and strcat() from LEMON to avoid compiler warnings on OpenBSD. (Aside: It is this change to avoid harmless compiler warnings that was the cause of the reason spat of bugs.) (check-in: 8eb48c04bd user: drh tags: trunk) | |
| 03:13 | Add the "%token_class" directive to the LEMON parser generator. This opens up the possibility of simplifying the parser. Also remove all calls to sprintf(), strcpy(), and strcat() from LEMON to avoid compiler warnings on OpenBSD. (Closed-Leaf check-in: 4e4483b2d4 user: drh tags: buggy-lemon) | |
| 03:06 | In LEMON, fix a bug in the text formatter introduced by the previous commit. Also add the new "%token_class" directive for defining symbolic names that stand any one of a collection of tokens. (Closed-Leaf check-in: da7890ca6b user: drh tags: lemon-updates) | |
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2014-01-10
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| 23:21 | Do not use sprintf(), strcpy() or strcat() in the implementation of the lemon parser generator tool, to avoid compiler warnings in OpenBSD. (check-in: e43c522dde user: drh tags: lemon-updates) | |
| 20:51 | Remove unused structure definition from parse.y. (check-in: 7f1e7ae313 user: drh tags: trunk) | |
| 20:46 | Allow a VALUES clause to be used any place that a SELECT statement can be used. (check-in: c9ea7d199f user: drh tags: trunk) | |
| 20:38 | Fix CREATE TABLE ... AS so that it works with column names that are empty strings. (check-in: 632045f21c user: drh tags: trunk) | |
| 16:40 | Fix another harmless compiler warning in unixUnfetch(). (check-in: 0484549bb8 user: dan tags: trunk) | |
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2014-01-09
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| 13:39 | Fix harmless compiler warning in unixUnfetch(). (check-in: 618f248f4e user: drh tags: trunk) | |
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2014-01-06
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| 18:32 | Start a new experimental branch for support of Oracle-style CONNECT BY syntax. (Closed-Leaf check-in: 4365ddd62d user: drh tags: connect-by) | |
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2014-01-04
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| 20:00 | Fix an typo that breaks the build when SQLITE_ENABLE_TREE_EXPLAIN is defined. (check-in: f461e2b397 user: drh tags: trunk) | |
| 19:58 | Add the usual "fts3" prefix to new static method setEstimatedRows() in fts3.c. This fixes a problem when compiling the amalgamation, as the r-tree module also contains a static method named setEstimatedRows. (check-in: d6fcfc8890 user: dan tags: trunk) | |
| 19:27 | Avoid redundant register loads during index key generation when doing a DELETE or INTEGRITY_CHECK on a table with multiple indices. (check-in: 8f6e6149a1 user: drh tags: trunk) | |
| 16:49 | Omit OP_Close operations that occur immediately prior to OP_Halt and which cannot be jumped over. (check-in: 874b7e9999 user: drh tags: trunk) | |
| 15:17 | Improvements to the column-cache for nested AND/OR operators. (check-in: 4e725f5313 user: drh tags: trunk) | |
| 14:46 | Have FTS assign extremely high costs to plans that feature unusable MATCH constraints. This discourages the planner from choosing such plans, which lead to "unable to use function MATCH in the requested context" errors. (check-in: fa8be488a3 user: dan tags: trunk) | |
| 14:42 | Instead of having the planner ignore plans with unusable MATCH constraints, have FTS assign extremely high costs to such plans in order to discourage the planner from using them. (Closed-Leaf check-in: 24f84b3813 user: dan tags: avoid-unusable-match) | |
| 14:16 | Have the planner detect cases where a MATCH constraint is applied to a virtual table, and ignore any plans that do not allow the virtual table implementation to implement the MATCH filtering. (check-in: 19f3208b26 user: dan tags: avoid-unusable-match) | |
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2014-01-03
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| 16:03 | Avoid some unnecessary OP_SCopy operations when inserting into a table with multiple indices. (check-in: 429018b19c user: drh tags: trunk) | |
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2014-01-02
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| 21:05 | Try to factor constant subcomponents of the WHERE clause out of the loop. (check-in: 9d05777fe2 user: drh tags: trunk) | |
| 19:35 | Avoid unnecessary affinity transformations when building indices using data from a table. (check-in: 10d851353c user: drh tags: trunk) | |
| 17:57 | Be more aggressive in optimizing constant conditional expressions. (check-in: b7e39851a7 user: drh tags: trunk) | |
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2014-01-01
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| 15:18 | Try to detect process ID changes due to fork() calls in os_unix.c and reset the PRNG when a process ID change is detected. (check-in: e1eba1fb09 user: drh tags: trunk) | |
| 14:00 | Enhance sqlite3_randomness(N,P) such that it resets the internal PRNG if N is less than 1. Subsequent calls to sqlite3_randomness() will reinitialize the internal PRNG by calling the xRandomness() method of the default VFS. (check-in: a221aa82bb user: drh tags: trunk) | |
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2013-12-24
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| 12:04 | Add -I. to the main.mk makefile for building sqlite3.o and speedtest1. (check-in: cc72c5aec7 user: drh tags: trunk) | |
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2013-12-23
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| 19:09 | Move elements of the Vdbe object that are only used during statement preparation out into the Parse object. (check-in: c289a253c0 user: drh tags: trunk) | |
| 15:35 | Make sure the WhereLoop.aLTerm[] array is large enough when processing the skip-scan optimization. Fix for ticket [520070ec7fbaac]. (check-in: ac5852d640 user: drh tags: branch-3.8.2) | |
| 11:33 | Remove a stray tab character. (check-in: 25b8a1c9ba user: drh tags: trunk) | |
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2013-12-22
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| 22:45 | Remove a condition that is always in the logic that handles reading default values for columns. (check-in: 895af097e7 user: drh tags: trunk) | |
| 20:44 | Make sure the WhereLoop.aLTerm[] array is large enough when processing the skip-scan optimization. Fix for ticket [520070ec7fbaac]. (check-in: 46d040591f user: drh tags: trunk) | |
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2013-12-21
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| 17:14 | Fix speedtest1.c so that in --explain mode it only outputs non-explain text for DDL statements. (check-in: 2d2b3c4951 user: drh tags: trunk) | |
| 17:07 | Avoid compiler warnings by only enabling sqlite3ErrName() when SQLITE_TEST is defined. (check-in: 862228e505 user: drh tags: trunk) | |
| 16:06 | Fix harmless compiler warnings in FTS4. This involved corrupting Martin Porter's beautifully written and elegant stemmer code, making it a little less beautiful and a little less elegant. Today is a sad day. But the warnings from GCC grow increasingly verbose and irksome with each new release and so something had to be done. (check-in: df05679838 user: drh tags: trunk) | |
| 15:46 | Fix the ".echo on" dot-command of the shell so that it echos comments in addition to SQL statements and dot-commands. Add the --explain option to speedtest1 so that the output can be piped into the command-line shell to show nicely-formated VDBE code for the entire test. (check-in: 96397263f9 user: drh tags: trunk) | |
| 00:04 | Add a case to speedtest1.c that demonstrates the need to factor OP_Column operators out of inner loops. (check-in: 69a17336fd user: drh tags: trunk) | |
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2013-12-20
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| 18:57 | Fix compiler harmless warnings in tclsqlite.c that appeared with GCC 4.8.x. (check-in: d93ae6833a user: drh tags: trunk) | |
| 18:44 | Code simplification in sqlite3GenerateIndexKey() by making use of a subroutine found over in expr.c. (check-in: 0026d33553 user: drh tags: trunk) | |
| 15:59 | Combine adjacent single-register OP_Copy instructions into a single multi-register OP_Copy, where possible. Fix the Synopsis comment for multi-register OP_Copy instructions to show the correct register ranges. (check-in: 2ae22dc0cb user: drh tags: trunk) | |
| 14:48 | Allow any arbitrary expression as the filename in an ATTACH statement, including functions and subqueries. (check-in: df70a1f303 user: drh tags: trunk) | |
| 13:11 | Simplify the accumulator reset for aggregate query processing so that it uses a single multi-register OP_Null rather than a separate OP_Null for each register. (check-in: 2c7fd9b043 user: drh tags: trunk) | |
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2013-12-19
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| 17:04 | Do not inject OOM faults into SQLITE_FCNTL_COMMIT_PHASE_TWO file-control invocations. It causes problems for test scripts. (check-in: 8eb28d23e3 user: dan tags: trunk) | |
| 16:26 | Make sure errors encountered while initializing extensions such as FTS4 get reported out from sqlite3_open(). This fixes a bug introduced by check-in [9d347f547e7ba9]. Also remove lots of forgotten "breakpoint" commands left in test scripts over the years. (check-in: ca3fdfd419 user: drh tags: trunk) | |
| 14:34 | Remove an unneeded column-cache flush in aggregate SELECT and an unreachable branch in the INSERT logic. (check-in: ffa092e13b user: drh tags: trunk) | |
| 02:56 | Omit an unnecessary OP_Null opcode from UPDATE. (check-in: 72d111336c user: drh tags: trunk) | |
| 02:23 | Omit one or more pointless instructions that occur in between OP_NoConflict and OP_Halt. (check-in: 61e2f3575c user: drh tags: trunk) | |
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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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| 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) | |
|
2013-12-11
| ||
| 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) | |
|
2013-12-10
| ||
| 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) | |
|
2013-12-09
| ||
| 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) | |
|
2013-12-08
| ||
| 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) | |
|
2013-12-07
| ||
| 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) | |
| 12:29 | Actually look at i-node numbers to determine whether or not the database file has moved. (check-in: 2b1884dc14 user: drh tags: detect-moved-db) | |
|
2013-12-06
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| 23:25 | Performance optimization to the moveToRoot() subroutine in btree.c. (check-in: b5842a70f8 user: drh tags: trunk) | |
| 22:45 | Use memcmp() instead of the BINARY collating function where possible, for a performance boost. (check-in: c5a3a1af3c user: drh tags: trunk) | |
| 22:44 | Remove some commented-out code from sqlite3BtreeMovetoUnpacked() to try to make it more readable. (check-in: 2d62d1131f user: drh tags: trunk) | |
| 19:58 | Add the SQLITE_READONLY_DBMOVED error code to the sqlite3ErrName() function. (check-in: 7789f801d7 user: mistachkin tags: detect-moved-db) | |
| 17:23 | Only error out on a database file move when attempting to start a write transaction. Assume read transactions are still safe. And make the error SQLITE_READONLY_DBMOVED instead of SQLITE_IOERR_NODB. (check-in: 28348f2ada user: drh tags: detect-moved-db) | |
| 15:37 | Add code to detect if the database file is moved or deleted out from under SQLite and return an SQLITE_IOERR_NODB. (check-in: 8759a8e4d8 user: drh tags: detect-moved-db) | |
| 14:53 | Version 3.8.2 (check-in: 27392118af user: dan tags: trunk, release, version-3.8.2) | |
|
2013-12-05
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| 17:12 | Fix harmless compiler warnings and improve the MSVC makefile. (check-in: c632567063 user: drh tags: trunk) | |
| 16:41 | Fix two potential (and apparently harmless) shift overflows discovered by the -fcatch-undefined-behavior option of clang. (check-in: e19eead8c9 user: drh tags: trunk) | |
|
2013-12-03
| ||
| 23:33 | Make use of the CC nmake macro even when cross-compiling (with MSVC). (Closed-Leaf check-in: aae7b30ebd user: mistachkin tags: memTests) | |
| 22:33 | Fix harmless compiler warnings. (check-in: a12d214ecc user: mistachkin tags: memTests) | |
| 22:32 | Add memory subsystem related defines to the compile-time options list. (check-in: 52a44146dd user: mistachkin tags: memTests) | |
| 19:49 | Remove a branch in STAT4 logic that is no longer reachable after the previous change. (check-in: eca7d3f161 user: drh tags: trunk) | |
| 19:16 | Fix a possible (and probably harmless) uninitialized variable in STAT3/4. (check-in: 33ad4f9147 user: drh tags: trunk) | |
| 18:26 | Fix an alignment problem in the stat3/stat4 code affecting 32-bit platforms. (check-in: 14f9bc7901 user: dan tags: trunk) | |
| 17:09 | Fix a typo in fts3varint.test preventing the valgrind permutation test from running. (check-in: b654a4ec72 user: dan tags: trunk) | |
| 10:35 | Modify test file conflict2.test so that it works with the "inmemory_journal" permutation. (check-in: e4164fd8f7 user: dan tags: trunk) | |
| 10:14 | Remove an unnecessary branch from the UPDATE logic - one that was also unreachable except following an OOM on x64. (check-in: 72f9727714 user: drh tags: trunk) | |
| 09:49 | Add a "database_may_be_corrupt" directive to test file fuzz3.test. Reformat an assert() statement in vdbeaux.c to make its intent clearer. (check-in: 9d8a0e1321 user: dan tags: trunk) | |
| 02:52 | Change some unreachable test conditions to NEVER(). (check-in: 7d99858bec user: drh tags: trunk) | |
| 00:11 | Fix a harmless compiler warning on MacOS. (check-in: 74328de1d7 user: drh tags: trunk) | |
|
2013-12-02
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| 21:25 | Another #if SQLITE_VERSION_NUMBER macro in speedtest1.c for compatibility with older versions of SQLite. (check-in: bc8eacc7f7 user: drh tags: trunk) | |
| 01:24 | Still more #if SQLITE_VERSION_NUMBER macros in test/speedtest1.c to enable compilation against older versions of SQLite. (check-in: 4b20cf4206 user: drh tags: trunk) | |
|
2013-12-01
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| 18:10 | Add some #if SQLITE_VERSION_NUMBER macros to test/speedtest1.c in order to make it compatible with older versions of SQLite so that it can be used for historical speed comparisons. (check-in: a9e1627ae7 user: drh tags: trunk) | |
| 01:18 | Fix typos in the header comment on the sqlite3Atoi64() routine. (check-in: c85e0c546e user: drh tags: trunk) | |
|
2013-11-30
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| 12:49 | Detect a corrupt UnpackedRecord and return SQLITE_CORRUPT prior to calling sqlite3BtreeMovetoUnpacked(). (check-in: 55ec474db8 user: drh tags: trunk) | |
|
2013-11-29
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| 15:39 | Change the name of the CORRUPTIBLE macro to CORRUPT_DB. (check-in: f865be10e8 user: drh tags: trunk) | |
| 15:06 | Add a new sqlite3_test_control() that indicates that database files are always well-formed. Use this during testing to enable assert() statements that prove conditions that are always true for well-formed databases. (check-in: 15e4f63d1f user: drh tags: trunk) | |
|
2013-11-28
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| 19:28 | Update a few test cases to account for the new error message formats. (check-in: 65a5bce3ff user: dan tags: trunk) | |
| 14:14 | Remove an assert() condition that may not be true if the database file is corrupt. Update a test case in corruptC.test. (check-in: 0bcf75516f user: dan tags: trunk) | |
| 06:17 | Fix a test case in temptrigger.test so that it works in auto-vacuum mode. (check-in: c3b7a0e61f user: dan tags: trunk) | |
|
2013-11-27
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| 21:07 | Remove unnecessary local variables from sqlite3VdbeExec() in order to reduce stack-space requirements of that routine. (check-in: 81891288d9 user: drh tags: trunk) | |
| 19:17 | Update documentation of sqlite3_column() for clarity. Update evidence marks on test cases. (check-in: ec2d47a1db user: drh tags: trunk) | |
| 18:00 | Fix spelling typo in speedtest1.exe. (check-in: ae90300e8e user: mistachkin tags: trunk) | |
| 14:50 | Fix some harmless compiler warnings in speedtest1.exe. (check-in: c75f561f33 user: drh tags: trunk) | |
| 13:48 | Additional test cases for skip-scan. (check-in: ce70803f5e user: drh tags: trunk) | |
| 13:24 | Make sure the colWidth array is correctly initialized in the ".explain" command of the shell. (check-in: ceebcdcaf1 user: drh tags: trunk) | |
| 04:22 | Lower the threshold for using skip-scan from 50 to 18, based on experiments that show that 18 is the approximate break-even point for a variety of schemas. (check-in: 83c0bb9913 user: drh tags: trunk) | |
| 04:00 | Avoid using the GetVersionEx functions if they are considered deprecated. (check-in: afdca29966 user: mistachkin tags: trunk) | |
| 03:01 | Avoid using the GetVersionEx functions if they are considered deprecated. (Closed-Leaf check-in: 0ea9e4722b user: mistachkin tags: vs2013) | |
| 01:23 | Add additional test cases for skip-scan. (check-in: 1ae4915d4d user: drh tags: trunk) | |
| 00:45 | Add additional test cases and requirements evidence marks for WITHOUT ROWID. (check-in: b408d78810 user: drh tags: trunk) | |
|
2013-11-26
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| 23:27 | Make sure the update hook is not invoked for WITHOUT ROWID tables, as the documentation specifies. This bug was found while adding requirements marks, so a few extraneous requirements marks are included in this check-in. (check-in: 0978bac6b8 user: drh tags: trunk) | |
| 22:46 | Add requirements test cases for determining when an expression is true and when it is false. (check-in: 838654e563 user: drh tags: trunk) | |
| 21:18 | Changing the CAST behavior of REAL values actually changed a documented requirement. So we also have to change the requirement evidence text to match. (check-in: d84aa44e39 user: drh tags: trunk) | |
| 18:22 | Reduce the amount of code used to implement OP_SeekGe and similar. (check-in: 8b12a15a2a user: dan tags: trunk) | |
| 16:51 | Fix a possible NULL pointer deference in the wordcount test program. (check-in: 6f91dca0de user: drh tags: trunk) | |
| 16:48 | Change tclsqlite3.c so that it never invokes ctype macros with signed character arguments. (check-in: c07caabf23 user: drh tags: trunk) | |
| 16:20 | Do not try to run the atof1.test test script on ARM hardware which lacks the "long double" type. (check-in: fafca560f2 user: drh tags: trunk) | |
| 15:45 | Change the REAL-to-INTEGER casting behavior so that if the REAL value is greater than 9223372036854775807.0 then it is cast to the latest possible integer, 9223372036854775807. This is sensible and the way most platforms work in hardware. The former behavior was that oversize REALs would be cast to the smallest possible integer, -9223372036854775808, which is the way Intel hardware works. (check-in: 6f53fc7106 user: drh tags: trunk) | |
| 01:13 | Fix comment. (check-in: 8364af392d user: mistachkin tags: winHdr) | |
| 01:00 | Further work on Windows header file reform. (check-in: 540f552516 user: mistachkin tags: winHdr) | |
| 00:33 | Merge updates from trunk. (check-in: c5ab437875 user: mistachkin tags: winHdr) | |
| 00:28 | Better support for UTF-8 paths on Cygwin. (check-in: 9954327c0f user: mistachkin tags: trunk) | |
|
2013-11-25
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| 23:42 | Add SQLITE_CONFIG_WIN32_HEAPSIZE option to configure the maximum isolated heap size on Windows. (check-in: 914e6c9d88 user: mistachkin tags: trunk) | |
| 22:24 | Change a while-loop into a do-loop in sqlite3VdbeRecordCompare() and add an assert() to verify that the do-loop really is appropriate. This gives about a 10% performance boost in that routine, or a 0.9% boost overall. (check-in: 011a6be439 user: drh tags: trunk) | |
| 21:49 | Clarify docs for the SQLITE_CONFIG_WIN32_HEAPSIZE option. (Closed-Leaf check-in: 51e876074a user: mistachkin tags: winHeapSize) | |
| 21:41 | Remove a NEVER() from a branch that is now reachable during OOM faults. (check-in: 18bdcb05c2 user: drh tags: trunk) | |
| 20:50 | Optimizations to the sqlite3BtreeMovetoUnpacked() routine in storage engine making it about 17.8% faster, which in turn makes SQLite over 1.2% faster overall. (check-in: 032e89934f user: drh tags: trunk) | |
| 20:14 | Return an SQLITE_CORRUPT error if the content size field of a table record extends off the end of a page. (Closed-Leaf check-in: b48c4e4021 user: drh tags: btree-optimization) | |
| 17:38 | Uses shifts rather than division for arithmetic on the cell indices, since those indices are always non-negative. (check-in: 5bf2a3feeb user: drh tags: btree-optimization) | |
| 16:52 | Optimize the skipping of the payload size field when doing a binary search for a rowid. (check-in: 55e5bfa231 user: drh tags: btree-optimization) | |
| 16:23 | Arrange for sqlite3BtreeMovetoUnpacked() to always leave the cursor cell parse cache invalidated. This fixes issues with previous check-ins on this branch and also runs faster. (check-in: a74675607f user: drh tags: btree-optimization) | |
| 15:01 | More optimizations to sqlite3BtreeMovetoUnpacked(). But there are failures in TH3. Committing this intermediate state to facilitate bisecting. (check-in: f80497be44 user: drh tags: btree-optimization) | |
| 14:10 | More improvements to sqlite3BtreeMovetoUnpacked() performance. (check-in: 8868069823 user: drh tags: btree-optimization) | |
| 09:37 | Correct line-endings in the new header file. (check-in: 94219b9f1f user: mistachkin tags: winHdr) | |
| 09:36 | Initial work on isolating usage of the Windows header file. (check-in: 0d42c6b830 user: mistachkin tags: winHdr) | |
| 02:38 | Performance improvements in sqlite3BtreeMovetoUnpacked(). (check-in: d0fb7acea7 user: drh tags: btree-optimization) | |
|
2013-11-24
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| 23:18 | Better support for UTF-8 paths on Cygwin. (Closed-Leaf check-in: 484162b6e5 user: mistachkin tags: cygUtf8) | |
| 01:14 | Add the --scratch parameter to speedtest1. Improved error messages when misconfiguring memory parameters in speedtest1. (check-in: 8f3c767a30 user: drh tags: trunk) | |
| 00:46 | The MEMSYS5 algorithm does not have to return the block with the lowest address. Any block of the appropriate size will do. Use the first block found on the freelist for the appropriate size for a performance improvement. (check-in: 12e612e8e7 user: drh tags: trunk) | |
|
2013-11-23
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| 22:45 | A much simpler fix is to simply change MEMSYS5 so that it takes any free block of the appropriate size (the first on the list of free blocks) rather than searching for the one with the smallest address. This is also faster than using the min-heap algorithm. Need to research to verify that the allocator still satisfies the Robson proof, however. (Closed-Leaf check-in: 8191b51212 user: drh tags: memsys5-performance) | |
| 21:30 | Use a heap-based primary queue rather than a linked list to store the available free blocks of each size in MEMSYS5, since this provides faster access to the first available block. (Closed-Leaf check-in: 7d2cdfad0e user: drh tags: memsys5-performance) | |
| 21:29 | Add newlines at the end of some error messages in speedtest1. (check-in: 6b98f0af7a user: drh tags: trunk) | |
| 11:45 | Report errors from sqlite3_exec() and sqlite3_config() in speedtest1. Fix a bug in the main testing logic that was found by these error reports. (check-in: 659f1a98ae user: drh tags: trunk) | |
| 04:32 | Fix the order of parameters to SQLITE_CONFIG_PAGECACHE in the speedtest1.exe program. (check-in: dbe85ef6d2 user: drh tags: trunk) | |
| 04:22 | Adjust MSVC makefile to avoid using forward slashes in file names. (check-in: facf6deaa6 user: mistachkin tags: trunk) | |
| 04:16 | Add the "speedtest1.exe" test program. (check-in: fb6f0c6d77 user: drh tags: trunk) | |
| 00:27 | Add experimental sqlite3_config option to control the native Win32 heap size. (check-in: f09f11e94b user: mistachkin tags: winHeapSize) | |
|
2013-11-22
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| 21:32 | Fix harmless compiler warning. (check-in: f336c18fb7 user: mistachkin tags: trunk) | |
| 00:49 | Minor correction to the batch build tool for MSVC. (check-in: 22144c9df2 user: mistachkin tags: trunk) | |
|
2013-11-21
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| 23:37 | Fix a harmless clang warning in the command-line shell. (check-in: 3d47a556f0 user: drh tags: trunk) | |
| 22:02 | Slight change to the --timer output on wordcount for better display on windows: Avoid showing the full pathname of the executable. (check-in: b9e047b9e3 user: drh tags: trunk) | |
| 21:59 | Changes some offset and amount parameters from "int" to "u32" to avoid harmless signed/unsigned comparison warnings. (check-in: 4e8c5d0795 user: drh tags: trunk) | |
| 21:40 | Modify wordcount so that timer information appears on standard error instead of standard output. Rename the run-wordcount.bash script to run-wordcount.sh and simplify it so that it stands a better chance of running on non-GNU systems. (check-in: 586c11ed7c user: drh tags: trunk) | |
| 21:23 | Do not reuse factored constants that might have had their encodings changed. (check-in: 487f20366c user: drh tags: trunk) | |
| 20:48 | Fix the code generator to honor turning off constant expression factoring. (check-in: 882622662d user: drh tags: trunk) | |
| 19:27 | Add the --timer option to the wordcount test program. (check-in: a89fdf8755 user: drh tags: trunk) | |
| 19:05 | Remove a test from sqlite3VdbeMemFromBtree() which was unnecessary, and after the recent OP_Column refactoring, unreachable. (check-in: 23667f3ba0 user: drh tags: trunk) | |
| 17:24 | Make sure the OP_Next and OP_NextIfOpen opcodes are numbered close together for efficiency in switch() statements. OP_Prev and OP_PrevIfOpen too. (check-in: d4ccf0f5c6 user: drh tags: trunk) | |
| 16:08 | When one or more arguments to a function are constants, try to factor out just those arguments into initialization code. (check-in: 50d350abbc user: drh tags: trunk) | |
| 14:44 | Remove the obsolete TK_CONST_FUNC token type. (check-in: 9b4217f055 user: drh tags: trunk) | |
| 14:33 | Add the ability to factor constant functions out of inner loops. But do not factor out non-constant functions, like random(). (check-in: 1b0f779e19 user: drh tags: trunk) | |
| 04:18 | Another improvement to OP_Function and an improvement to OP_Move. (check-in: 70b056fb6f user: drh tags: trunk) | |
| 03:43 | A simple change to the OP_Function opcode improves overall performance by about 0.5%. (check-in: b890eefd57 user: drh tags: trunk) | |
| 03:12 | Performance optimization to the OP_Next and OP_Prev opcodes. (check-in: ecaac28a2e user: drh tags: trunk) | |
| 01:33 | Refactor the OP_Column opcode to make it clearer and easier to maintain. Overall, performance tests show about a 1% speed increase with this change. (check-in: 972881c6d3 user: drh tags: trunk) | |
| 01:04 | Reduce the size of VdbeCursor again, this time without a performance hit. (Closed-Leaf check-in: 933939932c user: drh tags: OP_Column-refactor) | |
| 00:10 | Unpack some fields, adding some space back to the VdbeCursor object, in order to help the code to run a little faster. (check-in: f8d5efcd7b user: drh tags: OP_Column-refactor) | |
|
2013-11-20
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| 21:51 | Reduce the size of the VdbeCursor object from 144 to 120 bytes. (check-in: 5f9d506885 user: drh tags: OP_Column-refactor) | |
| 20:58 | Improved comments on the OP_Column changes. Optimize out loading of overflow pages for content with zero length. Add test cases for the latter. (check-in: 0e05679db7 user: drh tags: OP_Column-refactor) | |
| 19:28 | Further performance tweaks to OP_Column. (check-in: 0e3f5df695 user: drh tags: OP_Column-refactor) | |
| 17:25 | Refactoring the OP_Column opcode for improved performance and maintainability. (check-in: 7c914e3997 user: drh tags: OP_Column-refactor) | |
| 02:53 | Simplifications to the VdbeCursor object. (check-in: 5562cd343d user: drh tags: trunk) | |
| 00:59 | Performance improvement for the OP_MustBeInt opcode in the VDBE. (check-in: 96a65388e7 user: drh tags: trunk) | |
|
2013-11-19
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| 18:17 | Fix a harmless MSVC compiler warning. (check-in: 6cc023bb29 user: drh tags: trunk) | |
| 13:55 | Minor performance improvement to sqlite3SerialTypeGet(). (check-in: 17e8524fc0 user: drh tags: trunk) | |
| 12:33 | Change Noop-comments in where.c into Module-comments, so that they are omitting without SQLITE_ENABLE_MODULE_COMMENTS. (check-in: 3e577f4018 user: drh tags: trunk) | |
| 02:34 | Avoid seeking on the main data table during the first loop of an UPDATE if an index is sufficient to check the WHERE clause. (check-in: 57158d9daf user: drh tags: trunk) | |
| 00:31 | Fix an requirement mark in a test script so that it matches the typo-corrected requirement. No changes to code. (check-in: 072412d5e3 user: drh tags: trunk) | |
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2013-11-18
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| 19:32 | Add comments identifing where the skip-scan option is decided in the query planner, to aid in tuning that decision. No changes to code. (check-in: e9df04cec4 user: drh tags: trunk) | |
| 18:48 | Fix documentation typos. No changes to code. (check-in: 7caeb09c52 user: drh tags: trunk) | |
| 11:20 | Fix harmless compiler warnings from clang scan-build. (check-in: 8d002740bf user: drh tags: trunk) | |
| 08:41 | Fix a problem with the shell tool EXPLAIN indentation code and VDBE sub-programs. (check-in: 9c8d685625 user: dan tags: trunk) | |
| 03:11 | Enable the ONEPASS optimization for DELETE, for both rowid and WITHOUT ROWID tables. (check-in: 44a07afdd9 user: drh tags: trunk) | |
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2013-11-17
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| 02:42 | Make sure one-pass DELETE for WITHOUT ROWID tables correctly positions the PRIMARY KEY cursor. Make the same fix for UPDATE. (Closed-Leaf check-in: 6bd5750b7d user: drh tags: optimize-delete) | |
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2013-11-16
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| 23:16 | Fix a couple of minor problems with the new delete logic. (check-in: a11243f840 user: drh tags: optimize-delete) | |
| 23:03 | Fix an OOM-recovery problem in the DELETE code generator. (check-in: dc7be158b8 user: drh tags: optimize-delete) | |
| 22:48 | Combine the rowid and WITHOUT ROWID paths for DELETE into a single path. (check-in: c4734b881a user: drh tags: optimize-delete) | |
| 20:45 | The one-pass optimization is now working for DELETE on WITHOUT ROWID tables. (check-in: e4d220a381 user: drh tags: optimize-delete) | |
| 20:13 | Enhance the DELETE logic so that it can make use of WHERE_ONEPASS_DESIRED for rowid tables. (check-in: 8f479a7275 user: drh tags: optimize-delete) | |
| 15:35 | Fully constraint the ORDER BY on the top-10 line of the --summary output from the wordcount test program. Add the run-wordcount.bash script for running wordcount in various configurations. (check-in: 7edf39eb93 user: drh tags: trunk) | |
| 14:03 | Avoid unnecessary OP_IfNull checks when doing a range query where there is a constraint on the lower bound of the range. (check-in: de08a7e7ab user: drh tags: trunk) | |
| 13:55 | Simplification and performance improvement to the logic that factors constant expressions ouf of inner loops. (check-in: ee9353fdf3 user: drh tags: trunk) | |
| 12:56 | Fix testcase misc7-16 so that it works with the new UNIQUE constraint error message format. (check-in: c7f2ed9f44 user: drh tags: trunk) | |
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2013-11-15
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| 20:06 | Add ALWAYS and NEVER macros to currently unreachable but important branches in sqlite3ExprCompare(). (Closed-Leaf check-in: cee835fe90 user: drh tags: expr-codegen-enhancement) | |
| 19:00 | Merge the operator comment fixes from trunk. (check-in: 9f14f55c8a user: drh tags: expr-codegen-enhancement) | |
| 18:58 | Fix comments on the OP_Divide and OP_Remainder operators, especially the "Synopsis:" comment, so that they agree with the actual implementation. (check-in: cc17f1f05f user: drh tags: trunk) | |
| 18:15 | Changes to make the new constant expression factoring logic more general and more testable. (check-in: d10fb49a92 user: drh tags: expr-codegen-enhancement) | |
| 16:48 | Add test cases for INSERT INTO ... DEFAULT VALUES on tables with numeric constants in CHECK constraints. (check-in: 79ec485b54 user: drh tags: expr-codegen-enhancement) | |
| 15:52 | Improvements to the Expr comparison routine to make it more general. Improvements to unary-minus code generation so that it can make use of a global constant register with a zero value. (check-in: 835be656bb user: drh tags: expr-codegen-enhancement) | |
| 13:12 | Add the --query option to the wordcount test program. (check-in: 5960d11eba user: drh tags: trunk) | |
| 12:41 | Simplify the range scan code generate while also avoiding an unnecessary OP_Affinity opcode. (check-in: 372686bfbb user: drh tags: expr-codegen-enhancement) | |
| 03:30 | Merge EXPLAIN fixes from trunk. (check-in: cd579727b1 user: drh tags: expr-codegen-enhancement) | |
| 03:21 | Fix a typo in the "synopsis" for the OP_Lt opcode that causes an incorrect comment to be added to EXPLAIN output. (check-in: d99a30a25d user: drh tags: trunk) | |
| 03:16 | Another adjustment to the EXPLAIN indentation logic, in order to deal with the sorter loop on a CREATE INDEX statement. (check-in: cbe85cc2a9 user: drh tags: trunk) | |
| 01:10 | Rework the logic that factors constant expressions out of inner loops, making it both simpler and faster. (check-in: 8dc5c76c76 user: drh tags: expr-codegen-enhancement) | |
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2013-11-14
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| 23:59 | Adjust the command-line shell EXPLAIN indentation logic to handle the second loop of an UPDATE that reads out a RowSet. (check-in: ea141a9b87 user: drh tags: trunk) | |
| 19:34 | Remove an unused local variable. (check-in: 10d5922638 user: drh tags: trunk) | |
| 15:35 | An experimental virtual tables for showing the content of internal schema objects. (Leaf check-in: d1fbc6ca18 user: drh tags: schema2-vtab) | |
| 00:09 | Simplification to the progress callback check. One branch removed. (check-in: 24ef16548e user: drh tags: trunk) | |
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2013-11-13
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| 23:48 | Make sure the progress callback is invoked prior to an SQLITE_ROW return if it is overdue to be called. (check-in: 21f59b04f7 user: drh tags: trunk) | |
| 20:46 | Merge the skip-scan enhancement into trunk. (check-in: b0bb975c09 user: drh tags: trunk) | |
| 19:01 | Import the "PRAGMA vdbe_eqp" enhancement and the enhanced EXPLAIN formatting the shell from trunk. Fix a bug in skip-scan and add a test case to prevent a regression. (Closed-Leaf check-in: f668616a29 user: drh tags: skip-scan) | |
| 18:35 | In the shell tool, if an "EXPLAIN" command is executed in ".explain on" mode, attempt to automatically indent the bodies of loops in the output VDBE program. (check-in: e7d34ec681 user: dan tags: trunk) | |
| 17:58 | Add the "PRAGMA vdbe_eqp" command, only available with SQLITE_DEBUG. Simplify some of the other debugging logic. (check-in: 8ce33f4c81 user: drh tags: trunk) | |
| 17:24 | Add VDBE comments to the beginning and end of skip-scan loops. (check-in: 0c85d93b52 user: drh tags: skip-scan) | |
| 16:58 | Improve the way that skip-scan loops are constructued. Add test cases. Improved the scoring of skip-scan loops. (check-in: 5e75ab9388 user: drh tags: skip-scan) | |
| 15:32 | Add test cases for skip-scan. Enhance "do_test" so that if the expected result is of the form "/*..*/" or "~/*..*/" it treats the expected result as a glob pattern rather than as a regular expression. Fix a bug in ANALYZE result loading associated with WITHOUT ROWID tables. (check-in: d3e6e9b2a7 user: drh tags: skip-scan) | |
| 12:27 | Add the ability to use an index even if the left-most columns of the index are unconstrainted, provided that the left-most columns have few distinct values. (check-in: 27dd5993d1 user: drh tags: skip-scan) | |
| 08:55 | Avoid an unnecessary OP_IfNull while doing an indexed search. (check-in: 5196000930 user: drh tags: trunk) | |
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2013-11-12
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| 21:37 | Adjust the SQLITE_MALLOCSIZE defines, primarily to make sure _msize gets used with MSVC when appropriate. (check-in: 4e7e805e11 user: mistachkin tags: trunk) | |
| 21:10 | Fix harmless compiler warning. (check-in: ddacd10105 user: mistachkin tags: trunk) | |
| 20:18 | Minor enhancements to the auxiliary information added to EXPLAIN output with SQLITE_EXPLAIN_ENABLE_COMMENTS. (check-in: 0d1328e33c user: drh tags: trunk) | |
| 18:37 | Break out the structure and macro definitions of where.c into a separate header file whereInt.h for easier editing and debugging. (check-in: c444671246 user: drh tags: trunk) | |
| 17:46 | When possible, have FTS use 32-bit operations to read varints from the database. (check-in: aa7ba302ed user: dan tags: trunk) | |