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100 check-ins occurring around c948384dfdd9f68a.
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2014-01-27
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| 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) | |
| 14:05 | Bring in all the latest trunk changes, including the Common Table Expressions implementation. (check-in: 9b43e55919 user: drh tags: sessions) | |
| 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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| 12:09 | Merge the latest trunk changes into the sessions branch. (check-in: cfd110bf5d user: drh tags: sessions) | |
| 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) | |