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50 descendants and 50 ancestors of 236cb75bd1f0d5eb
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2018-07-02
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| 15:03 | Fix a crash caused by a LIKE pattern that consists of a single escape character. Problem found by OSSFuzz. (check-in: bb9bfc3a12 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: 4f3c8a82fd user: dan tags: trunk) | |
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2018-07-01
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| 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: 3f6730be4c user: drh tags: trunk) | |
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2018-06-30
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| 20:26 | Avoid a warning in fts5.c due to not using generated routine sqlite3Fts5ParserFallback(). (check-in: 65ff5144a5 user: dan tags: trunk) | |
| 20:15 | Merge implementation of SQL window functions from the exp-window-functions into trunk. (check-in: 17198a1206 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: 763e6c9e2b 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: aad718fb1a 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: 12d819e1c1 user: dan tags: weak-fallback) | |
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2018-06-29
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| 20:43 | Further performance related tweaks for sqlite3RunParser(). (check-in: 5eb4776598 user: dan tags: weak-fallback) | |
| 20:21 | Further tweaks to sqlite3RunParser(). (check-in: eef61ffab7 user: dan tags: weak-fallback) | |
| 19:54 | Improve on the previous checkin. Still a bit slow. (check-in: c1fb41aa7b 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: 022079cb0d user: dan tags: weak-fallback) | |
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2018-06-28
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| 20:05 | Modifications to parse.y to better support backwards compatibility for the "window" keyword. (check-in: 7c4b879bdb 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: c41d7079fb user: drh tags: weak-fallback) | |
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2018-06-27
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| 20:24 | Add missing VdbeCoverage() and VdbeCoverageNeverTaken() macros to window.c. (check-in: 4383cb68a1 user: dan tags: exp-window-functions) | |
| 19:48 | Avoid redundant ORDER BY operations when rewriting SELECT statements that contain window functions. (check-in: 336de43a47 user: dan tags: exp-window-functions) | |
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2018-06-26
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| 20:19 | Merge latest trunk changes. (check-in: d9f814b443 user: dan tags: exp-window-functions) | |
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2018-06-25
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| 20:34 | Add documentation comment for sqlite3_create_window_function(). And further tests. (check-in: 3f2705b933 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: e954145a3a user: dan tags: exp-window-functions) | |
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2018-06-23
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| 19:29 | Fix problems with using window-functions in correlated sub-queries. (check-in: 3e23cfc813 user: dan tags: exp-window-functions) | |
| 16:26 | Fix a problem with using LIMIT in window-function queries. (check-in: c1abd2dda4 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: 11d733396f user: dan tags: exp-window-functions) | |
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2018-06-22
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| 20:51 | Omit all window-function related code when building with SQLITE_OMIT_WINDOWFUNC. (check-in: 5f04b01646 user: dan tags: exp-window-functions) | |
| 17:57 | Merge latest trunk changes. (check-in: ebe65b2386 user: dan tags: exp-window-functions) | |
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2018-06-21
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| 19:20 | Fix a problem with handling single row partitions in the percent_rank() window function. (check-in: b84fbf16ea user: dan tags: exp-window-functions) | |
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2018-06-20
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| 09:23 | Add tests to improve coverage of code in window.c. Fix a problem with "SELECT row_number() OVER ()". (check-in: f41b6b7317 user: dan tags: exp-window-functions) | |
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2018-06-19
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| 19:15 | Merge latest trunk changes with this branch. (check-in: 6ad0e64b46 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: f4b1b6f85b user: dan tags: exp-window-functions) | |
| 17:13 | Fix a problem with using min() or max() as a window function. (check-in: 801074ce63 user: dan tags: exp-window-functions) | |
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2018-06-18
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| 20:34 | Fix problems with using window functions in CREATE VIEW statements. (check-in: 943bccd2a6 user: dan tags: exp-window-functions) | |
| 17:36 | Ensure that all four callbacks are provided when registering a window function (otherwise SQLITE_MISUSE is returned). (check-in: 5720dcd8b1 user: dan tags: exp-window-functions) | |
| 16:55 | Add new API function sqlite3_create_window_function(), for creating new aggregate window functions. (check-in: da03fb4318 user: dan tags: exp-window-functions) | |
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2018-06-15
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| 20:46 | Add extra OOM test. (check-in: ac251f7260 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: fadd4dc119 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: 3839fb18f9 user: dan tags: exp-window-functions) | |
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2018-06-14
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| 20:52 | Fix a problem with handling of statements containing two or more different windows. (check-in: 567e09ef2a 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: 43eb1e75a4 user: dan tags: exp-window-functions) | |
| 14:30 | Merge latest trunk changes into this branch. (check-in: 5cf5f1808a user: dan tags: exp-window-functions) | |
| 14:27 | Improve comments and code legibility in new file window.c. (check-in: bb915854d4 user: dan tags: exp-window-functions) | |
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2018-06-13
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| 20:29 | Fix problems with "RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING" window frames. (check-in: c34f31dbd7 user: dan tags: exp-window-functions) | |
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2018-06-12
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| 20:53 | Fix another issue to do with window-functions in aggregate queries. (check-in: 6413e38a17 user: dan tags: exp-window-functions) | |
| 18:40 | Fix some problems with using window-functions in aggregate queries. (check-in: fe7081e095 user: dan tags: exp-window-functions) | |
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2018-06-11
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| 20:50 | Clarify the relationship between a Window object and its associated Expr. (check-in: 0cd55e98a4 user: dan tags: exp-window-functions) | |
| 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: b6d9c7eda8 user: dan tags: exp-window-functions) | |
| 11:19 | Fix a typon in main.mk. (check-in: e74f86f271 user: dan tags: exp-window-functions) | |
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2018-06-10
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| 07:42 | Update Makefile.msc to include window.c in the build. (check-in: 16db73842a user: dan tags: exp-window-functions) | |
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2018-06-09
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| 18:09 | Merge recent trunk changes with this branch. (check-in: c71f23590c user: dan tags: exp-window-functions) | |
| 17:58 | Update the amalgamation build script to include window.c. (check-in: 21d2f4a62e user: dan tags: exp-window-functions) | |
| 17:43 | Add support for FILTER clause on aggregate window functions. (check-in: ceaf798ea0 user: dan tags: exp-window-functions) | |
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2018-06-08
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| 20:58 | Add support for the WINDOW clause. (check-in: 19c983b511 user: dan tags: exp-window-functions) | |
| 16:11 | Do not flatten sub-queries that contain window functions. (check-in: 236cb75bd1 user: dan tags: exp-window-functions) | |
| 11:45 | Fixes to allow group_concat() to be used as a window function. (check-in: 89bbc9ba8f user: dan tags: exp-window-functions) | |
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2018-06-07
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| 20:35 | Merge latest trunk changes with this branch. (check-in: 2510220342 user: dan tags: exp-window-functions) | |
| 20:08 | Add window functions lag() and lead(). (check-in: ef34207073 user: dan tags: exp-window-functions) | |
| 18:13 | The IN-early-out optimization: When doing a look-up on a multi-column index and an IN operator is used on a column other than the left-most column, then if no rows match against the first IN value, check to make sure there exist rows that match the columns to the right before continuing with the next IN value. (check-in: 09fffbdf9f user: drh tags: trunk) | |
| 18:01 | Fix the assert()s in the byte-code engine that prove that cursors are unidirectional. (Closed-Leaf check-in: 4b0b4e1403 user: drh tags: multikey-opt-idea) | |
| 17:45 | Add support for window function first_value(). (check-in: 060b264028 user: dan tags: exp-window-functions) | |
| 17:32 | Remove the NextIfOpen and PrevIfOpen opcodes which are no longer needed when the IN-early-out optimization is working. (check-in: 439c816227 user: drh tags: multikey-opt-idea) | |
| 16:07 | Test cases. (check-in: 085e863713 user: drh tags: multikey-opt-idea) | |
| 15:54 | Fix problems with the nth_value() function. (check-in: 63002b9a09 user: dan tags: exp-window-functions) | |
| 15:28 | Merge the ".stat/.eqp" CLI fix from trunk. (check-in: a91cad3381 user: drh tags: multikey-opt-idea) | |
| 15:23 | Avoid using a prepared statement for ".stats on" after it has been closed by the ".eqp full" logic. Fix for ticket [7be932dfa60a8a6b3b26bcf76]. (check-in: bb87c054b1 user: drh tags: trunk) | |
| 14:59 | Add the WHERE_IN_EARLYOUT flag and use it to clarify the logic of this optimization. (check-in: 522f1eacc2 user: drh tags: multikey-opt-idea) | |
| 14:32 | Merge recent trunk enhancements. (check-in: e9d7bf4f7b user: drh tags: multikey-opt-idea) | |
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2018-06-06
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| 23:31 | Change a comma into a logically equivalent but semantically clearer semicolon. (check-in: 71f97f0f82 user: drh tags: trunk) | |
| 20:55 | More space and performance enhancements to sqlite3VdbeRecordCompare(). (check-in: 83a60ff056 user: drh tags: trunk) | |
| 20:51 | Add implementation of nth_value() window function. (check-in: eb1fb420ac user: dan tags: exp-window-functions) | |
| 20:29 | Small performance optimization in sqlite3VdbeRecordCompareWithSkip() for the common case where the comparison is equal. (check-in: 1e616e256a user: drh tags: trunk) | |
| 19:48 | Rearrange the order of some checks in the integrity_check pragma for a very slight performance gain. (check-in: 4b853f0205 user: drh tags: trunk) | |
| 18:50 | Fix the sqlite3BeginTrans() calls within the snapshot extension. (check-in: 1fef7ad25b user: drh tags: trunk) | |
| 17:45 | Another minor optimization to OP_Transaction. (check-in: d80077aee3 user: drh tags: trunk) | |
| 16:28 | Change sqlite3BtreeBeginTrans() to return the BTREE_SCHEMA_COOKIE, for a small speed improvement when starting new transactions. (check-in: a10662aa91 user: drh tags: trunk) | |
| 01:18 | Fix the ".archive" command in the CLI (and the corresponding -A command-line option) so that it silently ignores filenames that contain "../" in their names. This prevents the "Zip Slip" attack. (check-in: 27291f2d7f user: drh tags: trunk) | |
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2018-06-05
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| 23:51 | Update the version number to 3.25.0 for the next development cycle. (check-in: 7598236c35 user: drh tags: trunk) | |
| 23:21 | Avoid unnecessary loads of columns in an aggregate query that are not within an aggregate function and that are not part of the GROUP BY clause. (check-in: e15e100660 user: drh tags: trunk) | |
| 20:45 | Add the OP_IfNoHope and OP_SeekHit opcodes used to reduce the number of unnecessary sqlite3BtreeMovetoUnpacked() calls when checking for an early exit on IN-operator loops. Futher optimizations are likely possible here. (check-in: 6bf251af43 user: drh tags: multikey-opt-idea) | |
| 20:04 | Calculate non-aggregate expressions in the SELECT list of an aggregate query that does not use min() or max() once per group, instead of once per row visited. (Closed-Leaf check-in: dce2dfbe15 user: dan tags: exp-agg-opt) | |
| 16:16 | Add implementation of last_value() window function. (check-in: 2493ce1a40 user: dan tags: exp-window-functions) | |
| 15:16 | Use an OP_NotFound opcode to cancel futile IN operators early. The current implementation is suboptimal because it always runs teh OP_NotFound. This still needs to be enhanced to only do the OP_NotFound if no results have been seen on the current loop. (check-in: 87a9fc504f user: drh tags: multikey-opt-idea) | |
| 13:54 | Merge trunk changes. (check-in: 047295c588 user: drh tags: multikey-opt-idea) | |
| 13:43 | Update and correct the documentation on the OP_OpenRead, OP_OpenWrite, and OP_ReopenIdx opcodes. No code changes other than the addition of an assert(). (check-in: 8a0b730d0e user: drh tags: trunk) | |
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2018-06-04
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| 19:24 | Version 3.24.0 (check-in: c7ee083322 user: drh tags: trunk, release, version-3.24.0) | |
| 18:55 | Add implementation of window function ntile(). (check-in: 3f093f608c user: dan tags: exp-window-functions) | |
| 13:27 | Merge recent changes from trunk. (check-in: f8df2a8e28 user: drh tags: multikey-opt-idea) | |
| 08:28 | Merge latest trunk changes into this branch. (check-in: 83d6416a86 user: dan tags: exp-window-functions) | |
| 08:22 | Add support for window function cume_dist(). Improve tests for percent_rank(). (check-in: 76543f7dd3 user: dan tags: exp-window-functions) | |
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2018-06-02
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| 21:04 | Add support for window functions row_number(), rank(), dense_rank() and percent_rank(). (check-in: 91c1cb7a21 user: dan tags: exp-window-functions) | |
| 19:14 | Avoid using a misaligned pointer. (check-in: 1ecb3aa13d user: drh tags: trunk) | |
| 19:01 | Fix the usage of posix_fallocate() so that it correctly responds to EINVAL returns. (check-in: ce2c3e7a87 user: drh tags: trunk) | |
| 17:00 | Update a test case in malloc5.test to take into account that malloc() sometimes returns slightly more space than requested. (check-in: 3d5eae1c26 user: dan tags: trunk) | |
| 16:32 | Work around a sanitizer warning about a pointer being only 4-byte aligned instead of 8-byte aligned. (Closed-Leaf check-in: 1b807b51cd user: drh tags: align8-fix) | |
| 14:37 | Proposed fix for the use of posix_fallocate() so that it handles EINVAL returns correctly. (Closed-Leaf check-in: ab3a5539db user: drh tags: einval-from-fallocate) | |
| 12:05 | Fix the CSV extension so that it works with single-column CSV files. (check-in: e336cf0048 user: drh tags: trunk) | |
| 11:31 | Ensure that sqlite3AuthRead() is only call for TK_COLUMN and TK_TRIGGER expression nodes. This fixes a harmless assert() identified by OSSFuzz. Move the assert() into a position where it is tested even if the authorizer is disabled. (check-in: d0c3beef7c user: drh tags: trunk) | |
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2018-06-01
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| 21:00 | Allow an entire partition to be cached in a temp table for all types of window frames. This is required by nth_value() and others. (check-in: b5b18f6613 user: dan tags: exp-window-functions) | |
| 13:30 | Fix a bug in the SQLITE_ENABLE_SORTER_REFERENCES code causing an out-of-bounds array reference. (check-in: 8cadaf587d user: dan tags: trunk) | |
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2018-05-31
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| 19:14 | More documentation typo fixes. No code changes. (check-in: 66c24513c2 user: drh tags: trunk) | |
| 19:00 | Fix a harmless typo in a comment used to generate documentation. (check-in: 5a2a88cb01 user: drh tags: trunk) | |
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2018-05-30
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| 20:44 | Allow min() and max() to be used as window functions. (check-in: c16125a884 user: dan tags: exp-window-functions) | |
| 14:17 | Add the Makefile.fallback makefile to the amalgamation tarball. (check-in: ce3d045633 user: drh tags: trunk) | |
| 07:36 | Do not use the codec on the resetdb.test script. (check-in: fe55cea0c8 user: drh tags: trunk) | |