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100 descendants of [76cd611d]

2017-05-03
15:54
Always enable URI filenames when compiling with SQLITE_HAS_CODEC. Also allow plaintext keys using the key= query parameter. check-in: 31a51b4d user: drh tags: trunk
13:05
Fix a harmless compiler warning on Windows. check-in: 593e5dd0 user: drh tags: schemalint
12:50
Get sqlite3_expert building on Windows. check-in: d8254047 user: drh tags: schemalint
12:15
In sqlite3expert.c, do not copy the schema for virtual tables. Updates to makefiles to make building easier. check-in: da15752d user: drh tags: schemalint
2017-05-02
20:42
In the sqlite3_expert command-line tool, allow two-dash options. Do not accept the database name if it begins with "-". check-in: af7d1596 user: drh tags: schemalint
19:45
Merge the latest enhancements from trunk. check-in: a7dcf6a7 user: drh tags: schemalint
18:00
Fix the fts3EvalAverageDocsize() routine so that it returns errors from sqlite3_reset() rather than always returning SQLITE_OK. check-in: 430f539c user: drh tags: trunk
17:54
Reuse the same materialization of a view when that view appears in a query more than once, such as in a self-join. check-in: 9e35c89d user: drh tags: trunk
16:55
Move terms of the HAVING clause that reference only columns in the GROUP BY clause over to the WHERE clause, resulting in a faster query plan. check-in: 47cbb471 user: drh tags: trunk
16:46
Additional comments on the sqlite3ExprIsConstantOrGroupBy() routine. No code changes. Closed-Leaf check-in: 8424492e user: drh tags: having-where-optimization
01:30
Fix typo in comment. No changes to code. check-in: 6674814a user: mistachkin tags: trunk
2017-05-01
20:07
Update this branch with latest trunk changes. check-in: 83b1e163 user: dan tags: server-edition
19:53
Remove an unnecessary branch. check-in: a3317959 user: drh tags: having-where-optimization
18:24
Enhance "PRAGMA integrity_check" to detect duplicate rowids within a leaf page. check-in: adcad37b user: dan tags: trunk
18:12
Clear the BTCF_ValidNKey flag set if a cursor is moved by sqlite3BtreeInsert(). Fix for [f68dc596c4]. check-in: a6727eef user: dan tags: trunk
17:04
Futher bug fixes to the function that determines when a materialized view can be reused. Closed-Leaf check-in: c64fe3a1 user: drh tags: materialized-view-reuse
16:37
Minor bug fixes and performance enhancement. check-in: b2aae559 user: drh tags: materialized-view-reuse
15:15
Initial implementation of an optimization that attempts to reuse the same materialization of a view on a self-join of the view. check-in: 478c34b9 user: drh tags: materialized-view-reuse
14:25
Update this branch with latest trunk changes. check-in: 11f4761c user: dan tags: schemalint
14:09
Add extra tests for the optimization on this branch. check-in: 4921cd95 user: dan tags: having-where-optimization
2017-04-29
20:53
Automatically transfer terms from the HAVING clause to the WHERE clause of an aggregate query in cases where the result of evaluating the term depends only one one or more of the GROUP BY expressions (and on no other inputs). check-in: 5375a3ce user: dan tags: having-where-optimization
19:29
Add a single testcase() macro to the subquery processing logic. check-in: 4e1df76e user: drh tags: trunk
18:02
Improvements to opcode documentation in the bytecode engine. No changes to code. check-in: e54c9f8d user: drh tags: trunk
15:48
Avoid reading the file-size before page 1 is read-locked. check-in: f6b025bf user: dan tags: server-edition
15:27
Evaluate WHERE clause terms that reference only the index before evaluating terms that require the table, and thereby avoid seeking the table row if index terms are false. This is called the "push-down" optimization in the MySQL world, we are told. check-in: d7bb79ed user: drh tags: trunk
14:56
Minor size and performance improvements to the push-down optimization. Closed-Leaf check-in: 91dfb61a user: drh tags: pushdown-optimization
2017-04-28
19:59
Within a loop that uses a non-covering index test, test non-indexed terms that can be tested without seeking the main table cursor before those that cannot. check-in: afe68f0a user: dan tags: pushdown-optimization
17:32
Fix various bugs revealed by running performance tests. check-in: a40b42c4 user: dan tags: server-edition
14:09
Add a missing releasePage() call to the server-mode free-list management code. check-in: a5a08548 user: dan tags: server-edition
10:20
Use a different free-list format for server-mode databases in order to reduce contention. check-in: 778e8a10 user: dan tags: server-edition
2017-04-27
14:12
Do not write master journal filenames into server-mode journal files. Use SQLITE_MUTEX_STATIC_APP1 to protect critical sections in server.c. check-in: 3144ae40 user: dan tags: server-edition
13:05
If possible, delete the journal file when a database connection is closed. check-in: d5b5326d user: dan tags: server-edition
2017-04-26
20:45
Experimental implementation of pessimistic page-level locking based on rollback mode. check-in: 64ecf7c7 user: dan tags: server-edition
17:21
Add new test file cachespill.test. check-in: 2d0b6431 user: dan tags: trunk
14:34
Replace <fts5.h> with "fts5.h" in test file fts5_test_tok.c. check-in: 63d9ca5c user: dan tags: trunk
04:32
Fix a subtle bug in Lemon discovered and reported on the mailing list by Kelvin Sherlock, who also suggested the correct fix. check-in: 304689f8 user: drh tags: trunk
2017-04-24
16:14
Bring in all the latest enhancements from trunk. check-in: 031feebc user: drh tags: apple-osx
14:16
When building an ephemeral table of integers, do not assume that the table does not already contain N if the insert cursor points to N-1. Fix for ticket [61fe9745]. check-in: 1c1b0862 user: dan tags: trunk
2017-04-22
00:20
Fix an assertion fault found by OSSFuzz. check-in: e39769f4 user: drh tags: trunk
2017-04-21
19:58
Another minor formatting fix. check-in: 9fa2ce3c user: dan tags: schemalint
19:56
Fix formatting errors in the previous commit. check-in: da9a2e5a user: dan tags: schemalint
19:53
Update the README.md file in the ext/expert/ directory. check-in: 3b2ff4e0 user: dan tags: schemalint
17:03
Remove a NEVER macro for a condition that may be true as of [a47efb7c]. Problem reported by OSSFuzz. check-in: bdc50d8d user: dan tags: trunk
16:04
Fix an FTS5 bug that could cause a prefix-query without a prefix-index on a database that contains delete-markers to return extra, non-matching, rows. check-in: 840042cb user: dan tags: trunk
2017-04-20
17:35
Merge latest trunk changes into this branch. check-in: b1533bc4 user: dan tags: schemalint
17:03
Avoid creating a temp table in the user database in the sqlite3_expert code. check-in: 4e366996 user: dan tags: schemalint
16:43
Speed this branch up a bit by filtering before the virtual table layer when sampling user data. Closed-Leaf check-in: 8e57c313 user: dan tags: schemalint-failure
16:18
Avoid adding INTEGER PRIMARY KEY columns to candidate indexes. check-in: 4577fea5 user: dan tags: schemalint
16:08
Avoid creating a temp table in the user database in the sqlite3_expert code. Trouble is, this makes sampling for stat1 data much slower. check-in: c62e3582 user: dan tags: schemalint-failure
09:54
Add an option to generate stat1 data based on a subset of the user database table contents to sqlite3_expert. check-in: c69c3e21 user: dan tags: schemalint
2017-04-19
13:25
Further improvements to coverage of fts3 module. check-in: 6b21d0fd user: dan tags: trunk
07:33
Further modifications and test cases to improve test coverage of fts3. check-in: ea8a0d2c user: dan tags: trunk
2017-04-18
20:10
Have sqlite3_expert_analyze() populate the sqlite_stat1 table before running queries through the planner for the second time. check-in: a157fcfd user: dan tags: schemalint
13:50
Use sqlite3_table_column_metadata() instead of a SELECT statement to check for the existence of a %_stat table in fts3. This leads to smaller and easier to test code. check-in: dc2a4802 user: dan tags: trunk
11:20
Improved optimizations of views as the right operand of a LEFT JOIN. check-in: 41c27bc0 user: drh tags: trunk
09:04
Fix sqlite3_expert handling of triggers on views. check-in: ff4976da user: dan tags: schemalint
05:49
Refactor the fts3ColumnMethod() function so that all branches can be covered. check-in: e47fdb49 user: dan tags: trunk
2017-04-17
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
17:03
Add support for analyzing trigger programs to the sqlite3_expert code. check-in: 159e8022 user: dan tags: schemalint
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
2017-04-16
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
2017-04-15
16:52
Fix problems with handling constraints on the rowid column in sqlite3expert.c. check-in: 2e630879 user: dan tags: schemalint
15:47
Merge latest trunk changes into this branch. check-in: 2d0c458e user: dan tags: schemalint
14:30
Add header comment for sqlite3_vtab_collation(). check-in: d238694c user: dan tags: schemalint
14:16
Fix memory leaks in the code on this branch. Make use of the sqlite3_index_constraint.usage field. Do not try to handle ORDER BY terms with explicit COLLATE clauses - they don't get passed to the vtab layer anyway. check-in: 0cd75a87 user: dan tags: schemalint
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
2017-04-14
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
19:41
Modify the code in ext/expert/ to use the vtab interface instead of sqlite3_whereinfo_hook(). Remove sqlite3_whereinfo_hook(). check-in: 3bb65850 user: dan tags: schemalint
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
2017-04-13
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
16:19
Update this branch with latest changes from trunk. check-in: 5fcd840c user: dan tags: schemalint
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
2017-04-12
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
2017-04-11
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
19:00
Update this branch with latest trunk changes. check-in: 0f66a093 user: dan tags: schemalint
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