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100 ancestors of [a8b13002]

2018-07-07
20:55
Simplifications to the implementation of the sum() SQL function. check-in: a8b13002 user: drh tags: trunk
20:26
Fix another problem with reusing LSM cursors for range scans. check-in: ae3fc765 user: dan tags: trunk
20:23
Fix the JSON extension so that it can be compiled separately from the amalgamation. check-in: 4b8cfe7b user: drh tags: trunk
20:13
Fix an LSM problem caused by using the same cursor for equality and range scans. check-in: f05bead3 user: dan tags: trunk
19:47
Add ALWAYS() macros on results of sqlite3_aggregate_context() calls in xInverse() implements, since they can never fail. check-in: fdef2a92 user: drh tags: trunk
19:36
Add an assert() to help verify that OP_AggInverse is never called on an accumulator that has not previously been processed by OP_AggStep. check-in: 42138891 user: drh tags: trunk
17:38
Add missing VdbeCoverage() macro to window.c. check-in: 63f4d306 user: dan tags: trunk
17:30
Fix a problem with the handling of NULL values in the min() window function. check-in: b76f35b0 user: dan tags: trunk
2018-07-06
17:19
Try to improve the error messages for misformed frame specifications in window definitions. check-in: 927b95a0 user: drh tags: trunk
14:31
Also disallow non-constant expressions in "<expr> PRECEDING" or "<expr> FOLLOWING" clauses. check-in: a6dffecc user: dan tags: trunk
14:15
Ensure an error is returned if the user specifies an unsupported frame type. check-in: 0f3f8fcd user: dan tags: trunk
13:48
Prevent "UNBOUNDED FOLLOWING" from being used as the starting boundary of a window-frame. And "UNBOUNDED PRECEDING" from being used as the ending boundary. check-in: e51fdf66 user: dan tags: trunk
13:25
Remove some bad assert() statements from the implementations of window functions percent_rank() and cume_dist(). check-in: 443f0c28 user: dan tags: trunk
07:42
Return an error if DISTINCT is used with a window-function (e.g. "count(DISTINCT <expr>) OVER (...)"). check-in: d59bcc8e user: dan tags: trunk
2018-07-05
21:22
Use separate opcodes, OP_AggValue and OP_AggInverse, for the new callbacks associated with Window Functions, for improved readability of EXPLAIN output. check-in: fa653805 user: drh tags: trunk
20:33
Update the recipe for resetting a database using SQLITE_DBCONFIG_RESET_DATABASE. check-in: c43dd23f user: dan tags: trunk
20:05
Get the json_group_array() and json_group_object() SQL functions working as window functions. check-in: 916cdc83 user: drh tags: trunk
18:34
Return an error if a "RANGE" window-frame uses "<expr> PRECEDING" or "<expr> FOLLOWING". check-in: 786c87ba user: dan tags: trunk
18:19
Fix a problem in the xInverse method of window-function group_concat(1). check-in: 73391283 user: dan tags: trunk
17:35
Fix the .dump command in the command-line shell so that it does not show extraneous SELECT statements when ".echo on" is enabled. check-in: 11763cac user: drh tags: trunk
17:16
In wal mode, if a "BEGIN EXCLUSIVE" command (or any other command that upgrades from no transaction directly to a write transaction) hits an SQLITE_BUSY_SNAPSHOT error, change the error code to SQLITE_BUSY to indicate to the caller that the condition may be transient. check-in: e6108047 user: dan tags: trunk
17:03
Fix a typo inside an assert() statement introduced by the previous commit. Closed-Leaf check-in: e3357728 user: dan tags: exp-busy-snapshot-fix
15:46
In wal mode, if a "BEGIN EXCLUSIVE" command (or any other command that upgrades from no transaction directly to a write transaction) hits an SQLITE_BUSY_SNAPSHOT error, change the error code to SQLITE_BUSY to indicate to the caller that the condition may be transient. check-in: 221ff63e user: dan tags: exp-busy-snapshot-fix
2018-07-03
20:17
Test that a race condition can cause a "BEGIN EXCLUSIVE" to return SQLITE_BUSY_SNAPSHOT in wal mode. check-in: 5a12db75 user: dan tags: trunk
2018-07-02
17:45
Fix a problem in the xInverse callback for the built-in sum() window function. check-in: b6563647 user: dan tags: trunk
17:14
Fix a segfault caused by having identical window functions in the select-list and ORDER BY clause of a SELECT statement. check-in: 693b4350 user: dan tags: trunk
15:03
Fix a crash caused by a LIKE pattern that consists of a single escape character. Problem found by OSSFuzz. check-in: bb9bfc3a user: dan tags: trunk
12:07
Fix a segfault caused by invoking a regular aggregate as a window-function. And some problems with count(*) when used as a window-function. check-in: 4f3c8a82 user: dan tags: trunk
2018-07-01
16:05
Quick patch to the Lemon parser template to avoid an array overread reported by OSSFuzz. A proper fix involves enhancements to the table generators in Lemon to make the overread impossible. That fix will take longer to implement. The current check-in is a stop-gap. check-in: 3f6730be user: drh tags: trunk
2018-06-30
20:26
Avoid a warning in fts5.c due to not using generated routine sqlite3Fts5ParserFallback(). check-in: 65ff5144 user: dan tags: trunk
20:15
Merge implementation of SQL window functions from the exp-window-functions into trunk. check-in: 17198a12 user: dan tags: trunk
20:00
Fix a minor problem in the code for determining whether or not an SQL statement is SQLITE_TOOBIG. Closed-Leaf check-in: 763e6c9e user: dan tags: exp-window-functions
19:12
Merge all changes from the weak-fallback branch except those related to the weak-fallback feature itself. check-in: aad718fb user: dan tags: exp-window-functions
18:54
Have the tokenizer handle fallback for tokens "OVER" and "FILTER" in the same way as it does for "WINDOW". Leaf check-in: 12d819e1 user: dan tags: weak-fallback
2018-06-29
20:43
Further performance related tweaks for sqlite3RunParser(). check-in: 5eb47765 user: dan tags: weak-fallback
20:21
Further tweaks to sqlite3RunParser(). check-in: eef61ffa user: dan tags: weak-fallback
19:54
Improve on the previous checkin. Still a bit slow. check-in: c1fb41aa user: dan tags: weak-fallback
17:44
Instead of using a lemon %fallback directive, have the tokenizer try to figure out whether an instance of "WINDOW" should be TK_WINDOW or TK_ID. check-in: 022079cb user: dan tags: weak-fallback
2018-06-28
20:05
Modifications to parse.y to better support backwards compatibility for the "window" keyword. check-in: 7c4b879b user: dan tags: weak-fallback
03:38
Introduce the concept of "weak fallback" in the parser. A weak fallback only occurs if a syntax error would result otherwise. check-in: c41d7079 user: drh tags: weak-fallback
2018-06-27
20:24
Add missing VdbeCoverage() and VdbeCoverageNeverTaken() macros to window.c. check-in: 4383cb68 user: dan tags: exp-window-functions
19:48
Avoid redundant ORDER BY operations when rewriting SELECT statements that contain window functions. check-in: 336de43a user: dan tags: exp-window-functions
2018-06-26
20:19
Merge latest trunk changes. check-in: d9f814b4 user: dan tags: exp-window-functions
2018-06-25
20:34
Add documentation comment for sqlite3_create_window_function(). And further tests. check-in: 3f2705b9 user: dan tags: exp-window-functions
11:42
Fix another problem that could cause a crash when a window function was used in a view. check-in: e954145a user: dan tags: exp-window-functions
2018-06-23
19:29
Fix problems with using window-functions in correlated sub-queries. check-in: 3e23cfc8 user: dan tags: exp-window-functions
16:26
Fix a problem with using LIMIT in window-function queries. check-in: c1abd2dd user: dan tags: exp-window-functions
07:59
Fix a problem with using a window-function SELECT as a FROM clause sub-query in some circumstances. check-in: 11d73339 user: dan tags: exp-window-functions
2018-06-22
20:51
Omit all window-function related code when building with SQLITE_OMIT_WINDOWFUNC. check-in: 5f04b016 user: dan tags: exp-window-functions
17:57
Merge latest trunk changes. check-in: ebe65b23 user: dan tags: exp-window-functions
2018-06-21
23:53
Improved context for error_log message coming from sqlite3_prepare(). check-in: fea7ade6 user: drh tags: trunk
19:20
Fix a problem with handling single row partitions in the percent_rank() window function. check-in: b84fbf16 user: dan tags: exp-window-functions
2018-06-20
09:23
Add tests to improve coverage of code in window.c. Fix a problem with "SELECT row_number() OVER ()". check-in: f41b6b73 user: dan tags: exp-window-functions
2018-06-19
19:15
Merge latest trunk changes with this branch. check-in: 6ad0e64b user: dan tags: exp-window-functions
18:11
Fix a problem caused by a sub-query containing a window function in the FROM clause of a query that itself uses a window function. check-in: f4b1b6f8 user: dan tags: exp-window-functions
17:13
Fix a problem with using min() or max() as a window function. check-in: 801074ce user: dan tags: exp-window-functions
11:15
Minor change to the input grammar to make the parser tables slightly smaller. check-in: 320fa69e user: drh tags: trunk
2018-06-18
20:34
Fix problems with using window functions in CREATE VIEW statements. check-in: 943bccd2 user: dan tags: exp-window-functions
20:08
Add test case for the fix in the previous commit. check-in: 39434262 user: dan tags: trunk
19:09
Fix typo in the 'normalize' extension. check-in: 0c9163ea user: mistachkin tags: trunk
17:36
Ensure that all four callbacks are provided when registering a window function (otherwise SQLITE_MISUSE is returned). check-in: 5720dcd8 user: dan tags: exp-window-functions
16:55
Add new API function sqlite3_create_window_function(), for creating new aggregate window functions. check-in: da03fb43 user: dan tags: exp-window-functions
2018-06-15
20:46
Add extra OOM test. check-in: ac251f72 user: dan tags: exp-window-functions
19:01
Fix another problem in lead()/lag(). And some errors that could occur following OOM faults. check-in: fadd4dc1 user: dan tags: exp-window-functions
16:10
Fix a bug in the lead() and lag() window functions causing them to fail when used in queries featuring multiple window functions. check-in: 3839fb18 user: dan tags: exp-window-functions
2018-06-14
20:52
Fix a problem with handling of statements containing two or more different windows. check-in: 567e09ef user: dan tags: exp-window-functions
19:06
Fix problem with window functions min() and max() when used with a PARTITION clause and a frame starting point other than "UNBOUNDED PRECEDING". check-in: 43eb1e75 user: dan tags: exp-window-functions
14:30
Merge latest trunk changes into this branch. check-in: 5cf5f180 user: dan tags: exp-window-functions
14:27
Improve comments and code legibility in new file window.c. check-in: bb915854 user: dan tags: exp-window-functions
2018-06-13
20:29
Fix problems with "RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING" window frames. check-in: c34f31db user: dan tags: exp-window-functions
17:19
Output infinity as 1e999 in the ".dump" command of the command-line shell. check-in: ee431d55 user: drh tags: trunk
16:52
Pad out the sqlite3_value structure to be a multiple of 8 bytes. check-in: f76dc33b user: drh tags: trunk
16:08
Fix some test case numbers in expert1.test. check-in: b90c3c16 user: dan tags: trunk
11:41
Unless SQLITE_OMIT_AUTOINIT is defined, allow sqlite3_vfs_unregister() to be called before sqlite3_initialize(). check-in: ab6c1ae4 user: dan tags: trunk
11:11
Check that malloc() has not already failed when invoking the xUpdate() method of a virtual table implementation. This fixes an assert() failure in FTS5 that could occur following an OOM condition. check-in: e9a7e4d5 user: dan tags: trunk
02:20
Add the unused SQLITE_CANTOPEN_DIRTYWAL result code. This code was used in some historical versions on the apple-osx branch but was removed by check-in [27e20d699872b2b8]. Restore it so that old code that actually references that result code will still compile. check-in: 9f40383e user: drh tags: trunk
2018-06-12
20:53
Fix another issue to do with window-functions in aggregate queries. check-in: 6413e38a user: dan tags: exp-window-functions
19:35
Documentation update: clarify that sqlite3_errcode() and related interfaces do not themselves modify the error code. check-in: 858fc52b user: drh tags: trunk
19:22
Documentation updates: clarify the behavior of sqlite3_column and sqlite3_value interfaces following an OOM error. check-in: 428c581e user: drh tags: trunk
18:40
Fix some problems with using window-functions in aggregate queries. check-in: fe7081e0 user: dan tags: exp-window-functions
13:52
Improvements to SCopy correctness tracking when SQLITE_DEBUG is enabled. check-in: b2973f23 user: drh tags: trunk
13:16
Fix the "Synopsis" on the OP_BitNot opcode. check-in: acd78df6 user: drh tags: trunk
2018-06-11
21:33
Improvements to the --enable and --disable options for the amalgamation tarball. check-in: 02e337e0 user: drh tags: trunk
20:50
Clarify the relationship between a Window object and its associated Expr. check-in: 0cd55e98 user: dan tags: exp-window-functions
19:47
Fix various --enable and --disable options on the top-level configure script. check-in: 6fd7e8ce user: drh tags: trunk
18:16
Fix handling of window frames containing negative number of rows. e.g. "ROWS x PRECEDING AND y PRECEDING" where (x<y). check-in: b6d9c7ed user: dan tags: exp-window-functions
18:06
Fix the column cache invalidation logic in the code for ROWID uniqueness constraint checking in the INSERT command. This fixes ticket [c2432ef9089ee73bd]. check-in: 0b485a57 user: drh tags: trunk
17:35
Add the OP_SetTabCol and OP_VerifyTabCol opcodes, only when compiling with SQLITE_DEBUG, to do run-time verification of the column cache. check-in: b37614a3 user: drh tags: trunk
13:10
Strengthen the sqlite3VdbeMemAboutToChange() run-time verification mechanism to better detect missed calls to AboutToChange(). check-in: 793e9422 user: drh tags: trunk
11:19
Fix a typon in main.mk. check-in: e74f86f2 user: dan tags: exp-window-functions
01:30
Always initialize the WhereClause.hasOr field that was added by check-in [292724ffc4]. Error detected by OSSFuzz. check-in: 9faf4171 user: drh tags: trunk
2018-06-10
07:42
Update Makefile.msc to include window.c in the build. check-in: 16db7384 user: dan tags: exp-window-functions
2018-06-09
20:52
Fix a typo in the amalgamation autoconf file. check-in: de0857f3 user: drh tags: trunk
18:09
Merge recent trunk changes with this branch. check-in: c71f2359 user: dan tags: exp-window-functions
17:58
Update the amalgamation build script to include window.c. check-in: 21d2f4a6 user: dan tags: exp-window-functions
17:43
Add support for FILTER clause on aggregate window functions. check-in: ceaf798e user: dan tags: exp-window-functions
16:49
Slightly smaller and faster code by encapsulating wal-index hash table location information in a separate WalHashLoc object rather than passing around the various elements as separate variables. check-in: 538a365b user: drh tags: trunk
14:13
Improved comments an presentation for the recent IN operator decision improvement. check-in: 31e480f6 user: drh tags: trunk
02:49
Performance improvement to sqlite3WhereExprUsage(). check-in: fd093413 user: drh tags: trunk
01:12
Compute the bitmask of indexed columns for each index once when the Index objecct is constructed, instead of recomputing it every time it is needed. check-in: d735872e user: drh tags: trunk
00:09
Avoid invoking the whereLoopAddOr() routine in the query planner if there are no OR operators in the WHERE clause, thus speeding up query planning slightly. check-in: 292724ff user: drh tags: trunk