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2017-04-18
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| 11:20 | Improved optimizations of views as the right operand of a LEFT JOIN. (check-in: 41c27bc0 user: drh tags: trunk) | |
| 05:49 | Refactor the fts3ColumnMethod() function so that all branches can be covered. (check-in: e47fdb49 user: dan tags: trunk) | |
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2017-04-17
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| 23:23 | Defer checking for null in the comparison operators, since that is an uncommon case. (check-in: 56845256 user: drh tags: trunk) | |
| 20:50 | Do not allow a Mem object to be both NULL and some other type at the same time. (check-in: e698db19 user: drh tags: trunk) | |
| 18:42 | Consolidate two branches of code in the "PRAGMA foreign_key_check" implementation. (check-in: 69f51f83 user: dan tags: trunk) | |
| 18:02 | Fix a problem in "PRAGMA foreign_key_check" in handling a WITHOUT ROWID child table with an INTEGER PRIMARY KEY parent key. Also, if an FK violation is detected in a WITHOUT ROWID child table, do not try to read and return the rowid. The second column returned by "PRAGMA foreign_key_check" in this case (WITHOUT ROWID child table) is now always set to NULL. (check-in: 690870bd user: dan tags: trunk) | |
| 16:07 | Further improvements to test coverage in fts3. (check-in: 352413ee user: dan tags: trunk) | |
| 13:38 | Improve coverage of code in fts3. (check-in: 1a08a836 user: dan tags: trunk) | |
| 13:18 | Fix the ".column" output mode in the command-line shell so that it correctly counts and formats multi-byte UTF characters. (check-in: f508aff8 user: drh tags: trunk) | |
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2017-04-16
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| 22:41 | In the showwal command-line tool, for unix builds, if the auxiliary argument is of the form "Ntruncate" where "N" is a frame number, then truncate the WAL file after the N-th frame. (check-in: 90015df3 user: drh tags: trunk) | |
| 22:08 | Add the anycollseq.c loadable extension in etc/misc (check-in: d7b9813c user: drh tags: trunk) | |
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2017-04-15
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| 11:53 | In the skip-ahead-distinct optimization, fix a bug in the logic that determines when to invoke the optimization based on sqlite_stat1 statistics. (check-in: 89f9e436 user: drh tags: trunk) | |
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2017-04-14
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| 22:41 | Fix to the decision logic for when to use the skip-ahead-distinct optimization. (Closed-Leaf check-in: e50fd489 user: drh tags: skip-ahead-distinct) | |
| 19:46 | Remove end-of-line whitespace from lemon.c. (check-in: d78355c8 user: drh tags: trunk) | |
| 19:44 | Fix some left-over K&R-C constructs in lemon.c. No changes to the core. (check-in: a5379905 user: drh tags: trunk) | |
| 19:03 | Add the TK_IF_NULL_ROW opcode to deal with non-NULL result columns in the result set of a view or subquery on the RHS of a LEFT JOIN that gets flattened. (Closed-Leaf check-in: 3a5860d8 user: drh tags: left-join-view) | |
| 17:30 | When doing a DISTINCT query using an index, try to use the index to skip ahead to the next distinct element, rather than doing a full scan of the index. (This is the "skip-ahead-distinct" optimization.) (check-in: f489b5bb user: drh tags: trunk) | |
| 17:18 | An initial attempt to optimize VIEWs that occur as the right operand of a LEFT JOIN. This particular check-in does not work correctly because it does not deal with the case of columns in the VIEW that return non-NULL even when all columns in the table of the VIEW are NULL because of the LEFT JOIN. (check-in: 1838a59c user: drh tags: left-join-view) | |
| 14:50 | Make USE_FULLWARN=1 the default for MSVC and fix harmless compiler warnings. (check-in: 6bf67376 user: mistachkin tags: trunk) | |
| 14:02 | Enhance the sqlite3TreeView() display for Expr objects so that it shows the iRightJoinTable value for Expr nodes that have the EP_FromJoin property. (check-in: 5159cb8f user: drh tags: trunk) | |
| 12:39 | Simplify the interface to the subst() routines that are part of the query flattener by collecting common parameters into the SubstContext object and passing around a pointer to that object. (check-in: e651074b user: drh tags: trunk) | |
| 12:27 | Remove an incorrect ALWAYS(). (check-in: f956f6ae user: drh tags: trunk) | |
| 00:45 | Fix a couple of unreachable branches. (check-in: 1aa0ea8d user: drh tags: skip-ahead-distinct) | |
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2017-04-13
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| 21:29 | Fix the skip-ahead-distinct optimization so that it works with indexes that have repeated columns with different collating sequences. (check-in: ce1e2b88 user: drh tags: skip-ahead-distinct) | |
| 19:48 | Simplification of the skip-ahead-distinct logic. There is still an issue with handling COLLATE. (check-in: 57c5173b user: drh tags: skip-ahead-distinct) | |
| 18:33 | New test cases and minor fixes for the optimization on this branch. (check-in: 70ac9ea1 user: dan tags: skip-ahead-distinct) | |
| 15:51 | Reinstate the SQLITE_API qualifier on the sqlite3_delete_database() method in test_delete.c. Accidentally removed by the previous commit. (check-in: 59c70108 user: dan tags: trunk) | |
| 15:36 | Update the code in test_delete.c to use the "win32" VFS if SQLITE_OS_WIN is defined. (check-in: fa9bb7b7 user: dan tags: trunk) | |
| 13:01 | Only use the skip-ahead-distinct optimization if the index has been analyzed and we know that a skip-head is likely to skip over at least 11 rows. The magic number 11 was determined by experimentation. (check-in: 0cf16dec user: drh tags: skip-ahead-distinct) | |
| 09:45 | Allow a user column name to be used on the LHS of a MATCH operator in FTS5. (check-in: 6f54ffd1 user: dan tags: trunk) | |
| 01:19 | Forward port the skip-ahead-distinct branch which was abandoned for some reason that I do not recall. This port should have been achived by a merge of trunk into the previous head of skip-ahead-distinct, but that did not work. So I had to manually "rebase" the changes. (check-in: 132339a1 user: drh tags: skip-ahead-distinct) | |
| 00:12 | Fix a regression caused by the fix for ticket [6c9b5514077fed34551f98e64c09a1] - control characters allowed in JSON. (check-in: 8e7b6118 user: drh tags: trunk) | |
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2017-04-12
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| 17:50 | Update fts5 to support "<colset> : ( <expr> )" for column filtering, as well as "<colset> : NEAR(...)" and "<colset> : <phrase>". (check-in: c847543f user: dan tags: trunk) | |
| 17:38 | Improved \n and \r escapes in the ext/misc/dbdump.c utility function. The implementation of dbdump.c now matches the implementation in the CLI. (check-in: f2643315 user: drh tags: trunk) | |
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2017-04-11
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| 20:48 | Avoid updating unaffected indexes on a table as part of an UPDATE that requires foreign key processing in some cases. (check-in: 7aae5c0f user: dan tags: trunk) | |
| 19:58 | Avoid updating unaffected indexes on a table as part of an UPDATE that requires foreign key processing in some cases. (Closed-Leaf check-in: 477bea9e user: dan tags: fkey-optimization) | |
| 18:55 | Limit the depth of recursion for valid JSON in the JSON1 extension in order to avoid using excess stack space in the recursive descent parser. Fix for ticket [981329adeef51011052667a9]. (check-in: 1f68c184 user: drh tags: trunk) | |
| 18:06 | Smaller and faster implementation of exprMightBeIndexed(). (check-in: 76cd611d user: drh tags: trunk) | |
| 16:44 | Very slight smaller and faster sqlite3SelectNew() (check-in: 4143650c user: drh tags: trunk) | |
| 12:20 | Add an ALWAYS() around an unreachable condition in sqlite3VdbeMemGrow(). (check-in: 0f3eb61f user: drh tags: trunk) | |
| 11:52 | Fix a segfault that could occur if an indexed expression was used in a comparison operation within the result-set of a SELECT statement. (check-in: d6bb7c42 user: dan tags: trunk) | |
| 01:30 | When evaluating a query that uses an index on an expression, try to use the expression values read directly from the index rather than reevaluating the expression. (check-in: a47efb7c user: drh tags: trunk) | |
| 01:01 | Improved comments. Fix a problem when an indexed expression is used in an ORDER BY clause. (Closed-Leaf check-in: c59eaf2b user: drh tags: covering-index-on-expr) | |
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2017-04-10
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| 23:42 | Merge changes from trunk. (check-in: 8978465f user: drh tags: covering-index-on-expr) | |
| 20:51 | Smaller and faster vdbeFreeOpArray() (check-in: e052436d user: drh tags: trunk) | |
| 20:27 | Slightly smaller and faster sqlite3VdbeMemGrow(). (check-in: efd1702a user: drh tags: trunk) | |
| 12:31 | Add a new JSON test case to verify that all control characters are escaped in the json_quote() function. (check-in: 6ee12221 user: drh tags: trunk) | |
| 12:25 | Change the JSON extension so that it disallows control characters inside of strings. Fix for ticket [6c9b5514077fed34551f98e64c09a10dc2fc8e16]. (check-in: 475d8f82 user: drh tags: trunk) | |
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2017-04-09
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| 19:23 | Do not expose the name of the internal Mem object in the public interface defined by sqlite3.h. (check-in: 19dd753f user: drh tags: trunk) | |
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2017-04-08
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| 18:18 | Disallow leading zeros on numeric constants in JSON. Fix for ticket [b93be8729a895a528e2] (check-in: 204e72f0 user: drh tags: trunk) | |
| 14:11 | Expand on the comment above OP_Destroy to explain why it throws an error if there are any active reader VMs. (check-in: b9a8c2b9 user: dan tags: trunk) | |
| 13:52 | Have the rtree module close any open blob-handle within the xSavepoint method. This prevents such an open blob handle from interfering with DROP TABLE operations. (check-in: fa4416ad user: dan tags: trunk) | |
| 13:42 | Fix the quoting mechanism for ".dump" so that it is not applied for the ".mode quote" output. (check-in: 78c1e903 user: drh tags: trunk) | |
| 09:12 | Have fts5 close any open blob-handle when a new savepoint is opened. This ensures that fts5 does not prevent DROP TABLE statements (which always open a savepoint) from succeeding. (check-in: a921ada8 user: dan tags: trunk) | |
| 01:09 | Make sure the RTree sqlite3_blob handle is reset prior to renaming the table. (check-in: 1cdae2db user: drh tags: trunk) | |
| 00:55 | Fix the ".dump" command so that it works with ".headers on". Also fix the display of ".mode insert" with ".headers on". (check-in: a6ce57ee user: drh tags: trunk) | |
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2017-04-07
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| 20:20 | Use replace() instead of char() to quote newline and return characters in strings in the output of .dump, to avoid excess expression complexity. (check-in: 73073529 user: drh tags: trunk) | |
| 19:52 | Remove an unused token type. (check-in: 13a42223 user: drh tags: covering-index-on-expr) | |
| 19:41 | Proof of concept for the ability to use the expression columns in an index on expressions in place of equivalent expressions in the result set or in the WHERE clause. This check-in compiles but is mostly untested. (check-in: a52ef2ad user: drh tags: covering-index-on-expr) | |
| 11:45 | Use replace() instead of char() to quote newline and return characters in strings in the output of .dump, to avoid excess expression complexity. (Closed-Leaf check-in: 4c2b5729 user: drh tags: shell-fix) | |
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2017-04-06
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| 14:56 | Fix the ".lint fkey" shell command for cases where the child key is also an INTEGER PRIMARY KEY. (check-in: 48826b22 user: dan tags: trunk) | |
| 12:06 | Fix the ".lint fkey" shell tool command so that it works for foreign keys that refer implicitly to primary key columns with non-BINARY default collation sequences. (check-in: 327eff25 user: dan tags: trunk) | |
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2017-04-05
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| 13:44 | Remove a confusing and pointless sentence from the documentation for the sqlite3_interrupt() interface. (check-in: c5f1a2b6 user: drh tags: trunk) | |
| 12:39 | Split off sqlite3DbFreeNN() from sqlite3DbFree() and use it in cases where we know that the argument to be freed is never NULL. (check-in: ad90e8bb user: drh tags: trunk) | |
| 11:57 | Save a few bytes and a few CPU cycles in sqlite3ExprListDelete() routine. (check-in: 9e6c9391 user: drh tags: trunk) | |
| 11:49 | Remove a conditional made unreachable by the previous ExprList enhancement. (check-in: a1cf4476 user: drh tags: trunk) | |
| 11:32 | Combine the ExprList_item objects and the ExprList wrapper into a single memory allocation, for improved performance and reduced footprint. (check-in: 2b6560ad user: drh tags: trunk) | |
| 10:54 | Attempt to remove bash-isms from configure.ac. Use -O0 with --enable-debug. (check-in: 71ed35cc user: drh tags: trunk) | |
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2017-04-04
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| 19:58 | Fix a problem causing "PRAGMA integrity_check" to disable the xfer optimization for subsequent VACUUM operations on tables with one or more CHECK constraints. This could result in VACUUM producing slightly larger database files. (check-in: e5bb7db5 user: dan tags: trunk) | |
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2017-04-03
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| 14:07 | Avoid an unnecessary call to sqlite3WhereGetMask() inside of whereShortCut(). (check-in: 5c11f430 user: drh tags: trunk) | |
| 13:59 | Do not attempt to run sync2.test with SQLITE_DISABLE_DIRSYNC builds. (check-in: 658f08ce user: dan tags: trunk) | |
| 13:33 | Force a schema load prior to "PRAGMA optimize". (check-in: 86897c24 user: drh tags: trunk) | |
| 13:17 | Fix typos in the documentation for OP_Column. (check-in: 777b43e6 user: drh tags: trunk) | |
| 12:04 | Slightly smaller and faster implementation for vdbeSorterCompareInt(). (check-in: 84fa069c user: drh tags: trunk) | |
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2017-04-01
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| 20:44 | Remove an unnecessary setting of the Mem.enc field for the output of the OP_Record opcode, for a performance improvement and size reduction. (check-in: e6e36b28 user: drh tags: trunk) | |
| 20:14 | Minor performance enhancements to the OP_Affinity opcode. (check-in: c45cd3b9 user: drh tags: trunk) | |
| 19:45 | Remove an unnecessary clearing of the Vdbe.iCurrentTime value. (check-in: fcd2acdd user: drh tags: trunk) | |
| 11:59 | Faster implementation for sqlite3VdbeIntValue() and sqlite3VdbeRealValue(). (check-in: 8698df60 user: drh tags: trunk) | |
| 11:40 | Remove unused fields from the BtCursor object. (check-in: 1c0d82e0 user: drh tags: trunk) | |
| 00:20 | Save a 78 bytes of code space and a million CPU cycles in speedtest1 by storing the cell index for the leaf page in the BtCursor object in its own field (BtCursor.ix), rather than as an entry in the BtCursor.aiIdx array. (check-in: 2452f061 user: drh tags: trunk) | |
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2017-03-30
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| 17:13 | Declare the Lemon-generated parser object as itself. (Duh) (check-in: c8000e94 user: drh tags: trunk) | |
| 16:51 | Increase the version number for the next development cycle. (check-in: 9e550ccc user: drh tags: trunk) | |
| 16:37 | Ensure that the stack space used to hold the Lemon-generated parser object is always 8-byte aligned. (check-in: 1279de0b user: drh tags: trunk) | |
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2017-03-29
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| 23:22 | When compiling with MSVC, disable extra SELECT/WHERE tracing for dynamically built shells. (check-in: a6891942 user: mistachkin tags: trunk) | |
| 18:03 | Avoid unnecessary blob handle invalidation when changes are made to an unrelated table. (check-in: 4a01880b user: drh tags: trunk) | |
| 17:06 | Slightly smaller and faster implementation of pcache1InitBulk(). (check-in: 06c2b685 user: drh tags: trunk) | |
| 16:55 | Fix some tests in malloc5.test to account for the sqlite3_release_memory() change in the previous commit. (check-in: d336858d user: dan tags: trunk) | |
| 15:18 | Fix the sqlite3_release_memory() interface so that it works even if SQLITE_DEFAULT_PCACHE_INITSZ is non-zero. (check-in: 5d902b7f user: drh tags: trunk) | |
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2017-03-25
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| 19:16 | Add the new sqlite3_set_last_insert_rowid() interface to the extension loader thunk. (check-in: 8469fc0d user: drh tags: trunk) | |
| 18:31 | Do not run tests for ".dump --preserve-rowids" when testing SQLITE_OMIT_VIRTUALTABLE builds. (check-in: 55df410b user: dan tags: trunk) | |
| 18:15 | Disable the new --preserve-rowids option on the CLI ".dump" command if compiled with SQLITE_OMIT_VIRTUALTABLE. (check-in: bd5bbe4e user: drh tags: trunk) | |
| 18:03 | Make the default value for SQLITE_DEFAULT_SYNCHRONOUS a simple integer literal, so that it does not show up goofy in the output of "PRAGMA compile_options;". (check-in: 833ab321 user: drh tags: trunk) | |
| 12:08 | Fix two harmless compiler warnings. (check-in: 32be9c3f user: drh tags: trunk) | |
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2017-03-24
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| 19:45 | Fix a harmless compiler warning in the JSON1 extension. (check-in: c2c3dd84 user: drh tags: trunk) | |
| 18:38 | Previous check-in was not correct. This is a better fix for the OP_Once problem of ticket [06796225f59c057cd120f1]. (check-in: 8194dd28 user: drh tags: trunk) | |
| 17:59 | Fix the OP_Once opcode so that it works correctly for recursive triggers. Ticket [06796225f59c057cd120f1]. (check-in: 25560145 user: drh tags: trunk) | |
| 13:31 | Add the RFC-7396 Appendix A test cases for json_patch(). (check-in: c5441d2d user: drh tags: trunk) | |
| 12:35 | Fix an error in the new json_patch() routine discovered by Ralf Junker. (check-in: 9d535041 user: drh tags: trunk) | |
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2017-03-23
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| 23:44 | Add the json_patch() SQL function to the JSON1 extension. (check-in: 47608848 user: drh tags: trunk) | |
| 20:33 | Change the name of the json_merge_patch() function to just json_patch(). (Closed-Leaf check-in: 04d41004 user: drh tags: json_mergepatch) | |
| 19:51 | Improvement to the amalgamation configure.ac file contributed by Bob Friesenhahn. (check-in: bf28a55d user: drh tags: trunk) | |