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100 ancestors of 522f1eacc20f1100
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2018-06-07
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| 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) | |
| 20:29 | 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) | |
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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) | |
| 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) | |
| 13:27 | Merge recent changes from trunk. (check-in: f8df2a8e user: drh tags: multikey-opt-idea) | |
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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) | |
| 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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| 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) | |
| 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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| 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) | |
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2018-05-26
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| 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) | |
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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) | |
| 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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| 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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2018-05-18
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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) | |
| 16:46 | Fix a prepare-statement leak. (check-in: 95fd296f user: drh tags: aux-data-in-rtree) | |
| 15:21 | Improved error messages. Limit the number of auxiliary columns to 100. (check-in: 059d20ab user: drh tags: aux-data-in-rtree) | |
| 14:24 | Improvements to integer/float comparisons on architectures that lack a "long double" type. (check-in: 5139ea62 user: drh tags: trunk) | |
| 14:19 | Remove incorrect NEVER() macro added by the previous check-in. (Closed-Leaf check-in: 3d662511 user: drh tags: int-float-compare) | |
| 13:39 | Improvements to the sqlite3IntFloatCompare() routine for systems that lack the long double type. (check-in: ea6a03a8 user: drh tags: int-float-compare) | |
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2018-05-17
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| 20:04 | In the CLI with the -A command, if the file does not previously exist and its name looks like a ZIP archive name, then create it as a ZIP archive. (check-in: 33dc8fad user: drh tags: trunk) | |
| 14:09 | Improved error and help messages for the ".archive" command and "-A" option to the CLI. If a memory leak in --list processing. (check-in: 02541ac6 user: drh tags: trunk) | |
| 13:29 | Fix memory errors associated with argv in the CLI when it is compiled on Windows. (check-in: 4474d69b user: drh tags: trunk) | |
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2018-05-16
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| 19:56 | Fix an issue with rtreecheck() and auxiliary data columns. (check-in: 46715136 user: drh tags: aux-data-in-rtree) | |
| 19:07 | Do not allow auxiliary columns in the rtree to interfere with query planning. Begin adding test cases. (check-in: 9abe023e user: drh tags: aux-data-in-rtree) | |
| 18:18 | Fix the OOM issue mentioned in the previous check-in. (check-in: c489d8e4 user: drh tags: aux-data-in-rtree) | |
| 17:57 | Initial implementation of the ability to have auxiliary columns in an rtree virtual table that store arbitrary content. It mostly works, but there are some minor issues in OOM corner cases. (check-in: 0c87fec9 user: drh tags: aux-data-in-rtree) | |
| 15:35 | Enhance the sqlite3_str_new() interface so that it always returns a valid and non-NULL pointer even in an OOM condition. (check-in: ed5b0968 user: drh tags: trunk) | |
| 12:19 | Correct output for the fullkey column of json_each() when the total JSON input is a simple value, not an array or object. (check-in: b45b1885 user: drh tags: trunk) | |
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2018-05-15
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| 09:09 | Fix a test case problem in wherelimit.test. (check-in: 3012df8b user: dan tags: trunk) | |
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2018-05-14
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| 22:46 | Make more aggressive use of automatic indexes when processing materalized views and subqueries. (check-in: 172f5bd2 user: drh tags: trunk) | |
| 15:26 | Convert the schema creation logic in the rtree extension to use the new sqlite3_str interface. (check-in: fd8b8c41 user: drh tags: trunk) | |
| 12:23 | Fix typo in the shell.c source file. (check-in: 389dc0a9 user: mistachkin tags: trunk) | |
| 00:41 | Export the deduceDatabaseType() function the shell.c source file. (check-in: d0f35739 user: drh tags: trunk) | |
| 00:23 | Add the --append option to the ".backup" command in the CLI. (check-in: 0dfdbdee user: drh tags: trunk) | |
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2018-05-12
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| 23:56 | In the CLI, allow comment lines that begin with '#', but only in a context where a dot-command is allowed. In other words, '#' at the beginning of a line in the middle of an SQL statement is just part of the SQL. (check-in: 4ee136d6 user: drh tags: trunk) | |
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2018-05-11
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| 19:11 | In the CLI, return non-zero if there are errors on the command-line. (check-in: 13e7300a user: drh tags: trunk) | |
| 15:10 | Fix a typo in the help message from the ".sha3sum" command in the CLI. (check-in: dba87a20 user: drh tags: trunk) | |
| 15:10 | Make sure the open_db() routine in the CLI does not invoke access() with a NULL filename. (check-in: 20a8c611 user: drh tags: trunk) | |
| 14:02 | Fix a typo in the help message from the ".sha3sum" command in the CLI. (check-in: e76f676c user: drh tags: geojson) | |
| 14:00 | Make sure the open_db() routine in the CLI does not invoke access() with a NULL filename. (check-in: 2b8fd3b4 user: drh tags: geojson) | |
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2018-05-09
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| 16:32 | Add a test case to check that the fts5 unicode64 tokenizer is dealing with codepoints greater than 65535 correctly. (check-in: 9f7a6ae8 user: dan tags: trunk) | |
| 15:17 | Add 14 new interfaces to the loadable extension mechanism. (check-in: 0e809cdc user: drh tags: trunk) | |
| 14:29 | Fix minor problems with the sqlite3_str interface. (check-in: 43ea8a68 user: drh tags: trunk) | |
| 13:46 | Make the internal dynamic string interface available to extensions using the new sqlite3_str object and its associated methods. This is mostly just a renaming of internal objects and methods to use external names, through there are a few small wrapper functions. (check-in: 87f261f0 user: drh tags: trunk) | |
| 10:11 | Fix a typo in a comment used for documentation. No code changes. (check-in: b866693e user: drh tags: trunk) | |
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2018-05-08
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| 23:17 | Correctly format the STAT1 and STAT4 content in the output from the ".fullschema" command in the CLI. Fix for ticket [e63a34a0045832dc850367552]. (check-in: 0c3f128f user: drh tags: trunk) | |
| 13:03 | Fix a harmless compiler warning in fuzzcheck. Add new OSSFuzz test cases to the test case library. (check-in: d2619746 user: drh tags: trunk) | |
| 12:49 | Fuzz test cases for UPSERT. (check-in: fd11fbd2 user: drh tags: trunk) | |
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2018-05-07
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| 18:41 | Activate the cell-overwrite optimization for index b-trees. (check-in: a68697d1 user: drh tags: trunk) | |
| 17:27 | Improved comments on the cell-overwrite optimization code. (check-in: a4fe966d user: drh tags: trunk) | |
| 11:48 | On an UPDATE, try to overwrite an existing btree cell with the modified content, if the old and new cell are the same size. Use memcmp() first to avoid dirtying pages that are unchanged. (check-in: 5887d8be user: drh tags: trunk) | |
| 11:37 | Fix harmless compiler warnings associated with the new EXPLAIN QUERY PLAN logic. (check-in: 374d8e26 user: drh tags: trunk) | |
| 11:29 | Fix harmless compiler warnings in the cell-overwrite logic. (Closed-Leaf check-in: 3e11dc31 user: drh tags: cell-overwrite-prototype) | |
| 02:50 | Backout change [05fee1a21ea398f1e4d6f1cf3] because it does not take into account the LD_LIBRARY_PATH environment variable used by dl_open(). (check-in: b348d119 user: drh tags: trunk) | |
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2018-05-05
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| 16:50 | In an ORDER BY LIMIT, make sure the ORDER BY expression evaluator does not try to reuse values from the result set if the result set has not yet be computed. This fixes a bug in the recent deferred-row loading optimization, check-in [c381f0ea57002a264fd958b28e]. OSSFuzz discovered the problem. (check-in: 5d61e75f user: drh tags: trunk) | |