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76 check-ins using file src/sqlite.h.in version 63b07f76
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2018-06-14
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| 14:27 | Improve comments and code legibility in new file window.c. check-in: bb915854 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: c34f31db 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: 6413e38a user: dan tags: exp-window-functions | |
| 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 | |
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2018-06-11
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| 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 | |
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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: 16db7384 user: dan tags: exp-window-functions | |
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2018-06-09
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| 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 | |
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2018-06-08
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| 23:23 | When the query planner has the opportunity to use an IN operater constraint on a term of an index other than the left-most term, use the estimated number of elements on the right-hand side of the IN operator to determine if makes sense to use the IN operator with index lookups, or to just do a scan over the range of the table identified by the index terms to the left. Only do this if sqlite_stat1 measurements are available as otherwise the performance estimates will not be accurate enough to discern the best plan. Bias the decision slightly in favor of using index lookups on each element of the IN operator. check-in: 2cbbabdf user: drh tags: trunk | |
| 21:21 | Only choose to scan an IN operator rather than use an index if we have real STAT1 data to suggest it is advantageous. Closed-Leaf check-in: 30e87466 user: drh tags: in-scan-vs-index | |
| 20:58 | Add support for the WINDOW clause. check-in: 19c983b5 user: dan tags: exp-window-functions | |
| 19:54 | Merge the btreeNext() assertion bug fix from trunk. check-in: 11bd66e0 user: drh tags: in-scan-vs-index | |
| 19:13 | Fix an assert() that can be false for a corrupt database and a strange query that uses a recursive SQL function to delete content from a corrupt database file while it is being queried. check-in: 99057383 user: drh tags: trunk | |
| 18:22 | Consider doing a partial table scan to fulfill an IN operator rather than using an index. Try to pick the plan with the lowest cost. check-in: 1fa40a78 user: drh tags: in-scan-vs-index | |
| 16:11 | Do not flatten sub-queries that contain window functions. check-in: 236cb75b user: dan tags: exp-window-functions | |
| 11:45 | Fixes to allow group_concat() to be used as a window function. check-in: 89bbc9ba 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: 25102203 user: dan tags: exp-window-functions | |
| 20:08 | Add window functions lag() and lead(). check-in: ef342070 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: 09fffbdf 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: 4b0b4e14 user: drh tags: multikey-opt-idea | |
| 17:45 | Add support for window function first_value(). check-in: 060b2640 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: 439c8162 user: drh tags: multikey-opt-idea | |
| 16:07 | Test cases. check-in: 085e8637 user: drh tags: multikey-opt-idea | |
| 15:54 | Fix problems with the nth_value() function. check-in: 63002b9a user: dan tags: exp-window-functions | |
| 15:28 | Merge the ".stat/.eqp" CLI fix from trunk. check-in: a91cad33 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: bb87c054 user: drh tags: trunk | |
| 14:59 | Add the WHERE_IN_EARLYOUT flag and use it to clarify the logic of this optimization. check-in: 522f1eac user: drh tags: multikey-opt-idea | |
| 14:32 | Merge recent trunk enhancements. check-in: e9d7bf4f 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: 71f97f0f user: drh tags: trunk | |
| 20:55 | More space and performance enhancements to sqlite3VdbeRecordCompare(). check-in: 83a60ff0 user: drh tags: trunk | |
| 20:51 | Add implementation of nth_value() window function. check-in: eb1fb420 user: dan tags: exp-window-functions | |
| 20:29 | Small performance optimization in sqlite3VdbeRecordCompareWithSkip() for the common case where the comparison is equal. check-in: 1e616e25 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: 4b853f02 user: drh tags: trunk | |
| 18:50 | Fix the sqlite3BeginTrans() calls within the snapshot extension. check-in: 1fef7ad2 user: drh tags: trunk | |
| 17:45 | Another minor optimization to OP_Transaction. check-in: d80077ae 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: a10662aa 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: 27291f2d user: drh tags: trunk | |
| 00:36 | Attempt to optimize the resolveExprStep() routine by mapping Expr opcodes into a subset of opcodes that resolveExprStep() cares about and only calling the routine when those opcodes are encountered. Is slightly faster, but it seems like the very slight performance bump is not worth the added complexity. Saved on a dead-end branch for historical reference. Closed-Leaf check-in: bad4d7a0 user: drh tags: dead-end | |
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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: 7598236c 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: e15e1006 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: 6bf251af 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: dce2dfbe user: dan tags: exp-agg-opt | |
| 16:16 | Add implementation of last_value() window function. check-in: 2493ce1a 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: 87a9fc50 user: drh tags: multikey-opt-idea | |
| 13:54 | Merge trunk changes. check-in: 047295c5 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: 8a0b730d user: drh tags: trunk | |
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2018-06-04
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| 19:24 | Version 3.24.0 check-in: c7ee0833 user: drh tags: trunk, release, version-3.24.0 | |
| 18:55 | Add implementation of window function ntile(). check-in: 3f093f60 user: dan tags: exp-window-functions | |
| 13:27 | Merge recent changes from trunk. check-in: f8df2a8e user: drh tags: multikey-opt-idea | |
| 08:28 | Merge latest trunk changes into this branch. check-in: 83d6416a user: dan tags: exp-window-functions | |
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2018-06-02
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| 19:14 | Avoid using a misaligned pointer. check-in: 1ecb3aa1 user: drh tags: trunk | |
| 19:01 | Fix the usage of posix_fallocate() so that it correctly responds to EINVAL returns. check-in: ce2c3e7a 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: 3d5eae1c 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: 1b807b51 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: ab3a5539 user: drh tags: einval-from-fallocate | |
| 12:05 | Fix the CSV extension so that it works with single-column CSV files. check-in: e336cf00 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: d0c3beef user: drh tags: trunk | |
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2018-06-01
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| 13:30 | Fix a bug in the SQLITE_ENABLE_SORTER_REFERENCES code causing an out-of-bounds array reference. check-in: 8cadaf58 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: 66c24513 user: drh tags: trunk | |