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100 ancestors of 41c27bc0ff1d3135
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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: 41c27bc0ff user: drh tags: trunk) | |
| 05:49 | Refactor the fts3ColumnMethod() function so that all branches can be covered. (check-in: e47fdb493b 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: 5684525613 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: e698db1956 user: drh tags: trunk) | |
| 18:42 | Consolidate two branches of code in the "PRAGMA foreign_key_check" implementation. (check-in: 69f51f838a 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: 690870bd7b user: dan tags: trunk) | |
| 16:07 | Further improvements to test coverage in fts3. (check-in: 352413eed4 user: dan tags: trunk) | |
| 13:38 | Improve coverage of code in fts3. (check-in: 1a08a836fa 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: f508aff8d1 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: 90015df306 user: drh tags: trunk) | |
| 22:08 | Add the anycollseq.c loadable extension in etc/misc (check-in: d7b9813cb1 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: 89f9e4363a 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: e50fd48969 user: drh tags: skip-ahead-distinct) | |
| 19:46 | Remove end-of-line whitespace from lemon.c. (check-in: d78355c85f user: drh tags: trunk) | |
| 19:44 | Fix some left-over K&R-C constructs in lemon.c. No changes to the core. (check-in: a53799059d 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: 3a5860d86f 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: f489b5bb6b 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: 1838a59c8a user: drh tags: left-join-view) | |
| 14:50 | Make USE_FULLWARN=1 the default for MSVC and fix harmless compiler warnings. (check-in: 6bf673767b 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: 5159cb8f2b 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: e651074be2 user: drh tags: trunk) | |
| 12:27 | Remove an incorrect ALWAYS(). (check-in: f956f6ae6b user: drh tags: trunk) | |
| 00:45 | Fix a couple of unreachable branches. (check-in: 1aa0ea8db7 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: ce1e2b8877 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: 57c5173b63 user: drh tags: skip-ahead-distinct) | |
| 18:33 | New test cases and minor fixes for the optimization on this branch. (check-in: 70ac9ea1a6 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: 59c70108fd 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: fa9bb7b768 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: 0cf16decd5 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: 6f54ffd151 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: 132339a1fb 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: 8e7b611863 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: c847543f8b 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: f2643315bb 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: 7aae5c0f99 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: 477bea9ed0 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: 1f68c18459 user: drh tags: trunk) | |
| 18:06 | Smaller and faster implementation of exprMightBeIndexed(). (check-in: 76cd611d41 user: drh tags: trunk) | |
| 16:44 | Very slight smaller and faster sqlite3SelectNew() (check-in: 4143650c4c user: drh tags: trunk) | |
| 12:20 | Add an ALWAYS() around an unreachable condition in sqlite3VdbeMemGrow(). (check-in: 0f3eb61f44 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: d6bb7c42ff 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: a47efb7c85 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: c59eaf2b7c 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: 8978465f33 user: drh tags: covering-index-on-expr) | |
| 20:51 | Smaller and faster vdbeFreeOpArray() (check-in: e052436d9f user: drh tags: trunk) | |
| 20:27 | Slightly smaller and faster sqlite3VdbeMemGrow(). (check-in: efd1702ae8 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: 6ee12221fa 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: 475d8f82ec 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: 19dd753f9e 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: 204e72f008 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: b9a8c2b9be 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: fa4416adc2 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: 78c1e90305 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: a921ada890 user: dan tags: trunk) | |
| 01:09 | Make sure the RTree sqlite3_blob handle is reset prior to renaming the table. (check-in: 1cdae2db3c 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: a6ce57ee3c 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: 7307352988 user: drh tags: trunk) | |
| 19:52 | Remove an unused token type. (check-in: 13a422230d 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: a52ef2ad7c 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: 4c2b572969 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: 48826b222c 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: 327eff25ba 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: c5f1a2b6eb 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: ad90e8bb5e user: drh tags: trunk) | |
| 11:57 | Save a few bytes and a few CPU cycles in sqlite3ExprListDelete() routine. (check-in: 9e6c939144 user: drh tags: trunk) | |
| 11:49 | Remove a conditional made unreachable by the previous ExprList enhancement. (check-in: a1cf447632 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: 2b6560ad88 user: drh tags: trunk) | |
| 10:54 | Attempt to remove bash-isms from configure.ac. Use -O0 with --enable-debug. (check-in: 71ed35ccf7 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: e5bb7db51c 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: 5c11f4303f user: drh tags: trunk) | |
| 13:59 | Do not attempt to run sync2.test with SQLITE_DISABLE_DIRSYNC builds. (check-in: 658f08ce84 user: dan tags: trunk) | |
| 13:33 | Force a schema load prior to "PRAGMA optimize". (check-in: 86897c24c0 user: drh tags: trunk) | |
| 13:17 | Fix typos in the documentation for OP_Column. (check-in: 777b43e64f user: drh tags: trunk) | |
| 12:04 | Slightly smaller and faster implementation for vdbeSorterCompareInt(). (check-in: 84fa069c5b 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: e6e36b288f user: drh tags: trunk) | |
| 20:14 | Minor performance enhancements to the OP_Affinity opcode. (check-in: c45cd3b947 user: drh tags: trunk) | |
| 19:45 | Remove an unnecessary clearing of the Vdbe.iCurrentTime value. (check-in: fcd2acdd60 user: drh tags: trunk) | |
| 11:59 | Faster implementation for sqlite3VdbeIntValue() and sqlite3VdbeRealValue(). (check-in: 8698df60c2 user: drh tags: trunk) | |
| 11:40 | Remove unused fields from the BtCursor object. (check-in: 1c0d82e078 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: 2452f0617d 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: c8000e94cc user: drh tags: trunk) | |
| 16:51 | Increase the version number for the next development cycle. (check-in: 9e550ccc29 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: 1279de0b70 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: a68919425c user: mistachkin tags: trunk) | |
| 18:03 | Avoid unnecessary blob handle invalidation when changes are made to an unrelated table. (check-in: 4a01880b62 user: drh tags: trunk) | |
| 17:06 | Slightly smaller and faster implementation of pcache1InitBulk(). (check-in: 06c2b685e1 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: d336858dfc 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: 5d902b7fea 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: 8469fc0d48 user: drh tags: trunk) | |
| 18:31 | Do not run tests for ".dump --preserve-rowids" when testing SQLITE_OMIT_VIRTUALTABLE builds. (check-in: 55df410b2c 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: bd5bbe4eec 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: 833ab3212a user: drh tags: trunk) | |
| 12:08 | Fix two harmless compiler warnings. (check-in: 32be9c3faa 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: c2c3dd8453 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: 8194dd2814 user: drh tags: trunk) | |
| 17:59 | Fix the OP_Once opcode so that it works correctly for recursive triggers. Ticket [06796225f59c057cd120f1]. (check-in: 2556014514 user: drh tags: trunk) | |
| 13:31 | Add the RFC-7396 Appendix A test cases for json_patch(). (check-in: c5441d2df2 user: drh tags: trunk) | |
| 12:35 | Fix an error in the new json_patch() routine discovered by Ralf Junker. (check-in: 9d5350418b 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: 4760884820 user: drh tags: trunk) | |
| 20:33 | Change the name of the json_merge_patch() function to just json_patch(). (Closed-Leaf check-in: 04d4100445 user: drh tags: json_mergepatch) | |
| 19:51 | Improvement to the amalgamation configure.ac file contributed by Bob Friesenhahn. (check-in: bf28a55d81 user: drh tags: trunk) | |