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100 check-ins occurring around 8d02c7a6a09f7520.
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2018-06-07
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| 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) | |
| 17:12 | Merge the 3.24.0 changes plus a few subsequent enhancements. (check-in: be7004a9 user: drh tags: begin-concurrent-pnu) | |
| 17:03 | Merge changes from trunk, including all the 3.24.0 changes plus some later enhancements. (check-in: d7299bfe user: drh tags: begin-concurrent) | |
| 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) | |
| 14:10 | Merge changes from trunk. (check-in: 95fbac39 user: drh tags: apple-osx) | |
| 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) | |
| 08:22 | Add support for window function cume_dist(). Improve tests for percent_rank(). (check-in: 76543f7d 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: 91c1cb7a user: dan tags: exp-window-functions) | |
| 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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| 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: b5b18f66 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: 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) | |
| 19:00 | Fix a harmless typo in a comment used to generate documentation. (check-in: 5a2a88cb 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: c16125a8 user: dan tags: exp-window-functions) | |
| 14:17 | Add the Makefile.fallback makefile to the amalgamation tarball. (check-in: ce3d0456 user: drh tags: trunk) | |
| 07:36 | Do not use the codec on the resetdb.test script. (check-in: fe55cea0 user: drh tags: trunk) | |
| 07:24 | Fix a typo in an error message in the CLI. (check-in: 80883980 user: drh tags: trunk) | |
| 01:14 | Fix the parser so that it builds with -DSQLITE_OMIT_CTE. (check-in: 86ee267e user: drh tags: trunk) | |
| 00:59 | Fix a harmless compiler warning. (check-in: 8d02c7a6 user: drh tags: trunk) | |
| 00:54 | Demonstration code on a possible technique for optimizing the use of IN operator on columns to the right of multicolumn indexes. If the OP_Noop generated where were really a new opcode that checked to see if there existed any entries in the index with a matching prefix, it might prevent unnecessary iterations of the IN operator. (check-in: 92f0fe15 user: drh tags: multikey-opt-idea) | |
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2018-05-29
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| 19:12 | Increase the number of database handles opened by test script oserror.test to provoke an "out of file-descriptors" error to 20000 (from 2000). (check-in: 3b00f734 user: dan tags: trunk) | |
| 17:17 | Fix a problem in the geopoly json parser associated with spaces before a coordinate number. (check-in: 9d8d3af8 user: drh tags: rtree-geopoly) | |
| 16:37 | Fix autoinc.test and resetdb.test so that they work with all permutations. (check-in: 89f56d6b user: dan tags: trunk) | |
| 15:18 | Add a comment to justify a goto statement. No code changes. (check-in: f141d806 user: drh tags: trunk) | |
| 14:29 | More minor changes to test scripts. (check-in: ce9b756f user: dan tags: trunk) | |
| 14:06 | Fix some test script issues caused by recent EXPLAIN QUERY PLAN enhancements. (check-in: f808e228 user: dan tags: trunk) | |
| 13:25 | Do not run test file "resetdb.test" as part of permutation "inmemory_journal". (check-in: 4921e5ba user: dan tags: trunk) | |
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2018-05-28
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| 23:59 | The geopoly virtual table seems to be working. But only thinly tested so far. (check-in: 4288f1ad user: drh tags: rtree-geopoly) | |
| 18:30 | Further window frame tests and fixes. (check-in: e74c6e91 user: dan tags: exp-window-functions) | |
| 18:29 | Do not require a statement journal in cases where REPLACE conflict handling is used to insert a single row, so long as the REPLACE operation cannot fire any triggers or foreign key actions. (check-in: 469a62ca user: dan tags: trunk) | |
| 18:25 | When compiling with SQLITE_DEBUG, add run-time checks to ensure that no statement aborts unless either there have been no writes or else there is a statement journal. (check-in: ce99c772 user: drh tags: trunk) | |
| 17:43 | Fix the build so that it works with -DSQLITE_TEST_REALLOC_STRESS (Closed-Leaf check-in: 90ba2b2e user: drh tags: stmt-journal-testing) | |
| 17:31 | When compiling with SQLITE_DEBUG, add run-time checks to ensure that no statement aborts unless either there have been no writes or else there is a statement journal. (check-in: 5a4542db user: drh tags: stmt-journal-testing) | |
| 13:23 | Untested incremental check-in. Add the geopoly_xform() function. Complete basic logic for the geopoly virtual table. (check-in: ed06cc32 user: drh tags: rtree-geopoly) | |
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2018-05-26
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| 21:17 | More fixes for different window frame types. (check-in: 2c85668a user: dan tags: exp-window-functions) | |
| 20:04 | Merge the ability to plan virtual table queries using overloaded functions. (check-in: 2c2a202c user: drh tags: rtree-geopoly) | |
| 18:03 | Experimental change that allows overloaded functions to be analyzed by the xBestIndex method and used by the xFilter method of a virtual table. (Leaf check-in: a353b1d7 user: drh tags: vtab-func-constraint) | |
| 16:00 | Store application-defined function names as lower-case to avoid the need for case conversions before calling xFindFunction on virtual tables. Avoid using lookaside to store the destructors for application defined functions, as lookaside should be reserved for transient allocations. (check-in: 777189ce user: drh tags: trunk) | |
| 13:55 | Add a single sentence of documentation about the virtual table scan flags. No changes to code. (check-in: 27b4fa5d user: drh tags: trunk) | |
| 12:21 | Minor correction. (check-in: f20d9a99 user: drh tags: rtree-geopoly) | |
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2018-05-25
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| 22:39 | Untested incremental check-in. Basic infrastructure for geopoly in place, except for the MATCH operator. (check-in: b2745191 user: drh tags: rtree-geopoly) | |
| 20:53 | Incremental check-in: Progress toward implementing the geopoly vtab. (check-in: 9b7d6f98 user: drh tags: rtree-geopoly) | |
| 20:30 | Fix "RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING" window frame processing. (check-in: b4e9c686 user: dan tags: exp-window-functions) | |
| 19:22 | Forward port the geopoly extension functions into the r-tree extension, with the idea of creating a new spatial index based on simply polygons. (check-in: 0593aac8 user: drh tags: rtree-geopoly) | |
| 14:39 | This is an untested proof-of-concept for enhancements to RTree that attempt to use sqlite3_value_nochange() to reduce the amount of work associated with UPDATE operations in cases where either the coordinates or the auxiliary data is unchanged. (Leaf check-in: 6f7cfeff user: drh tags: rtree-update-optimization) | |
| 09:36 | Merge latest trunk changes into this branch. (check-in: 62325198 user: dan tags: exp-window-functions) | |
| 09:29 | Fixes for "ROWS BETWEEN <expr> FOLLOWING AND <expr> FOLLOWING" and "ROWS BETWEEN <expr> FOLLOWING AND UNBOUNDED FOLLOWING" (check-in: 5ac44872 user: dan tags: exp-window-functions) | |
| 03:46 | Add SQLITE_LOCKED_VTAB and SQLITE_CORRUPT_SEQUENCE to sqlite3ErrName(). Also, use SQLITE_CORRUPT_BKPT in one more place. (Leaf check-in: eac8888d user: mistachkin tags: errCodes) | |
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2018-05-24
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| 23:51 | When doing a one-pass UPDATE or DELETE on virtual tables, close the cursor prior to running VUpdate. This allows one-pass to work on virtual tables that do not allow concurrent reads and writes. Enhance rtree to take advantage of this new capability. (check-in: b816023c user: drh tags: trunk) | |
| 22:42 | New test case for reading and writing the same rtree concurrently. (check-in: 3ba08e53 user: drh tags: trunk) | |
| 22:31 | Do not allow RTree writes when a read cursor is active on the same virtual table, as the writes might rebalance and disrupt the read cursors. Return the new SQLITE_LOCKED_VTAB error code if this happens. (check-in: d4ce6661 user: drh tags: trunk) | |
| 21:10 | Allow "<expr> PRECEDING" to be used to specify the end of a window frame. (check-in: 7b709a98 user: dan tags: exp-window-functions) | |
| 17:49 | Support other frame types that use "<expr> PRECEDING" or "<expr> FOLLOWING" as start or end conditions. (check-in: ec7b648c user: dan tags: exp-window-functions) | |
| 17:38 | In the OOM testing logic, add the sqlite3FirstFault() routine as a place to set a breakpoint the first time any simulated OOM fault occurs for a single test case. (check-in: b4d80bd2 user: drh tags: trunk) | |
| 17:25 | Fix a typo in a comment used to generate VDBE opcode documentation. No code changes. (check-in: 36cdfbf2 user: drh tags: trunk) | |
| 16:18 | Addition cases for rtree preformance testing in speedtest1.c. Add the --nodiff option to the speed-check.sh script. (check-in: 95f2d62c user: drh tags: trunk) | |
| 13:59 | Updates to the sqlite3_vtab_nochange() documentation. No changes to code. (check-in: 5bd99abc user: drh tags: trunk) | |
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2018-05-23
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| 20:55 | Add support for "ROWS BETWEEN <expr> PRECEDING AND <expr> FOLLOWING" window frames. (check-in: 3a203660 user: dan tags: exp-window-functions) | |
| 17:53 | Remove a branch that is no longer used due to the fix to the sqlite_sequence schema problem, ticket [d8dc2b3a58cd5dc2918a1d4acbba4676a23ada4c] (check-in: 06674269 user: drh tags: trunk) | |
| 16:50 | Verify that the sqlite_sequence table exists and is in approximately the correct format prior to using it to process an autoincrement table. Fix for ticket [d8dc2b3a58cd5dc2918a1d4a]. (check-in: e199e859 user: drh tags: trunk) | |
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2018-05-22
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| 20:36 | Merge latest trunk changes into this branch. (check-in: cdb68d2c user: dan tags: exp-window-functions) | |
| 20:35 | Add comments to window.c describing how other window frames will be implemented. (check-in: 16168146 user: dan tags: exp-window-functions) | |
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2018-05-21
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| 19:45 | Begin adding support for more esoteric window frames. (check-in: bc4b81d6 user: dan tags: exp-window-functions) | |
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2018-05-19
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| 14:15 | Fix minor problems on this branch. (check-in: 19c2e4b2 user: dan tags: exp-window-functions) | |
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2018-05-18
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| 17:58 | Add support for auxiliary columns to the rtree extension. (check-in: c6071ac9 user: drh tags: trunk) | |
| 17:17 | Merge enhancements from trunk, especially the CLI fixes. (Closed-Leaf check-in: a350040a user: drh tags: aux-data-in-rtree) | |
| 17:11 | In the CLI, detect and report errors on sqlite3_close(). Clear global variables prior to exit to so that valgrind can better detect resource leaks. (check-in: e3b2e0a0 user: drh tags: trunk) | |
| 16:53 | Avoid unnecessary sqlite3_finalize() operations. (check-in: 16f71032 user: drh tags: aux-data-in-rtree) | |