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100 ancestors of [3fde6276]

2019-04-01
19:42
Improvements to the sqlite3ExprImpliesNonNullRow() theorem prover. (check-in: 3fde6276 user: drh tags: trunk)
18:43
Add a test case to cover a missed VDBE branch generated by window.c. (check-in: b36813d6 user: dan tags: trunk)
17:24
If the library is built with SQLITE_VDBE_COVERAGE defined, have the Tcl tests generate a vdbe coverage report in file testdir/vdbe_coverage.txt. (check-in: f0ed7146 user: dan tags: trunk)
16:23
Frame range comparisons can never be NULL because the values will have been checked for NULL prior to the test. (check-in: fa37cf9a user: drh tags: trunk)
15:55
Mark rowid-comparison opcodes as never-null for VDBE coverage tracking purposes. (check-in: a69bb4f2 user: drh tags: trunk)
14:30
Improved VDBE branch coverage in the run-time frame-spec error detection logic of window functions. (check-in: f56d305a user: drh tags: trunk)
14:01
Improved comments on the VDBE branch coverage testing logic. Fix the VDBE branch coverage measurement on the OP_MustBeInt opcode. (check-in: 8681750e user: drh tags: trunk)
13:06
Fix a defect in the VDBE branch coverage testing logic. (check-in: 1fcf3307 user: drh tags: trunk)
03:07
Fix harmless compiler warnings seen with MSVC. (check-in: 6cf8b18e user: mistachkin tags: trunk)
2019-03-31
21:09
Early detection of too many columns in an index avoid a possible 16-bit signed integer overflow. (check-in: 8af0caeb user: drh tags: trunk)
18:17
Add some missing VdbeCoverage() macros. (check-in: d03b6113 user: drh tags: trunk)
2019-03-30
20:43
Improvements to VdbeCoverage macros. (check-in: 10ee9e33 user: drh tags: trunk)
20:37
Fix issues with the previous check-in and add more VDBE branch coverage testing macros. (Closed-Leaf check-in: b5f72f10 user: drh tags: oops)
20:10
Enhanced VdbeCoverage() macros in the new windows function code. Later: This check-in causes an assertion fault. (check-in: f24066f8 user: drh tags: oops)
19:17
Add a call to sqlite3FaultSim(410) inside of btreeRestoreCursorPosition() to simplify testing of error scenarios. (check-in: bb643bac user: drh tags: trunk)
18:39
The defragmentPage() routine detects corruption in the first-free-slot fields at offset 1 in the header and throws an error, rather than asserting. (check-in: fb125bd3 user: drh tags: trunk)
17:30
Add the blobio.c extension module implementing readblob() and writeblob(). Experimental. (check-in: e3fde56d user: drh tags: trunk)
17:07
Add an extra IO-error test to windowfault.test. (check-in: 5b8c44cd user: dan tags: trunk)
2019-03-29
15:21
Remove the unused P5 flag from the OP_Rewind opcode. (check-in: c2edbf3b user: drh tags: trunk)
13:17
Fix a fairly obscure problem causing the planner to sometimes choose sub-optimal plans for a query with a single virtual table in the FROM clause, and at least one IN(...) constraint in the WHERE clause. (check-in: f5752517 user: dan tags: trunk)
11:48
Fix typos in the comments of the sessions extension, one of which affects the generated documentation. No code changes. (check-in: 040d5d51 user: drh tags: trunk)
01:15
Recover a some of the performance lost by window function alias fix two check-ins back. (check-in: 965cbcea user: drh tags: trunk)
2019-03-28
20:50
Add new test cases to test/fuzzdata8.db (check-in: f908cd40 user: drh tags: trunk)
16:15
Prevent aliases of window functions expressions from being used as arguments to aggregate or other window functions. (check-in: 1e16d3e8 user: dan tags: trunk)
13:53
Show the pointer address for Window objects in the TreeView display. (check-in: 1ae70ad2 user: drh tags: trunk)
13:35
More improvements to TreeView output for Window objects: (1) Show when the frame-spec is implied rather than explicit. (2) Move the FILTER clause out from within the OVER clause, making it a sibling of the OVER clause, to match syntax. (check-in: d6a07433 user: drh tags: trunk)
13:03
Improved TreeView display of Window objects. Change the Window.eType field to Window.eFrmType to avoid confusion with other "eType" values. (check-in: ec2f207d user: drh tags: trunk)
04:03
If the string formatter in sqlite3NestedParse() fails due to an over-length string, make sure this error is recorded by the parser so that it knows to fail. (check-in: 85e53ff1 user: drh tags: trunk)
01:00
Improvements to the README.md file. No code changes. (check-in: bbdbaf84 user: drh tags: trunk)
2019-03-27
14:59
Support building the Tcl bindings DLL using MSVC. (check-in: b2011c13 user: mistachkin tags: trunk)
14:58
Fix harmless compiler warnings seen with MSVC. (check-in: 5be64ea8 user: mistachkin tags: trunk)
2019-03-26
16:47
Fix a problem with window frames that use "BETWEEN <start> AND 0 PRECEDING". (check-in: 7927b6b0 user: dan tags: trunk)
16:21
Fix harmless compiler warnings. (check-in: a063f7c4 user: drh tags: trunk)
13:08
Add support for new window functions related features - GROUPS frames, RANGE frames with logical start and end points, the EXCLUDE clause and window chaining. (check-in: c6da3911 user: dan tags: trunk)
2019-03-25
22:05
Fix an obsolete comment in the CLI. No code changes. (check-in: fade103c user: drh tags: trunk)
21:56
In the CLI, code the "sqlite_parameters" name directly rather than using a macro, for clarity of presentation for users who are reading the code for the purpose of seeing how the CLI implements parameter binding. (check-in: e775ef00 user: drh tags: trunk)
21:55
Remove a test from the index build logic which is no longer needed and is in fact unreachable. (check-in: 9b20ee10 user: drh tags: trunk)
21:35
Change the name of the parameter table in the CLI to "sqlite_parameters". Doing so involves adding SQLITE_DBCONFIG_WRITABLE_SCHEMA and allowing the creation of tables whose names begin with "sqlite_" and that are indexed while writable_schema is on. (check-in: 24ef3844 user: drh tags: trunk)
19:50
Earlier detection of corruption while added to the freelist. (check-in: 8c80b004 user: drh tags: trunk)
18:44
Fix a faulty assert() statement in balance_nonroot() - the assert() should use get2byteNotZero() instead of get2byte() for the corner case where the number cells is zero on a 65536-byte page. (check-in: bcbe7d96 user: drh tags: trunk)
15:09
Improvements to the help text in the CLI. (check-in: 919fec91 user: drh tags: trunk)
15:06
Fix the writefile() SQL function implemented by ext/misc/fileio.c such that any directories created have standard umask permissions, not permissions of the file that is to be written. (check-in: f11c8959 user: drh tags: trunk)
14:24
For the ".archive --update" command in the CLI, only update files if their mtime or mode has changed. To force an update, use the new --insert instead. (check-in: 191a023a user: drh tags: trunk)
2019-03-23
00:38
Support Tcl libraries with a suffix. (Closed-Leaf check-in: 8d015399 user: mistachkin tags: msvcTcl)
2019-03-22
22:34
Further enhancements and fixes. (check-in: c9f1972e user: mistachkin tags: msvcTcl)
16:52
Attempt to detect when the MSVC linker requires the /MACHINE argument. (check-in: 3e355846 user: mistachkin tags: msvcTcl)
13:56
Fix a problem with a window function in a correlated sub-query where at least one reference to the outer SELECT appears in a FROM clause sub-select. (Closed-Leaf check-in: 9aca86f9 user: dan tags: window-functions)
13:53
We learn that readdir_r() is deprecated in favor of plain old readdir(), which is now suppose to be threadsafe using thread-local storage. So remove the use of readdir_r() from the test code. (SQLite itself never calls readdir() or readdir_r()). (check-in: 7a0a26ed user: drh tags: trunk)
11:38
Add the --limit N option to dbfuzz2. Set the default callback limit to 250K. (check-in: b99f8512 user: drh tags: trunk)
01:26
Sync up the autoconf makefile for MSVC. (check-in: ecbae90a user: mistachkin tags: msvcTcl)
01:25
Support building the Tcl bindings DLL using MSVC. (check-in: 908c4c89 user: mistachkin tags: msvcTcl)
2019-03-21
21:18
Add an extra test for database corruption to defragmentPage(). (check-in: 80e951fc user: dan tags: trunk)
13:51
Remove assert() statements based on the counter-factual proposition that 0 is not a valid cursor number. (check-in: c7b33618 user: dan tags: window-functions)
2019-03-20
18:22
In the CLI, give better error messages if something goes wrong with the ".dbinfo" command. (check-in: 3649a77b user: drh tags: trunk)
16:58
Fix a potential dangling pointer deference in an ALTER TABLE run on a schema that contains constructs of the form "PRIMARY KEY(column COLLATE collation)". (check-in: b9e2393c user: dan tags: trunk)
12:08
Fix harmless compiler warnings from MSVC. (check-in: f0f02d46 user: drh tags: trunk)
11:16
Enhance the rtreenode() function of rtree (used for testing) so that it uses the newer sqlite3_str object for better performance and improved error reporting. Test cases added to TH3. (check-in: 90acdbfc user: drh tags: trunk)
05:45
Fix various harmless compiler warnings seen with MSVC. (Closed-Leaf check-in: 1c0fe5b5 user: mistachkin tags: noWarnings)
2019-03-19
20:42
Enhance the VACUUM INTO command so that it works on read-only databases. (check-in: 55be6d0a user: drh tags: trunk)
20:13
Fix a compiler warning in FTS5. (check-in: d5acf3af user: drh tags: trunk)
19:39
Add further tests to window8.test. (check-in: ec7e224f user: dan tags: window-functions)
19:19
Fix a problem with EXCLUDE clauses on window frames with no ORDER BY. (check-in: e0255063 user: dan tags: window-functions)
17:45
Add tests to ensure that the window functions implementation is not generating code for unnecessary sorts. (check-in: e195948a user: dan tags: window-functions)
16:49
Add missing VdbeCoverage() macros to new code in window.c. (check-in: 4f9b93e6 user: dan tags: window-functions)
15:36
When computing the amount of scratch memory needed during a rebalance operation, assume the worst case for the number of cells per page, rather than relying on the BtPage.nCell value, which might be incorrect for a corrupt database. (check-in: a420ebd0 user: drh tags: trunk)
11:56
Revert the OP_MustBeInt opcode implementation on this branch so that it again matches trunk. The extra functionality is no longer required. (check-in: c02f77b1 user: dan tags: window-functions)
11:35
Tweak the tool/cg_anno.tcl script so that it can run on systems without /usr/bin/tclsh. (check-in: a026189a user: dan tags: trunk)
11:17
Update this branch with latest trunk changes. (check-in: 98cc2659 user: dan tags: window-functions)
09:57
Add a LICENSE.md, containing the text of the blessing. (check-in: cbb7e602 user: drh tags: trunk)
06:40
Ensure that all the new window-function keywords can still be used as SQL identifiers. (check-in: a6d61dfd user: dan tags: window-functions)
2019-03-18
21:19
Add further tests for new window function functionality. (check-in: 1fbddf01 user: dan tags: window-functions)
18:55
Always evaluate window functions using the alternative path usually only used by EXCLUDE frames if the SQLITE_QueryFlattener test flag is set. (check-in: 2879a691 user: dan tags: window-functions)
16:51
Fixes for RANGE windows and NULL values. (check-in: 723c84be user: dan tags: window-functions)
15:49
Fix a buffer overread that could occur when running fts5 prefix queries inside a transaction. (check-in: b3fa58dd user: dan tags: trunk)
15:23
Fix an fts5 problem with interleaving reads and writes in a single transaction. (check-in: 45c73deb user: dan tags: trunk)
10:30
Fix a typo in a comment. No changes to code. (check-in: c2f50aa4 user: drh tags: trunk)
2019-03-17
23:59
New hyperlink on the README.md file. (check-in: cc5ab967 user: drh tags: trunk)
23:44
Update the README.md file at the top level to talk about how to deal with version names and how to verify the code in Git mirrors. (check-in: e8c87a0a user: drh tags: trunk)
2019-03-16
20:29
Fix problems with RANGE windows and string, blob and NULL values. (check-in: cebe09e1 user: dan tags: window-functions)
10:15
In order to identify the first row of each partition, check if the rowid in the ephemeral table is 1 instead of using a dedicated flag register. (check-in: f2d5f7a2 user: dan tags: window-functions)
2019-03-15
20:46
Implement the EXCLUDE clause for window frames. (check-in: 9b43c3ee user: dan tags: window-functions)
19:08
Back out the change to support Fuchsia, since it turns out fuchsia does not like dot-file locks. (check-in: 1d801a3b user: drh tags: trunk)
18:57
Remove a debugging printf() left in test/sessionfuzz.c. (check-in: 73c4abc9 user: dan tags: trunk)
16:17
Ensure that ALTER TABLE commands open statement transactions. Fix for [596d059a]. (check-in: 0f2129f5 user: dan tags: trunk)
2019-03-14
20:53
Parse EXCLUDE clauses in window frames. They do not yet work. (check-in: d03c7533 user: dan tags: window-functions)
16:36
Add things to this branch that will be required to support the EXCLUDE clause. (check-in: 7d66cd20 user: dan tags: window-functions)
00:01
Technical improvements to the documentation for sqlite3_bind_blob() and sqlite3_bind_text(). No changes to code. (check-in: fb60150a user: drh tags: trunk)
2019-03-13
23:51
Improvements to the sqlite3_db_filename() API documentation. No code changes. (check-in: 711f5ec4 user: drh tags: trunk)
17:31
Merge latest trunk changes into this branch. (check-in: 0b904517 user: dan tags: window-functions)
17:20
Avoid allocating excessive registers for the PARTITION BY expressions when processing window functions. (check-in: 180be266 user: dan tags: window-functions)
15:29
Remove rows from the ephemeral table used by window functions once they are no longer required. (check-in: 6ad55319 user: dan tags: window-functions)
13:19
New test cases added to test/fuzzdata8.db (check-in: 049e9926 user: drh tags: trunk)
11:40
When deserializing a database (sqlite3_deserialize()), do not attempt to parse the schema before the data is loaded. (check-in: 4e1b005e user: dan tags: trunk)
10:29
Detect zero-length free slots on btree pages and report that as corruption. (check-in: c4f0568f user: drh tags: trunk)
08:28
Minor optimization in sqlite3WindowCodeStep(). (check-in: b1322ffb user: dan tags: window-functions)
2019-03-12
18:28
Allow real values to be used in PRECEDING and FOLLOWING expressions for RANGE window frames. (check-in: 25ff7091 user: dan tags: window-functions)
15:21
Expand on header comment for sqlite3WindowCodeStep(). Further simplify the implementation of the same. (check-in: 5129bcc9 user: dan tags: window-functions)
09:49
Fix a crash that could occur if the RHS of an IN expression is a correlated sub-query that refers to the outer query from within a window frame definition only. (check-in: 0524aaaf user: dan tags: trunk)
2019-03-11
19:50
Remove "cache mode" from the window frame code generator. Handle the same cases by editing the window frame specification itself. (check-in: 08126353 user: dan tags: window-functions)
18:17
Simplify the windows frame code some. Add a comment explaining some of the VM code generated by sqlite3WindowCodeStep(). (check-in: 6bd1a079 user: dan tags: window-functions)
11:12
Fix problems with "RANGE ... ORDER BY <expr> DESC" window frames. (check-in: e7bced73 user: dan tags: window-functions)