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100 ancestors of [6fac0b92]
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2016-04-15
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| 16:27 | Skip-ahead is now just an optimization. If it gets confused, it falls back to an incremental scan with redundancy elimination. check-in: 6fac0b92 user: drh tags: skip-ahead-distinct | |
| 16:17 | Skip-ahead does not always work. So we still have to check for redundancy. check-in: db5a2364 user: drh tags: skip-ahead-distinct | |
| 15:54 | Fixes to the skip-ahead distinct logic. More issues remain. check-in: 45a70b2b user: drh tags: skip-ahead-distinct | |
| 15:06 | Merge enhancements from trunk, especially the ".eqp full" enhancement to the command-line shell. check-in: 491f0dbd user: drh tags: skip-ahead-distinct | |
| 15:03 | CLI enhancement: Add the ".eqp full" option, that shows both the EXPLAIN QUERY PLAN and the EXPLAIN output for each command run. Also disable any ".wheretrace" and ".selecttrace" when showing EQP output. check-in: 3e217d62 user: drh tags: trunk | |
| 14:13 | Several new test cases that cause failures. check-in: 0379f2cf user: drh tags: skip-ahead-distinct | |
| 13:24 | Fixed crash bugs. Still sometimes gets the wrong answers. check-in: 2afcb2c7 user: drh tags: skip-ahead-distinct | |
| 01:55 | Progress toward getting DISTINCT to use a seek to advance to the next distinct row, when driven by an appropriate index. check-in: 9e14aa14 user: drh tags: skip-ahead-distinct | |
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2016-04-14
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| 19:29 | Work toward improving analysis and code generation for DISTINCT and aggregate queries. Leaf check-in: 129083bd user: drh tags: better-distinct-agg | |
| 17:29 | In the ICU extension toupper() and tolower() SQL functions, avoid calling u_strToUpper() or u_strToLower() a second time if the buffer passed to the first invocation turns out to be large enough. check-in: d23e5813 user: dan tags: trunk | |
| 16:40 | Add the SF_HasAgg constant (currently unused). Also enhance the comments on many other constant definitions to detail constraints on their values. check-in: 7b7a69d0 user: drh tags: trunk | |
| 15:44 | Correctly interpret negative "PRAGMA cache_size" values when determining the cache-size used for sorting large amounts of data (i.e. the functionality in vdbesort.c). check-in: 79147dca user: dan tags: trunk | |
| 15:38 | Add some missing testcase() macros to the pushDownWhereTerms() routine. check-in: 67d7f79c user: drh tags: trunk | |
| 13:35 | Rename WhereInfo.pResultSet to pDistinctSet to more accurately reflect what it represents. check-in: 53179614 user: drh tags: trunk | |
| 13:16 | Since the return value of sqlite3OsClose() is always ignored, we might as well make it "void" instead of "int", and thereby save 50 bytes in the compiled binary. check-in: 7ee570e7 user: drh tags: trunk | |
| 13:06 | Additional ".selecttrace" debugging output when the query is transformed from a DISTINCT into a GROUP BY. check-in: 5a469145 user: drh tags: trunk | |
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2016-04-13
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| 21:00 | Fix compiler warnings by removing surplus local variables in the schema pretty-printer logic of the command-line shell. check-in: 55a62483 user: drh tags: trunk | |
| 15:52 | Fixes for harmless compiler warnings. check-in: 68142dc5 user: drh tags: trunk | |
| 15:33 | Add the --indent option to the .schema and .fullschema commands in the shell, to enable simple but effective pretty-printing. check-in: 83cfe82c user: drh tags: trunk | |
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2016-04-12
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| 20:26 | A couple more compiler warning fixes. Closed-Leaf check-in: 929fa4c3 user: mistachkin tags: warnings | |
| 20:15 | Even more compiler warning fixes. check-in: 7faec9ea user: mistachkin tags: warnings | |
| 20:05 | More harmless compiler warning fixes. check-in: ab69527c user: mistachkin tags: warnings | |
| 19:30 | Compilation fix for a C99-ism in the 'fts3view' tool. check-in: bedb88a4 user: mistachkin tags: trunk | |
| 19:20 | Fix harmless compiler warnings in the 'session' module. check-in: a18a6ce2 user: mistachkin tags: trunk | |
| 17:13 | Fix speedtest1 so that it automatically unlinks its test database prior to startup. check-in: b65b69f6 user: drh tags: trunk | |
| 16:59 | Add the --temp option to the speedtest1.c performance test program. check-in: 8053a6e2 user: drh tags: trunk | |
| 16:23 | Improved localtime() support for WindowsCE check-in: 662c32af user: drh tags: trunk | |
| 16:11 | Add and adjust comments. Closed-Leaf check-in: 541c6da2 user: mistachkin tags: winCeLocalTime | |
| 16:04 | Add the sqlite3_snapshot_cmp() interface (available only with SQLITE_ENABLE_SNAPSHOT). check-in: 7e728965 user: drh tags: trunk | |
| 15:14 | Update the documentation for sqlite3_snapshot_cmp() to make the circumstances under which the comparison is valid clearer. Add tests for the same. Closed-Leaf check-in: 8fc83474 user: dan tags: snapshot-cmp | |
| 11:58 | Update the header comment on the memjournal.c file. No code changes. check-in: 07f10dea user: drh tags: trunk | |
| 00:26 | Performance optimization the Vdbe allocator. check-in: e2c4995b user: drh tags: trunk | |
| 00:16 | Avoid unnecessary calls to object destructors for a small performance gain. check-in: aec94b6e user: drh tags: trunk | |
| 00:00 | Performance improvements in sqlite3WhereExprUsage(). check-in: fdf75239 user: drh tags: trunk | |
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2016-04-11
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| 22:45 | Further refinements. check-in: b35bb928 user: mistachkin tags: winCeLocalTime | |
| 22:24 | Merge updates from trunk. check-in: b8094166 user: mistachkin tags: winCeLocalTime | |
| 22:23 | Fix typo in the MSVC makefile. check-in: 3189a7f1 user: mistachkin tags: trunk | |
| 22:10 | Fix some compilation issues. check-in: 016481b3 user: mistachkin tags: winCeLocalTime | |
| 19:59 | Add the sqlite3_snapshot_cmp() API. check-in: c698a21a user: dan tags: snapshot-cmp | |
| 19:01 | Performance optimization to sqlite3Dequote() and its callers. check-in: 9efe2265 user: drh tags: trunk | |
| 18:25 | Performance optimization for the sqlite3ExprListDelete() routine. check-in: 2764aeaa user: drh tags: trunk | |
| 18:15 | Performance optimizations in the column cache of the code generator, and especially the sqlite3ExprCacheRemove() routine. check-in: e35b345c user: drh tags: trunk | |
| 16:43 | Simplification and performance improvements in sqlite3ExprDup() and its subroutines. More work is possible in this area. check-in: 476cc283 user: drh tags: trunk | |
| 16:35 | Rename the OP_MX_JUMP macro to SQLITE_MX_JUMP_OPCODE to avoid confusing the opcode name generator. check-in: e554a4c3 user: drh tags: trunk | |
| 14:49 | Performance improvement in sqlite3ExprDelete(). check-in: 60ad80e3 user: drh tags: trunk | |
| 13:36 | Remove the VdbeOp.opflags field and its associated initialization overhead. Update mkopcodeh.tcl to reorder opcode numbers to help the resolveP2Values() routine run faster. check-in: 099478fa user: drh tags: trunk | |
| 01:43 | Back off of the parser optimization in the previous check-in, slightly, to preserve some backwards compatibility regarding some undocumented behavior in the '#AAA' style query parameter. check-in: ef1966c2 user: drh tags: trunk | |
| 01:26 | Small size reduction and performance improvement in the parser. check-in: 16df7128 user: drh tags: trunk | |
| 01:06 | Factor out the common operation of setting the Expr.x.pSelect field of an Expr object into a subroutine. check-in: 6a5cceee user: drh tags: trunk | |
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2016-04-09
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| 18:04 | Fix a problem in the code generator for joins on virtual tables where the outer loop of the join uses the IN operator. check-in: 6c56b3a0 user: drh tags: trunk | |
| 17:04 | Fix the sqlite3BtreeDelete() routine so that it preserves the correct key even when the row being deleted is not on a leaf page. Fix for ticket [a306e56ff68b8fa56] check-in: ca2ef8a8 user: drh tags: trunk | |
| 14:36 | Limit the number of digits shown in the "prereq" mask for ".wheretrace" debugging output. check-in: 3686ed74 user: drh tags: trunk | |
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2016-04-08
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| 19:44 | Update documentation for sqlite3_snapshot_open(). No code changes. check-in: 1dfa5234 user: drh tags: trunk | |
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2016-04-07
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| 21:14 | Add test cases for ticket [7f7f8026eda387d544]. check-in: 87aa9357 user: drh tags: trunk | |
| 18:42 | Prevent the in-memory journal read cursor from entering an inconsistent state when it reads the last few bytes out of the journal file. Fix for ticket [7f7f8026eda38]. check-in: c4b9c611 user: drh tags: trunk | |
| 14:16 | Avoid decrementing a pointer off the front end of the buffer in OP_MakeRecord. check-in: 153135bf user: drh tags: trunk | |
| 14:05 | Instead of just commenting out the unneeded code in the previous check-in, remove it completely. check-in: 8415d484 user: drh tags: trunk | |
| 14:01 | Remove an unnecessary test for a NULL pointer in freeP4(). check-in: e84e88e3 user: drh tags: trunk | |
| 13:45 | Update comments on the unix file locking protocol. No changes to code. check-in: 716b20de user: drh tags: trunk | |
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2016-04-05
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| 23:39 | Remove an unnecessary branch in the sqlite3LogEstToInt() routine. check-in: da81d7af user: drh tags: trunk | |
| 20:59 | Carry table column types through into VIEW definitions, where possible. check-in: fb555c3c user: drh tags: trunk | |
| 19:46 | Remove superfluous directories from the Makefile clean targets. check-in: 0bf9926c user: mistachkin tags: trunk | |
| 17:59 | Merge updates from trunk. check-in: 00990020 user: mistachkin tags: winCeLocalTime | |
| 15:59 | Incorrect version of build.c checked in at [87e5f5a6c60e3] (because I neglected to press the "Save" button on the text editor). There is no change to the logic, just improved presentation. check-in: cf569f9f user: drh tags: trunk | |
| 14:02 | Make sure "0" intended as a NULL pointer is cast to a pointer when used in a varargs functions parameter. check-in: ed128e8b user: drh tags: trunk | |
| 14:01 | Remove an unnecessary conditional from the index builder. check-in: 87e5f5a6 user: drh tags: trunk | |
| 13:35 | Use SQLITE_WITHIN() for pointer range comparisons in some testing code. check-in: 7cacf4e9 user: drh tags: trunk | |
| 13:19 | Do not allow pointer arithmetic to move a pointer across a memory allocation boundary. check-in: 85b97931 user: drh tags: trunk | |
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2016-04-04
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| 18:04 | Fix documentation typos. Comment changes only. No changes to code. check-in: d5fc2f7f user: drh tags: trunk | |
| 17:59 | Improve error messages from the 'shell1-5.0' test. check-in: cefd36ff user: mistachkin tags: trunk | |
| 17:34 | Improved handling of UTF8 by the command-line shell. check-in: 4534ebf1 user: drh tags: trunk | |
| 17:23 | Add the ".auth ON|OFF" command to the command-line shell. check-in: 65c7bcc4 user: drh tags: trunk | |
| 16:40 | Test that the view name is passed to the authorization callback when a SELECT statement is run on a view. check-in: 8627a4cd user: dan tags: trunk | |
| 15:47 | Add and enhance the new tests. Closed-Leaf check-in: f4cbd18d user: mistachkin tags: altShellFix | |
| 14:57 | Enhance sqlite3session_apply() and sqlite3session_apply_strm() so that conflicts are retried before the xConflict() callback is invoked, as long as the "apply" operation is making forward progress. check-in: 42a21966 user: drh tags: trunk | |
| 13:46 | Minor performance optimization in the comparison opcodes of the VDBE. check-in: e375fe52 user: drh tags: trunk | |
| 12:38 | Fix harmless compiler warnings. check-in: 0213d6af user: drh tags: trunk | |
| 02:33 | Refinements to the previous check-in. check-in: b36dfdff user: mistachkin tags: altShellFix | |
| 02:16 | Experimental changes to the command line shell to make it work better with Unicode on Windows. check-in: 74183a5f user: mistachkin tags: altShellFix | |
| 02:05 | More refactoring and cleanup work on the Win32 string conversion and utility routines. check-in: 02ccb444 user: mistachkin tags: altShellFix | |
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2016-04-03
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| 22:44 | Revise and enhance the Win32 string conversion routines. check-in: 345860c9 user: mistachkin tags: altShellFix | |
| 20:50 | Replace the new fprintf() calls. check-in: f76c3a0c user: mistachkin tags: altShellFix | |
| 20:45 | Merge updates from trunk. check-in: 566b551e user: mistachkin tags: altShellFix | |
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2016-04-01
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| 17:54 | Preupdate hook documentation fixes. No changes to code. check-in: 59814f35 user: drh tags: trunk | |
| 12:35 | When reading an sqlite_stat1 table with missing entries for some indexes, set the default for the missing indexes after all other indexes are set so that the default values are more in line with indexes that are actually in the stat1 table. check-in: a62340dc user: drh tags: trunk | |
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2016-03-31
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| 22:53 | Update the clean target in the MSVC makefile. check-in: 69f4d832 user: mistachkin tags: trunk | |
| 20:40 | Enhance the query planner so that IS and IS NULL operators are able to drive an index on a LEFT OUTER JOIN. check-in: c648539b user: drh tags: trunk | |
| 15:08 | Add another OOM test to this branch. Closed-Leaf check-in: 49763fc3 user: dan tags: session-retry | |
| 10:50 | Add further tests for the code on this branch. Fix a problem in OOM handling. check-in: 195f3340 user: dan tags: session-retry | |
| 02:44 | Enhanced comments describing the sessions file format. No changes to code. check-in: 84dc41e2 user: drh tags: session-retry | |
| 00:45 | Fix the return code in sessionRetryConstraints(). check-in: ea917c14 user: drh tags: session-retry | |
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2016-03-30
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| 21:19 | Have the sqlite3session_apply() function and its streaming equivalent retry any operations that failed with SQLITE_CONSTRAINT after all other operations on the same table have been attempted. New code is largely untested. check-in: 1085911a user: dan tags: session-retry | |
| 16:23 | Updates for the MSVC makefiles. check-in: 7cf0cab7 user: mistachkin tags: trunk | |
| 16:22 | Fix typo in comment. No changes to code. check-in: 64d75cbe user: mistachkin tags: trunk | |
| 15:30 | Simplifications and clarification to update callback handling in the OP_Delete and OP_Insert opcodes. check-in: 47887ef8 user: drh tags: trunk | |
| 14:26 | Increase the version number to 3.13.0 on account of the new session extension. check-in: e9bcd5ac user: drh tags: trunk | |
| 14:17 | Remove a redundant test for disabling RESTRICT with defer_foreign_keys=ON. check-in: 9cdf813c user: drh tags: trunk | |
| 13:43 | Incorporate the sessions extension and the SQLITE_ENABLE_PREUPDATE_HOOK compile-time option. check-in: 4af7a90f user: drh tags: trunk | |
| 12:56 | Avoid compiler warnings and excess opcodes when SQLITE_ENABLE_PREUPDATE_HOOK is not used. Fix the EXPLAIN output for P4_TABLE opcodes. Closed-Leaf check-in: 5ab46d76 user: drh tags: sessions | |
| 12:20 | Improvements to the performance testing program "speedtest1.c" and the shell script that invokes it. check-in: e4bee561 user: drh tags: trunk | |
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2016-03-29
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| 10:19 | Merge changes for 3.12.0. check-in: ed22eb65 user: drh tags: sessions | |