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461 check-ins using file src/pager.c version ff1232b3

2019-09-03
19:40
Fix a buffer overread that could occur when running fts5 prefix queries inside a transaction. (Leaf check-in: b54aa18b user: dan tags: branch-3.18)
17:46
Disable the undocumented rtreenode() SQL function that is only used for testing, except when doing a build that is specifically intended for testing. (check-in: 0a1cce49 user: drh tags: branch-3.18)
2018-12-19
01:38
Add extra defenses against strategically corrupt databases to fts3/4. (check-in: 4bb21d82 user: drh tags: branch-3.18)
2017-07-21
07:56
Add new interfaces sqlite3_result_pointer(), and sqlite3_value_pointer() and use them to transfer the eponymous FTS3 column pointer to the snippet() and offsets() routines. This changes is a cherry-pick of [f0f49224] via [69906880cee] and is ultimately inspired by check-in [72de49f2]. (check-in: 8201f4e1 user: drh tags: branch-3.18)
2017-07-15
10:44
Add new interfaces sqlite3_bind_pointer(), sqlite3_result_pointer(), and sqlite3_value_pointer() used to safely move pointer values through SQL without exposing underlying memory address information. (Leaf check-in: d6a44b35 user: drh tags: branch-3.17)
2017-06-17
09:59
Version 3.18.2 (check-in: 036ebf72 user: drh tags: release, branch-3.18, version-3.18.2)
00:39
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]. Also increase the version number to 3.18.2. This is the release candidate. (check-in: e1b71029 user: drh tags: branch-3.18)
2017-06-16
13:41
Version 3.18.1 (check-in: 77bb4623 user: drh tags: release, branch-3.18, version-3.18.1)
12:15
An unintentional fork was created due to a typo when creating branch-3.18. This check-in resolves the fork and is the 3.18.1 release candidate. (check-in: 20e5ffb1 user: drh tags: branch-3.18)
2017-06-15
07:47
Increase the version number to 3.18.1. (check-in: 4be2eba8 user: drh tags: branch-3.18)
2017-06-12
23:44
Ensure pointer map entries are always added when a row that does use overflow pages replaces one that does not in an auto-vacuum database. Fix for [fda22108]. (check-in: 30c50f0e user: drh tags: branch-3.18)
2017-05-06
18:09
Fix an obscure assertion fault that can follow an OOM. The problem was introduced by check-in [a1cf44763277b6c7]. (check-in: 04e7e565 user: drh tags: trunk)
17:12
Fix requirements marks and harmless compiler warnings. (check-in: 198ff4c0 user: drh tags: trunk)
2017-05-04
14:02
Remove the tool/schemalint.tcl script. And related Makefile entries. It is superseded by sqlite3_expert. (check-in: 269bf52e user: dan tags: schemalint)
11:13
Fix a collision of the "B0" identifier name between the termios.h header file and the SHA3 implementation in the shell. (check-in: b9a58dac user: drh tags: trunk)
2017-05-03
19:36
Remove the unused "sqlite3_stack_used" TCL command from the test harness. (check-in: e24b7382 user: drh tags: trunk)
17:44
Fix the sqlite3GetInt32() function so that it correctly returns 0 on a zero-length input string. (check-in: 05eba9e3 user: drh tags: trunk)
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
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)
15:27
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. Do not confuse with WHERE-clause push-down. (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)
2017-04-26
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
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)
18:29
Fix a formatting issue in the output of the sqlite3_expert program. (check-in: cc8c3581 user: dan tags: schemalint)
18:06
Smaller and faster implementation of exprMightBeIndexed(). (check-in: 76cd611d user: drh tags: trunk)
17:43
Add header comments to the API functions in sqlite3expert.h. Include a list of all candidate indexes in the report output by the sqlite3_expert program. (check-in: 0c45c5eb user: dan tags: schemalint)
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)
2017-04-10
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)
20:00
Add ext/expert/README.md. (check-in: 9318f1b9 user: dan tags: schemalint)
16:13
Changes to allow the code in sqlite3expert.c to be tested directly (via the API in sqlite3expert.h) instead of by invoking the sqlite3_expert application. Fix memory leaks and other problems. (check-in: 5dd98317 user: dan tags: schemalint)
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)
2017-04-09
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)
08:38
Fix the -file option on the sqlite3_expert program. (check-in: 0857c48e user: dan tags: schemalint)
2017-04-08
19:00
Merge latest trunk with this branch. (check-in: e051e8f2 user: dan tags: schemalint)
18:56
Rename shell6.test to expert1.test. Have it invoke the sqlite3_expert binary if it is present. (check-in: be0deff9 user: dan tags: schemalint)
18:18
Disallow leading zeros on numeric constants in JSON. Fix for ticket [b93be8729a895a528e2] (check-in: 204e72f0 user: drh tags: trunk)
17:41
Use hash tables instead of in-memory database tables for a few purposes in sqlite3expert.c. (check-in: bf10e68d user: dan tags: schemalint)
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)
2017-04-07
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)
20:14
Refactor code to suggest indexes from the shell tool into an extension in ext/expert. Unfinished. (check-in: 305e19f9 user: dan tags: schemalint)
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)
2017-04-06
18:44
Changes to allow indexes to be recommended for queries on SQL views. (check-in: 0884ff1d user: dan tags: schemalint)
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)
2017-04-05
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)
2017-04-04
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)
17:50
Add some support for OR terms to sqlite3_whereinfo_hook(). (check-in: 5cd07000 user: dan tags: schemalint)
04:23
Add the sqlite3_whereinfo_hook() API - an experimental API replacing the DBCONFIG_WHEREINFO hack on this branch. (check-in: a54aef35 user: dan tags: schemalint)
2017-04-03
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)
2017-04-01
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)
2017-03-31
11:20
Merge latest trunk into this branch. (check-in: cb721d0b user: dan tags: schemalint)
2017-03-30
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)
2017-03-29
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)
2017-03-28
18:48
Version 3.18.0 (check-in: 424a0d38 user: drh tags: release, branch-3.18, version-3.18.0)
2017-03-25
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)
2017-03-24
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)
2017-03-23
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)
17:22
Do not run test file autoanalyze1.test if OMIT_VIRTUALTABLE is defined. (check-in: e1d06a57 user: dan tags: trunk)
17:03
Remove an invalid assert() statement failing when VACUUMing a database that contains an index on a column explicitly declared "COLLATE BINARY". (check-in: 9f2e04d3 user: dan tags: trunk)
12:56
Avoid redundant edits in the json_merge_patch() function. (check-in: 4a8e6437 user: drh tags: json_mergepatch)
00:46
Fix harmless compiler warnings in the new json_merge_patch() logic. (check-in: 5d2cf5a2 user: drh tags: json_mergepatch)
00:13
Various fixes to the json_merge_patch() function. (check-in: f49fd255 user: drh tags: json_mergepatch)
2017-03-22
21:45
Change the name of the new function to "json_merge_patch()". (check-in: 53bf70f3 user: drh tags: json_mergepatch)
21:24
Initial implementation of the json_mergepatch(A,B) SQL function. (check-in: a2674440 user: drh tags: json_mergepatch)
12:51
Fix harmless compiler warnings in the shell. (check-in: a7868297 user: drh tags: trunk)
2017-03-21
20:17
New simplified memory initialization for MacOS. (check-in: 055b36f1 user: drh tags: trunk)
18:56
Fix an incorrect assert in the ANALYZE logic for STAT4 on WITHOUT ROWID tables. (check-in: ad741976 user: drh tags: trunk)
17:19
Add short script ext/fts3/tool/fts3cov.sh. To help measure test-coverage of fts3 source code. (check-in: ee9588e8 user: dan tags: trunk)
10:45
Do not run sync2.test as part of the "inmemory_journal" permutation. (check-in: 9f680bc7 user: dan tags: trunk)
2017-03-20
22:58
Add the --native-malloc option to fuzzcheck. Fix ossfuzz.c and fuzzcheck.c so that they both deallocate the temp_store_directory before closing. (check-in: 0dd18ec8 user: drh tags: trunk)
20:42
Fix the fuzzcheck program so that it can create new databases again. (check-in: 021e8874 user: drh tags: trunk)
19:35
Avoid passing NULL as the second argument to memcpy() in fts3. (check-in: 49b93d97 user: dan tags: trunk)
19:26
Avoid a technically undefined right-shift of a signed value in rtree.c. (check-in: a144875f user: dan tags: trunk)
18:53
Fix some problems in fts3 found by address-sanitizer. (check-in: 16a8e84f user: dan tags: trunk)
16:34
Avoid the possibility of signed integer overflow with oversized precisions in %d conversions in the printf() implementation. (check-in: ef3a7c87 user: drh tags: trunk)
16:06
Do not run sync2.test as part of the "journaltest" permutation, as it uses "PRAGMA synchronous = off". (check-in: 285005a9 user: dan tags: trunk)
15:29
Ensure that a "--" prefix is added to sqlite3_trace_v2() output for nested SQL statements. (check-in: 673a7b67 user: drh tags: trunk)
15:11
Only run sync2.test on unix, as it depends on instrumentation in os_unix.c. (check-in: ecb9321e user: dan tags: trunk)
14:44
Fix the check.test script so that it works on Windows. (check-in: 8822eb5d user: drh tags: trunk)
13:03
Documentation fix: SQLITE_SOURCE_ID is a now a SHA3-256 hash. (check-in: 2aa22509 user: drh tags: trunk)
2017-03-18
13:59
Only do the specialized MacOS single-core zone_malloc initialization if compiled with the SQLITE_MIGHT_BE_SINGLE_CORE flag. This avoids a (harmless) warning about OSAtomicCompareAndSwapPtrBarrier() being deprecated. (check-in: 4e6a03d9 user: drh tags: trunk)
2017-03-17
23:08
Fix an error in the newly revised documentation for SQLITE_LIMIT_VDBE_OP. No changes to code. (check-in: f4cf8635 user: drh tags: trunk)
22:51
Set a reasonable limit on the number of opcodes in a prepared statement for ossfuzz.c. This should prevent timeouts in OSS-Fuzz when it generates totally unreasonable queries. (check-in: f74899ed user: drh tags: trunk)
22:50
Begin enforcing the SQLITE_LIMIT_VDBE_OP. The documentation warned that this day might come. (check-in: ef591461 user: drh tags: trunk)
14:59
Add the --show-errors and --show-max-delay command-line options to the ossshell test program. (check-in: 626bdca9 user: drh tags: trunk)
14:15
Fix the Makefile.in so that it builds the ossshell test program correctly. (check-in: 36f5602e user: drh tags: trunk)
13:59
Fix a buffer overread in debugging routine sqlite3VdbeMemPrettyPrint(). Problem discovered by OSS-Fuzz. (check-in: f336fba7 user: dan tags: trunk)
03:21
Fix a problem in the enhanced PRAGMA integrity_check where it verifies CHECK constraints: Do not be confused by the reuse of the Table.pCheck field by VIEWs with named columns. Problem discovered by OSS-Fuzz. (check-in: 019dd3d5 user: drh tags: trunk)
2017-03-16
18:55
If the user has not set it explicitly, set the "PRAGMA synchronous" setting to SQLITE_DEFAULT_SYNCHRONOUS when a database connection changes from wal to rollback journal mode. (check-in: 5c604479 user: dan tags: trunk)
18:54
Fix a typo causing the build to fail if SQLITE_DEFAULT_SYNCHRONOUS==SQLITE_DEFAULT_WAL_SYNCHRONOUS. (Closed-Leaf check-in: df39adea user: dan tags: default-synchronous-fix)
18:14
If the user has not set it explicitly, set the "PRAGMA synchronous" setting to SQLITE_DEFAULT_SYNCHRONOUS when a database connection changes from wal to rollback journal mode. (check-in: 78030c0f user: dan tags: default-synchronous-fix)
14:28
Simplified OOM detection in the instr() SQL function. (check-in: 6d85eb57 user: drh tags: trunk)
13:30
Fix an uninitialized variable reference in the text generator for "PRAGMA vdbe_trace=ON" output. Problem discovered by OSS-Fuzz. (check-in: e3d48716 user: drh tags: trunk)
13:14
Fix a problem in the "showdb" utility that prevents it from correctly decoding cells with no content beyond the record header. (check-in: eb7680a1 user: drh tags: trunk)
12:11
Fix a crash that could follow an OOM condition in the instr() SQL function. Problem discovered by OSS-Fuzz. (check-in: 6e59e903 user: dan tags: trunk)
2017-03-15
20:27
Updates to README files under the ext/ hierarchy. No changes to code. (check-in: 029bc5d2 user: drh tags: trunk)
19:11
Add the "Obtaining The Code" subsection in the top-level README.md file. No changes to code. (check-in: b1b1aa8b user: drh tags: trunk)
14:20
Mention the ".selftest" command in the ".help" output of the CLI. (check-in: 37f766db user: drh tags: trunk)
14:04
Make "PRAGMA temp.synchronous=N" a no-op to ensure that the TEMP schema always has synchronous=OFF. This fixes an issue discovered by OSS-Fuzz. (check-in: bcf6bb08 user: drh tags: trunk)
13:47
Improved header comment on the shathree.c extension. No changes to code. (check-in: 84f2e3d5 user: drh tags: trunk)
2017-03-14
15:27
Updates to the MSVC makefiles. (check-in: 1e4b9e7c user: mistachkin tags: trunk)
2017-03-13
22:10
Add the dbdump.c extension that implements functionality similar to the ".dump" command of the CLI, though in a separate library. (check-in: 2b9980a2 user: drh tags: trunk)
22:02
Add dbdump.exe to the MSVC makefile. (Closed-Leaf check-in: 59241a50 user: drh tags: dbdump)
21:49
Fixes to the dump logic. All appears to be working in preliminary tests. (check-in: 007b11e3 user: drh tags: dbdump)
21:26
First draft of the complete dbdump.c library. (check-in: 84ea4fcc user: drh tags: dbdump)
19:26
Infrastructure for an extension C-library to implement sqlite3_db_dump() and a corresponding "dbdump" command-line utility - both of which do the same work as the ".dump" command of the CLI. (check-in: 74c5ace4 user: drh tags: dbdump)
18:24
In the output of the ".dump" command in the CLI, quote newline and carriage-return characters using the char() function, so that they do not get eaten by end-of-line processing logic in the OS or in other command-line utilities and/or libraries. (check-in: 68f6dc7a user: drh tags: trunk)
17:37
Fix the sqlite3TreeViewSelect() routine so that it works with a null pointer to the Select object. (check-in: 9034cf7e user: drh tags: trunk)
14:30
Fix a segfault that could occur following an OOM error in the flattenSubquery() routine. (check-in: c6dda3f7 user: dan tags: trunk)
13:45
In the OSSFuzz test module, invoke the progress handler much more frequently so that timeouts are detected punctually even if the test script is running opcodes that individually take a long time (for example, an OP_Function opcode that invokes "randomblob(1.5e6)"). (check-in: f3b6959c user: drh tags: trunk)
2017-03-12
20:28
Fix a possible NULL pointer dereference in following an OOM error in sqlite3ExprIsInteger(). Problem found by OSS-Fuzz. (check-in: 5ec655e8 user: drh tags: trunk)
19:39
Remove an obsolete assert() in the IN operator code generation. (check-in: 18bf6aca user: drh tags: trunk)
2017-03-11
13:02
Make sure the translateColumnToCopy() routine in the query planner does not try to access an array that failed to be fully allocated due to a prior OOM. This fixes an issue discovered by OSSFuzz. (check-in: 3299a261 user: drh tags: trunk)
01:56
The output of the ".dump" command in the CLI quotes newline and carriage-return characters using "char(10)" and "char(13)". (Closed-Leaf check-in: 8b2954dd user: drh tags: string-quoting-dump)
00:46
Increase the number of significant digits in floating point literals on ".dump" output from the shell. (check-in: 7359fcac user: drh tags: trunk)
2017-03-10
18:36
Remove the rbu_round_trip.tcl script. It is now part of project "test-dbs". (check-in: b5bf2957 user: dan tags: trunk)
17:03
Fix an error in the SQLITE_MAX_MEMORY implementation resulting from a bad merge. Update the OSSFuzz interface so that it times out after running the byte-code engine for 10 seconds. (check-in: f8560c60 user: drh tags: trunk)
16:22
Add the -DSQLITE_MAX_MEMORY=N compile-time option. The default is no limit. (check-in: eabd4ef4 user: drh tags: trunk)
15:55
Add the SQLITE_MAX_MEMORY compile-time option that provides a hard upper bound on the amount of memory that SQLite will use, per process. (Closed-Leaf check-in: 77dfe2ab user: drh tags: max-memory-option)
14:36
Enhance the ".stats" dot-command in the CLI to use sqlite3_status64() instead of sqlite3_status(). (check-in: 118f5c05 user: drh tags: trunk)
01:05
Improvements to ".selftest --init". Tests are number in increments of 10 starting with 100. The tests are generated inside a SAVEPOINT. Errors are reported during test generation. Tests can be appended to existing tests. Add a test case to verify the schema. (check-in: b044b152 user: drh tags: trunk)
2017-03-09
22:00
Remove the test/dbselftest.c program. In its place, add the ".selftest" command to the CLI. The new CLI version is .selftest is slightly different in that it uses SHA3 hashing instead of SHA1, so the new is subtly incompatible with the old. (check-in: f4fcd46f user: drh tags: trunk)
18:13
Fix the ".dump" command to correctly extract tail data from corrupt WITHOUT ROWID tables. (check-in: 6c627e50 user: drh tags: trunk)
16:32
Add the --recovery-mode option to the CLI ".dump" command. This involves enhancing the "PRAGMA reverse_unordered_selects" command to accept a "TOGGLE" option. Recovery mode used to be always on. Now it is opt-in. Not sure this is the correct approach. Also not sure if TOGGLE is a good feature to have on boolean PRAGMA statements. (Closed-Leaf check-in: 5dc82a15 user: drh tags: dump-recovery)
13:50
Begin moving separate boolean variables in the ShellState object of the CLI into the shellFlgs bitmask. (check-in: 50eec5d9 user: drh tags: trunk)
2017-03-08
23:29
Refactor the output logic in the CLI. Not sure we want to go this way. Just saving the work for historical reference, or in case I decide to come back to it. (Leaf check-in: aacac906 user: drh tags: shell-print-refactor)
18:06
Make sure the database connection is open prior to running the ".sha3sum" command. (check-in: 2ea300fb user: drh tags: trunk)
17:56
In the ".sha3sum" command, if there is a LIKE pattern, show the hashes for each table separately. Without a LIKE pattern, show a single hash over the entire database. (check-in: 30f87883 user: drh tags: trunk)
16:10
Add the ".sha3sum" command to the CLI - used to compute a cryptographic hash of the content of a database file or of individual tables with in that file. (check-in: fc663799 user: drh tags: trunk)
15:03
Improved comments explaining the sha3_query() format. Fix a performance #ifdef error in the sha3 implementation. (check-in: 54ef7abd user: drh tags: trunk)
13:50
Add the shathree.c extension for implementing SHA3() and SHA3_QUERY() SQL functions. (check-in: f7ca9193 user: drh tags: trunk)
12:25
In the CLI, avoid unnecessary identifier quoting in the ".dump" output. Also add new ".dump" test cases. (check-in: de65f907 user: drh tags: trunk)
11:44
Add the --preserve-rowids option to the ".dump" command in the CLI. (check-in: c60aee24 user: drh tags: trunk)
2017-03-07
20:03
Add test script ext/rbu/rbu_round_trip.tcl. Uses "dbselftest" to test that "rbu" and "sqldiff" work together. (check-in: 961e79da user: dan tags: trunk)
14:47
Before beginning an incremental checkpoint in RBU, sync the directory containing the target database file. This ensures that the new directory entry created by renaming the *-oal file to *-wal is synced to disk. Cherrypick of [915a9a28]. (Leaf check-in: 694fe0b2 user: dan tags: version-3.17.0-rbu-fixes)
14:46
Fix another RBU case similar to the previous. This one for systems where the sector-size is larger than the page-size. Cherrypick of [4012bb3a]. (check-in: 59a11b7f user: dan tags: version-3.17.0-rbu-fixes)
14:45
When saving the state of an RBU update in the incremental-checkpoint phase, sync the database file. Otherwise, if a power failure occurs and the RBU update resumed following system recovery, the database may become corrupt. Cherrypick of [edee6a80]. (check-in: 811a5599 user: dan tags: version-3.17.0-rbu-fixes)
14:38
Performance optimization in the tokenizer/parser loop. (check-in: 2cb71583 user: drh tags: trunk)
12:18
Minor comment typo fixes. No changes to code. (check-in: 01cd9fb1 user: drh tags: trunk)
03:40
More size and speed improvements in the expression name resolver. (check-in: e0a3d39f user: drh tags: trunk)
03:25
Small size reduction and performance increase in the name resolver routine for expressions. (check-in: 1a3554e1 user: drh tags: trunk)
2017-03-06
23:51
Make the default MASK argument for "PRAGMA optimize" be 0xfffe, to allow for future expansion of up to 14 new default-on optimizations. (check-in: 73019a8b user: drh tags: trunk)
20:44
Fix a typo in a comment. No changes to code. (check-in: ec529bf1 user: drh tags: trunk)
17:33
Add an initial implementation of the "PRAGMA optimize" command. (check-in: 137aeb2b user: drh tags: trunk)
11:39
Merge updates from trunk. (Closed-Leaf check-in: 5f7fc79a user: drh tags: auto-analyze)
2017-03-03
21:51
If a reprepare is needed after binding to a variable with a number larger than 32, set only the high-order bit of the Vdbe.expmask rather than setting all bits. This could potentially result in fewer false-positive reprepares. (check-in: 45797fee user: drh tags: trunk)
21:36
Remove an redundant function call from the date/time function implementation. (check-in: 4a04c48a user: drh tags: trunk)
20:43
Fix another corner-case for the 'start of ...' modifier in the date/time functions. Related to ticket [6097cb92745327a1]. (check-in: 8831f439 user: drh tags: trunk)
20:02
Fix a case introduced by [4cd2a967] where a corrupt database could cause a buffer overwrite. (check-in: 5d0455fe user: dan tags: trunk)
16:51
Before beginning an incremental checkpoint in RBU, sync the directory containing the target database file. This ensures that the new directory entry created by renaming the *-oal file to *-wal is synced to disk. (check-in: 915a9a28 user: dan tags: trunk)
2017-03-02
23:40
Fix a bug in the 'start of ...' date/time modifiers when they follow a julian day number. Fix for ticket [6097cb92745327a1]. (check-in: 081dbcfb user: drh tags: trunk)
16:56
Fix another RBU case similar to the previous. This one for systems where the sector-size is larger than the page-size. (check-in: 4012bb3a user: dan tags: trunk)
14:51
When saving the state of an RBU update in the incremental-checkpoint phase, sync the database file. Otherwise, if a power failure occurs and the RBU update resumed following system recovery, the database may become corrupt. (check-in: edee6a80 user: dan tags: trunk)
14:17
Add an optional bitmask of allowed optimizations on the "PRAGMA optimize" command. The 0x01 bit is Debug Mode. (check-in: a35388ee user: drh tags: auto-analyze)
13:22
Merge recent trunk enhancements. (check-in: c60cdb47 user: drh tags: auto-analyze)
13:13
Make sure the Vdbe.expmask value is set correctly in sqlite3VdbeSwap(). This fixes a problem introduced by [a8fd7052]. (check-in: 29f54b89 user: drh tags: trunk)
2017-03-01
11:30
Fix a use-after-free problem in the shell tool code that could occur if an SQL statement were executed after an ".open" command with invalid options. (check-in: ac760db0 user: dan tags: trunk)
2017-02-27
17:16
Make PATH handling more robust in the batch tools for MSVC. (check-in: 23a8917e user: mistachkin tags: trunk)
17:06
Improve performance of fts5 writes by writing the "averages" record once at the end of each transaction instead of every time the table is updated. (check-in: 2b210d69 user: dan tags: trunk)
16:15
Add an sqlite3_set_last_insert_rowid() method. Use it to work around fts4 and fts5 modifying the last-insert-rowid unintuitively from within commit processing. (check-in: 952a3906 user: dan tags: trunk)
14:52
Add an sqlite3_set_last_insert_rowid() method. Use it to work around fts4 and fts5 modifying the last-insert-rowid unintuitively from within commit processing. (Closed-Leaf check-in: fe41bb56 user: dan tags: set-last-insert-rowid)
12:23
Remove references to special handling in virtual table methods from the documentation for sqlite3_last_insert_rowid(). (check-in: 660f9569 user: dan tags: trunk)
2017-02-25
20:57
Add an 'extern "C"' block to header file sqlite3userauth.h. (check-in: ffd61fb4 user: dan tags: trunk)
17:47
Optimize defragmentPage() in the case where the page contains either one or two free-blocks and a small number of fragmented bytes. (check-in: 4cd2a967 user: dan tags: trunk)
16:24
Tweak the code on this branch to detect b-tree page corruption in the same cases as the trunk. (Closed-Leaf check-in: f9863b39 user: dan tags: defragmentpage-opt)
2017-02-24
19:58
Optimize defragmentPage() in the case where the page contains either one or two free-blocks and a small number of fragmented bytes. (check-in: 202b1c02 user: dan tags: defragmentpage-opt)
2017-02-23
16:30
Save a few bytes and a few cycles by setting Vdbe.expmask to zero for statements prepared using legacy interface sqlite3_prepare(). (check-in: a8fd7052 user: dan tags: trunk)
02:15
Add two NEVER() operators in the sqlite3BtreeRowCountEst() routine. (check-in: 7a959f6d user: drh tags: auto-analyze)
00:58
Do a single OP_Expire at the very end of "PRAGMA optimize", and omit the OP_Expire on ANALYZE commands invoked by the pragma. (check-in: 188300a3 user: drh tags: auto-analyze)
2017-02-22
20:24
Change the name of the analyze_as_needed pragma to "optimize". Enhance the comment (which will become documentation, assuming these changes land on trunk) to explain that the optimize pragma is likely to be enhanced in various ways in future releases and that applications should not depend upon the current behavior. (check-in: 9fced545 user: drh tags: auto-analyze)
19:49
Merge integrity_check and other improvements from trunk. (check-in: fe073905 user: drh tags: auto-analyze)
19:41
Move a branch condition in analyze.c inside an #ifdef SQLITE_ENABLE_STAT4 block. (check-in: d6afd98d user: dan tags: trunk)
19:27
Improve the performance of ANALYZE when SQLITE_ENABLE_STAT4 is defined. (check-in: 737a8244 user: dan tags: trunk)
18:53
Improvements to PRAGMA integrity_check. Verify CHECK constraints. Verify NOT NULL constraints even on table that lack indexes. Verify CHECK and NOT NULL constraints with PRAGMA quick_check. (check-in: aa02bd3c user: drh tags: trunk)
18:04
Cleanup and simplification of the output row count limit control of PRAGMA integrity_check. (Closed-Leaf check-in: 5af7d72e user: drh tags: integrity-check-improvements)
15:11
Fix integrity_check so that it verifies NOT NULL constraints even for tables that have no indexes. Enhance quick_check so that it verifies NOT NULL and CHECK constraints. (check-in: 5264844b user: drh tags: integrity-check-improvements)
14:15
Enhance "PRAGMA integrity_check" so that it verifies CHECK constraints. (check-in: 549bae08 user: drh tags: integrity-check-improvements)
2017-02-21
21:24
In sqlite3VdbeHalt(), return as soon as possible if Vdbe.magic!=VDBE_MAGIC_RUN. This makes sqlite3_reset() slightly faster in some cases. (check-in: 80adc0cb user: dan tags: trunk)
17:52
Fix an FTS5 problem that could cause a crash when certain queries were interrupted using sqlite3_interrupt(). (check-in: e400909f user: dan tags: trunk)
15:27
Very small enhancement to dispatch speed for SQL functions. (check-in: 3c3228ed user: drh tags: trunk)
14:04
The VDBE cycle counts for the sqlite3_progress_handler() callback are now cumulative. Leftovers from the previous statement are applied to the next statement. (Leaf check-in: 7a62fc6a user: drh tags: cumulative-progress-count)
13:29
Proof of concept for a "PRAGMA vdbe_cycle_limit=N" command. When N>0, invoke sqlite3_interrupt() whenever any byte code program uses more than N virtual machine cycles. (Leaf check-in: 9626b41e user: drh tags: vdbe_cycle_limit)
2017-02-20
23:32
Correct a harmless typo in the previous check-in. (check-in: 1589db01 user: mistachkin tags: trunk)
19:13
Avoid unsigned integer overflows for SQLITE_WIN32_HEAP_INIT_SIZE when the Win32 heap subsystem is used with very large values of SQLITE_DEFAULT_CACHE_SIZE and/or SQLITE_DEFAULT_PAGE_SIZE. (check-in: 96b6a98e user: mistachkin tags: trunk)
14:30
Small grammar simplification. (check-in: 0d8a868a user: drh tags: trunk)
13:11
Merge fixes from trunk. (check-in: ff213f2e user: drh tags: auto-analyze)
2017-02-18
22:52
Updated comments. No code changes. (check-in: e842ad39 user: drh tags: auto-analyze)
20:05
Add an optimization to OP_Column to speed up sequential OP_Column instructions that read earlier fields from the same cursor. Attempt to reorder OP_Column opcodes so as to take advantage of this. (Leaf check-in: c1adf959 user: dan tags: sort-column-opcodes)
15:58
Add the OP_SqlExec opcode and use it to implement "PRAGMA analyze_as_needed", invoking ANALYZE subcommands as necessary. This simplifies the implementation. (check-in: d386015f user: drh tags: auto-analyze)
13:47
Add the SQLITE_BUG_COMPATIBLE_20160819 compile-time option to omit the error message when an unrecognized argument is provided to the VACUUM command. (check-in: 49181427 user: drh tags: trunk)
02:42
Fix errors in the table resize detection. (check-in: 4229caec user: drh tags: auto-analyze)
02:19
In the analyze_as_needed pragma, avoid running unnecessary OP_LoadAnalysis and OP_Expire opcodes. Make the analyze_as_needed pragma responsive to the schema name. (check-in: 882599a4 user: drh tags: auto-analyze)
2017-02-17
23:52
Fix the #endif location for an #ifndef SQLITE_UNTESTABLE macro in the command-line shell. (check-in: 8cc9d74c user: drh tags: trunk)
19:24
The analyze_as_needed pragma now responds to table size growth and will automatically rerun the analysis after each 10x size increase. (check-in: bfbdd074 user: drh tags: auto-analyze)
16:26
Add the "PRAGMA analyze_as_needed" command. (check-in: e93db237 user: drh tags: auto-analyze)
15:26
Set the TF_StatsUsed flag on tables when the query planner outcome is affected by the sqlite_stat1 data. Also, change the column names of the "PRAGMA stats" command so that they are not keywords. (check-in: fb2b8ae8 user: drh tags: auto-analyze)
13:38
Enhance the Index and Table objects so that they remember if their stats come from the sqlite_stat1 table. Make the "PRAGMA stats" an SQLITE_DEBUG only pragma. Add the flags column to "PRAGMA stats". These are all preliminary steps toward a "PRAGMA analyze_ifneeded;" feature. (check-in: 85026c8e user: drh tags: auto-analyze)
02:07
Merge fixes from trunk. (Leaf check-in: 662e8ccf user: drh tags: increased-sorting-cost)
02:04
Fix a test case that was made to fail by the LIKE optimization enhancement in check-in [158290c0ab] but which went unnoticed because test builds were running with ICU enabled and ICU disables the LIKE optimization. (check-in: 218b2bbb user: drh tags: trunk)
01:43
Enable the ".wheretrace" and ".selecttrace" extensions in the command-line shell when compiled on Windows using DEBUG=3 or higher. Fix a harmless warning in the shell that comes up when compiled this way. (check-in: 8a03be1d user: drh tags: trunk)
2017-02-16
21:29
Increase the estimated cost of sorting when sorting wide results sets, to account for the extra storage space and I/O required for the external sort. (check-in: aa0703e5 user: drh tags: increased-sorting-cost)
20:52
Change the name of WhereInfo.pDistinctSet to pResultSet, since it is now used for more than just DISTINCT processing. (check-in: 9fc5cd50 user: drh tags: trunk)
17:18
Change two MallocZero() calls into MallocRaw() to avoid unnecessary memset(). (check-in: ff5e733c user: drh tags: trunk)
16:26
Fix a comment on a field of the ExprList object. No changes to code. (check-in: bb8e2642 user: drh tags: trunk)
15:57
Increase Table.tabFlags from 8 to 32 bits. (check-in: 7e14044c user: drh tags: trunk)
15:06
Remove two redundant initializations from the virtual table logic. (check-in: 6bd82b95 user: drh tags: trunk)
14:48
Always use the IsVirtual() macro to determine if a Table object is a virtual table. Slightly smaller and faster code. (check-in: 6affb1c8 user: drh tags: trunk)
14:02
Merge recent enhancements from trunk. (check-in: 325ccfa9 user: drh tags: est_count_pragma)
2017-02-15
22:36
Query planner optimization to detect empty tables in a join early and bail out without doing excess work. (check-in: 58797e9b user: drh tags: trunk)
18:30
Minor enhancement to mutex tracing on Win32. (check-in: 830b9235 user: mistachkin tags: trunk)
17:47
simple test cases for carray_asc. (Leaf check-in: 1d4759c1 user: drh tags: carray_asc)
16:11
Add the companion "carray_asc" table-valued function to the carray extension. (check-in: a2b4f60b user: drh tags: carray_asc)
16:04
Bummer. Checked this in as a branch off of the wrong branch.... Was: Add the companion "carray_asc" table-valued function to the carray extension. (Closed-Leaf check-in: 396b9d99 user: drh tags: mistake)
15:11
Remove the CLANG_VERSION macro, since we have learned that version numbers in clang are "marketing" and are inconsistent and unreliable. Builds using clang will still use the GCC_VERSION macro since clang works hard to be gcc compatible. (check-in: 8d3f485d user: drh tags: branch-3.17)
15:09
Remove the CLANG_VERSION macro, since we have learned that version numbers in clang are "marketing" and are inconsistent and unreliable. Builds using clang will still use the GCC_VERSION macro since clang works hard to be gcc compatible. (check-in: 810d2932 user: drh tags: trunk)
04:16
Further reforms to Tcl_*Alloc() usage. (check-in: ee1e6896 user: mistachkin tags: trunk)
01:39
In the blob test code, avoid crashing on low-memory systems by using Tcl_AttemptAlloc(). (check-in: 1d267757 user: mistachkin tags: trunk)
01:02
Make SQLITE_GET_MUTEX_TIME a proper noop on non-Win32/non-POSIX. (Leaf check-in: 4ca2b2f8 user: mistachkin tags: mutexDbg2)
00:52
Another compilation fix for POSIX. (check-in: 82ef47ea user: mistachkin tags: mutexDbg2)
00:45
Make fine time granularity work on POSIX. (check-in: 79057716 user: mistachkin tags: mutexDbg2)
00:02
Compilation fix for POSIX. (check-in: 9964ad24 user: mistachkin tags: mutexDbg2)
2017-02-14
23:58
Experimental enhancements to mutex debugging. (check-in: 80481754 user: mistachkin tags: mutexDbg2)
21:47
Clarification of the help text for the command-line shell. (check-in: ca4f1e49 user: drh tags: trunk)
20:00
Enable the SQLITE_ENABLE_NULL_TRIM option for WITHOUT ROWID tables. (check-in: 54836270 user: drh tags: trunk)
16:30
More realistic lengths of string values in speedtest1 with --testset orm. (check-in: e4731fd6 user: drh tags: trunk)
15:58
Fix a testcase number on the ORM testset of speedtest1. (check-in: 58b2f911 user: drh tags: trunk)
15:57
Add the new "--testset orm" to the speedtest1 utility. (check-in: 1836adc1 user: drh tags: trunk)
2017-02-13
16:02
Version 3.17.0 (check-in: ada05cfa user: drh tags: release, version-3.17.0, branch-3.17)
13:35
Change all legacy instances of "#if SQLITE_DEBUG" to "#ifdef SQLITE_DEBUG" for consistency. (check-in: 670f10b2 user: drh tags: trunk)
13:26
Fix typos in using the MSVC_VERSION macro. (check-in: f3b65926 user: drh tags: trunk)
13:20
Avoid a duplication #define in FTS5 (check-in: c447441c user: drh tags: trunk)
11:35
Fix typos in using the MSVC_VERSION macro. (check-in: 25ebadd0 user: drh tags: branch-3.17)
2017-02-11
15:02
Ensure that indexed expressions with collating sequences are handled correctly. Fix for ticket [eb703ba7b50c1a5] backported from trunk. (check-in: b2e49ae3 user: drh tags: branch-3.17)
14:59
Fix indexes on expressions so that they can be actually used with a COLLATE clause. (check-in: e464b919 user: drh tags: trunk)
13:51
Ensure that indexed expressions with collating sequences are handled correctly. Proposed fix for ticket [eb703ba7b50c1a5]. (check-in: 9689d04b user: drh tags: trunk)
2017-02-10
21:40
Bump the version number up to 3.18.0. (check-in: 7520c238 user: drh tags: trunk)
21:37
Enhance the LIKE optimization so that it works for arbitrary expressions on the LHS as long as the pattern on the RHS does not begin with a digit or a minus sign. (check-in: 158290c0 user: drh tags: trunk)
19:38
Add the "," flag to printf(). (check-in: 064445b1 user: drh tags: trunk)
17:38
Version 3.17.0 release candidate (check-in: ad867e87 user: drh tags: branch-3.17)
2017-02-09
17:12
Cleanup the usage of the SQLITE_DISABLE_INTRINSIC compile-time option. Remove the SQLITE_RUNTIME_BYTEORDER compile-time option. Use -DSQLITE_BYTEORDER=0 instead. Fix a bug in R-Tree that occurs when compiling on a known little-endian machine without the use of intrinsic byteswapping functions. (check-in: 798fb9d7 user: drh tags: trunk)
2017-02-08
19:12
Avoid preparing a SELECT statement each time an UPDATE or DELETE by docid is executed against an fts3 table. (check-in: 1afec575 user: dan tags: trunk)
19:10
Avoid preparing a SELECT statement each time an UPDATE or DELETE by docid is executed against an fts3 table. (Leaf check-in: 9962c10a user: dan tags: fts3-seekstmt-cache)
18:13
Typo fixes in comment. No changes to code. (check-in: c09dd5c0 user: mistachkin tags: trunk)
16:01
Always invoke the xRoundup() method of the memory allocator before calling xMalloc(). (check-in: 77b470b0 user: drh tags: trunk)
12:18
Round up the size of all memory allocations to a multiple of 8 bytes when using the system memory allocator. (check-in: c46e06fa user: drh tags: trunk)
2017-02-07
21:44
When generating the hash on the sqlite_master table in dbselftest, use an ORDER BY clause, since the sqlite_master table is reordered by VACUUM. (check-in: c8bfd99b user: drh tags: trunk)
21:09
MSVC makefile enhancments for several command line tools and the session extensions. (check-in: fc1dfe87 user: mistachkin tags: trunk)
21:00
Fix harmless compiler warnings in dbfuzz. (check-in: 61242267 user: drh tags: trunk)
20:57
Fix harmless compiler warnings in kvtest.c (check-in: db6b3993 user: drh tags: trunk)
20:51
The dbselftest utility now generates hashes in the selftest table with --init. It also accepts multiple database files on the command-line. (check-in: e68829c9 user: drh tags: trunk)
19:36
Omit fts5fault1.test from the inmemory_journal permutation. (check-in: cb1e83f9 user: dan tags: trunk)
19:23
Update a test parameter in malloc5.test to account for the increase in default lookaside buffer size. (check-in: be82d5ae user: dan tags: trunk)
17:36
Add the initial version of the "dbselftest" utility program. (check-in: 1fcac836 user: drh tags: trunk)
16:15
Update an error message in corruptC.test. (check-in: 722e57fe user: dan tags: trunk)
14:45
Fix a build problem affecting non-amalgamation rtree builds. (check-in: bb7f445b user: dan tags: trunk)
14:22
Fix a test case to account for the fact that sqlite3_blob_reopen() now returns SQLITE_IOERR_NOMEM instead of SQLITE_NOMEM if an OOM occurs in the VFS layer. (check-in: e11cc523 user: dan tags: trunk)
13:51
Fix SQLITE_BYTEORDER #defines in R-Tree when compiled separately from the amalgamation. (check-in: a136609c user: drh tags: trunk)
12:58
Make the cellMargin() routine of R-Tree slightly smaller and faster while also fixing a harmless compiler warning. (check-in: 07fe6228 user: drh tags: trunk)
03:44
Back out [ec8ff892ac] which is causing missed OOM errors on some tests. (check-in: 0611770d user: drh tags: trunk)
00:55
Fix a minor typo in a comment in R-Tree. No changes to code. (check-in: f77ee9e9 user: drh tags: trunk)
2017-02-06
16:52
Remove a small amount of unnecessary code from R-Tree. (check-in: e5aea894 user: drh tags: trunk)
15:27
Add the "max-limits" utility program to the tools/ subdirectory. (check-in: c54173b6 user: drh tags: trunk)
07:37
Fix a bug in kvtest causing "init --variance 0" runs to generate single byte blob values only. (check-in: 6b0276f9 user: dan tags: trunk)
01:19
Remove incorrect testcase() macros from R-Tree. (check-in: 853a58a7 user: drh tags: trunk)
2017-02-04
20:15
Simplification to the error handling to extension loading in sqlite3_open(). (check-in: ec8ff892 user: drh tags: trunk)
17:33
Allow sqlite3session_apply() to apply changesets to tables that have been extended using ALTER TABLE ADD COLUMN. (check-in: b20ff81f user: dan tags: trunk)
14:30
Merge the latest trunk changes, especially the RTREE enhancement to use sqlite3_blob objects. (Leaf check-in: 61bd2a88 user: drh tags: sqlite3_blob_reset)
14:24
In RTREE, use an sqlite3_blob object rather than an sqlite3_stmt object for reading content out of the %_node shadow table. (check-in: 97ccf3e4 user: drh tags: trunk)
13:12
Close sqlite3_blob objects on xSync rather than waiting until xCommit. (Closed-Leaf check-in: 95ee745f user: drh tags: rtree-blob-agressive-release)
2017-02-03
20:54
Improved performance and stack usage when processing VALUES clauses with a very large number of rows. (check-in: 5706d470 user: drh tags: trunk)
19:16
Avoid a performance problem when very large "VALUES(..), (..), (..)" terms are used in queries. (Closed-Leaf check-in: f5306ad6 user: dan tags: recursive-selectdup)
15:16
Improved tests for the carray() table-valued function. (check-in: 83a099f1 user: drh tags: trunk)
14:44
Modify the sqlite3SelectDup() routine to avoid recursing on Select.pPrior. (check-in: a7674ead user: dan tags: recursive-selectdup)
00:07
Merge in the sqlite3_blob_reset() interface. (Closed-Leaf check-in: e9c94a1f user: drh tags: rtree-sqlite3_blob)
2017-02-02
23:57
Add the sqlite3_blob_reset() interface. Enhance the behavior of sqlite3_blob objects so that they can go active again after encountering an error by rerunning sqlite3_blob_reopen(). More work needed on the documentation. (check-in: 53b77838 user: drh tags: sqlite3_blob_reset)
20:32
Ensure that all cursors have their positions saved prior to rolling back a savepoint. (check-in: 8e03a8e9 user: drh tags: trunk)
19:24
Fix issues in the sha1 extension seen with MSVC. (check-in: 5a0da77c user: mistachkin tags: trunk)
16:30
Remove the unused pReadNode prepared statement from each RTREE object. (check-in: e51dc0ec user: drh tags: rtree-sqlite3_blob)
16:08
Fix a potential uninitialized (though harmless) variable in RTREE. (check-in: a1c74e09 user: drh tags: rtree-sqlite3_blob)
15:35
The sqlite3_blob_close() interface can cause recursive invocations of nodeBlobReset() in RTREE. Make sure that does not cause problems. (check-in: 88333441 user: drh tags: rtree-sqlite3_blob)
14:40
Change RTREE so that the sqlite3_blob object is closed whenever the cursor count drops to zero and there is not a pending write transaction. (check-in: 9bb4eafe user: drh tags: rtree-sqlite3_blob)
02:28
Use the sqlite3_blob interface for reading values from the %_node shadow table in RTREE. This is a work in progress. There are still some minor problems. (check-in: fc4917d7 user: drh tags: rtree-sqlite3_blob)
00:46
This is an experimental patch that ensures that all cursors have their position saved prior to starting a ROLLBACK TO. (Closed-Leaf check-in: 01d97e5b user: drh tags: savepoint-rollback)
2017-02-01
23:06
Fix harmless compiler warnings seen with MSVC. (check-in: 0c66cf0f user: mistachkin tags: trunk)
23:03
Backout the change in [02f6293f27] as it causes MSVC to complain. (check-in: aaae74d0 user: mistachkin tags: trunk)
22:59
Fix C99-style variable declaration issue seen with older versions of MSVC. (check-in: 54d28546 user: mistachkin tags: trunk)
22:43
Fix harmless compiler warnings seen with MSVC. (Closed-Leaf check-in: 997f765b user: mistachkin tags: msvcWarn)
22:32
Add an option to the MSVC makefile to enable treating warnings as errors. (check-in: 6a378c29 user: mistachkin tags: trunk)
17:08
Unwind the RTREE dimension loop inside of rtreeCallbackConstraint(). (check-in: 4854ea9c user: drh tags: trunk)
16:41
Completely unroll the dimension loop inside of cellArea() in RTREE. (check-in: 3c4c0126 user: drh tags: trunk)
15:49
Precompute the nDim2 value in the Rtree object and use that to make loops over coordinates faster. (check-in: f1f3c8cc user: drh tags: trunk)
15:24
Use compiler intrinsic functions (when available) for byteswapping in RTREE. (check-in: 82fcd54a user: drh tags: trunk)
15:19
Fix the build by making the OPFLAG_ISNOOP macro available unconditionally. (check-in: 510933cb user: drh tags: trunk)
14:19
Update the documentation comment in sqlite.h.in for sqlite3_preupdate_hook(). (check-in: 7f857020 user: dan tags: trunk)
14:10
Changes so that the pre-update hook and the sessions module work with WITHOUT ROWID tables. (check-in: 964bdc27 user: dan tags: trunk)
02:25
More RTREE performance optimizations related to decoding values. (check-in: c5395e74 user: drh tags: trunk)
01:34
Improved comments on the statGet() implementation in ANALYZE. No changes to code. (check-in: 9663eea2 user: drh tags: trunk)
2017-01-31
21:22
R-TREE optimization: unwrap the coordinate decode loop in rtreeCallbackConstraint(). (check-in: 0bf7b518 user: drh tags: trunk)
19:10
Very small performance improvements and size reductions in sqlite3VdbeExec() and blobSeekToRow(). (check-in: 85dddf2b user: drh tags: trunk)
19:02
Simplifications to blobSeekToRow(). (Closed-Leaf check-in: 495ea824 user: drh tags: micro-optimizations)
17:31
Add a speed-test program for the sessions module. (Closed-Leaf check-in: 25f1275f user: dan tags: preupdate-without-rowid)
16:49
Remove a C99-style comment. Fixes to the kvtest-speed.sh script. (check-in: 91eb6b62 user: drh tags: micro-optimizations)
16:43
Remove another unnecessary local variable initialization from sqlite3VdbeExec() (check-in: 2361b03b user: drh tags: micro-optimizations)
16:34
Remove an unnecessary initialization of the pOp variable in sqlite3VdbeExec(). (check-in: 02f6293f user: drh tags: micro-optimizations)
15:29
Add the "stat" command to kvtest.c. Also add the --variance option to the "init" command. Add the tool/kvtest-speed.sh script used for doing performance testing on key/value access patterns. (check-in: b63deed6 user: drh tags: trunk)
15:27
Fix a typo in a comment. (check-in: bd22bf9c user: drh tags: trunk)
14:08
Merge latest trunk with this branch. (check-in: 4a592abb user: dan tags: preupdate-without-rowid)
12:41
Further minor enhancement and size reduction in sqlite3ExprAssignVarNumber(). (check-in: eacfdcf2 user: drh tags: trunk)
03:52
Performance optimization in sqlite3ExprAssignVarNumber(). (check-in: 5987ca1f user: drh tags: trunk)
2017-01-30
19:44
Experimental change to invoke the preupdate hook when WITHOUT ROWID tables are written. (check-in: 856f8604 user: dan tags: preupdate-without-rowid)
11:38
Fix building with SQLITE_OMIT_FOREIGN_KEY defined. (check-in: e93d2c49 user: dan tags: trunk)
2017-01-28
20:46
In the amalgamation, allocate the parser engine object from stack rather than from heap, for improved performance. This only happens in the amalgamation, since otherwise the sqlite3RunParser() routine does not know the object size. (check-in: 4fe879d4 user: drh tags: trunk)
19:53
Fix a couple comment typos. No changes to code. (check-in: 2a2e7d86 user: mistachkin tags: trunk)
19:45
Avoid redundant table b-tree cursor seeks in UPDATE statements that use the two-pass strategy. (check-in: dc555b10 user: dan tags: trunk)
15:26
Updates to the sqlite3_blob documentation. No changes to code. (check-in: 426b440a user: drh tags: trunk)
13:40
In the speed-check.sh script, automatically invoke "fossil test-diff --tk" on the cachegrind output against trunk, if not generating a trunk run. (check-in: aa1ab371 user: drh tags: trunk)
06:50
Fix a typo in the docs for sqlite3_update_hook(). (check-in: 7c029655 user: dan tags: trunk)
2017-01-27
19:27
Add the sha1.c loadable extension that implements the sha1() and sha1_query() SQL functions. (check-in: 24e77c1c user: drh tags: trunk)
17:02
Fix a problem causing the pre-update hook to be invoked by DROP TABLE statements. (check-in: fbb6bf1b user: dan tags: trunk)
16:24
Merge all recent enhancements from trunk. (check-in: fe86ff54 user: drh tags: est_count_pragma)
13:14
Alternative ICU fix (compare to check-in [50e60cb4]) that avoids casting integers to pointers. (check-in: d9752c8f user: drh tags: trunk)
01:52
In the command-line shell, enhance the ".mode" command so that it restores the default column and row separators for modes "line", "list", "column", and "tcl". (check-in: 58f02e6e user: drh tags: trunk)
01:25
Another micro-optimization in accessPayload(). Slightly smaller and faster. (check-in: c012619b user: drh tags: trunk)
01:13
Performance optimization in accessPayload(). (check-in: ebb1fd98 user: drh tags: trunk)
00:31
Simplify the accessPayload() routine so that it always populates the overflow page cache. In the one case where populating the page cache can lead to problems, simply invalidate the cache as soon as accessPayload() returns. This simplification reduces code size and helps accessPayload() to run a little faster. This backs out the eOp==2 mode of accessPayload() added by check-in [da59198505]. (check-in: 68e7a8c6 user: drh tags: trunk)
2017-01-26
21:30
Remove an unreachable branch in the error handling logic for sqlite3BtreePayloadChecked(). (check-in: 293bf3ed user: drh tags: trunk)
18:00
Improvement to the OP_Permutation opcode to prevent it from using CPU cycles for initialization in prepared statements that do not use that opcode. (check-in: b4a98f65 user: drh tags: trunk)
17:26
Remove the obsolete lastRowid cache from the sqlite3VdbeExec() for a size reduction and performance improvement. (check-in: b4803184 user: drh tags: trunk)
17:11
Performance optimization in sqlite3VdbeCloseStatement(). (check-in: 1e96e5ec user: drh tags: trunk)
16:54
Performance optimization to sqlite3_blob_read(). (check-in: 7459f4b7 user: drh tags: trunk)
16:27
Minor simplification and performance optimization for Direct Overflow Read. (check-in: 3e96d6ef user: drh tags: trunk)
02:26
Make SQLITE_DIRECT_OVERFLOW_READ work for in WAL mode as long as the page being read is not in the the -wal file. (check-in: 9879be18 user: drh tags: trunk)