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50 check-ins occurring around 4c5e6c200a.
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2021-03-31
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| 13:41 | Ensure that negative numbers may not be used in frame offset clauses even if they are initially text value. e.g. (RANGE BETWEEN '-1' PRECEDING ...). (check-in: 2d179f58bf user: drh tags: branch-3.35) | |
| 13:31 | Defer deletion of expressions that are optimized out by the AND optimizer in the sqlite3ExprAnd() routine until the corresponding Parse object is deleted. This avoids a dangling pointer in AggInfo if sqlite3ExprAnd() is invoked by the push-down optimization. The dangling pointer appears to be harmless in release builds, only showing up in debug builds. Problem found by dbsqlfuzz. (check-in: c36b43589a user: drh tags: trunk) | |
| 11:31 | Ensure that negative numbers may not be used in frame offset clauses even if they are initially text value. e.g. (RANGE BETWEEN '-1' PRECEDING ...). (check-in: 8b681b274d user: dan tags: trunk) | |
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2021-03-30
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| 01:57 | Raise an error if a term of the form "TABLE.*" appears in the RETURNING clause, as SQLite does not (yet) know how to handle that. Ticket [132994c8b1063bfb]. (check-in: 257e16f7b3 user: drh tags: branch-3.35) | |
| 01:52 | Raise an error if a term of the form "TABLE.*" appears in the RETURNING clause, as SQLite does not (yet) know how to handle that. Ticket [132994c8b1063bfb]. (check-in: 3039bcaff9 user: drh tags: trunk) | |
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2021-03-29
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| 21:59 | Increase the patch number to 3.35.4. (check-in: 4375cec281 user: drh tags: branch-3.35) | |
| 21:16 | Do not do the EXISTS-to-IN transformation if the sub-select has LIMIT clause. Ticket [de7db14784a08053] (check-in: 3bf8a35716 user: dan tags: branch-3.35) | |
| 20:28 | Do not do the EXISTS-to-IN transformation if the sub-select has LIMIT clause. (check-in: d07e246f9b user: dan tags: trunk) | |
| 20:04 | Add "#ifdef SQLITE_DEBUG" blocks around test variables sqlite3_fts5_may_be_corrupt and sqlite3_fts3_may_be_corrupt. (check-in: 004559544e user: dan tags: trunk) | |
| 20:01 | Simplify the comparison opcodes in the bytecode engine, for a performance improvement. (check-in: f2af5868be user: drh tags: trunk) | |
| 19:47 | Fix VDBE coverage macros. (Closed-Leaf check-in: ebe100de55 user: drh tags: compare-opcode-opt) | |
| 18:53 | Omit the SQLITE_STOREP2 and SQLITE_KEEPNULL options from the comparison opcodes, allowing them to run faster. This required refactoring the vector comparison logic, which in turn required changing OP_ElseNotEq into OP_ElseEq. (check-in: 380b46054b user: drh tags: compare-opcode-opt) | |
| 14:40 | Add the OP_ZeroOrNull opcode and use it to compute boolean values for scalar comparisons, rather than the SQLITE_STOREP2 parameter to the comparison opcode. (check-in: 93781b6f10 user: drh tags: compare-opcode-opt) | |
| 13:47 | The comparison opcodes (ex: OP_Eq) now set the iCompare flag so that the result of comparison can be used by subsequent OP_Jump or OP_ElseNotEq opcodes. (check-in: bd00df8f07 user: drh tags: compare-opcode-opt) | |
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2021-03-28
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| 23:37 | Alternative implementation of the comparison opcode speed-up of check-in [4a8805d9a66dc888] that should pass muster with UBSAN. (check-in: afb18f6454 user: drh tags: trunk) | |
| 20:44 | Document the "%token" directive for Lemon. This directive has been in place for a while, but was previously undocumented. (check-in: 36624d3740 user: drh tags: trunk) | |
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2021-03-27
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| 20:45 | Performance improvement in the comparison opcodes by rewriting an array lookup using pointer arithmetic. This makes gcc 5.4.0 builds with -Os both faster and smaller. Though I suspect that in newer compilers with better optimizers in will probably make no difference at all in the generated machine code. Later: Even though the new code is perfectly valid, and generates correct machine code that is both smaller and faster, UBSAN complains about it in OSSFuzz. So we will take it out. So here was have an example of OSSFuzz coercing a widely used application to become bigger and slower. (Leaf check-in: 4a8805d9a6 user: drh tags: gcc-opt) | |
| 16:21 | For the sqlite3_bind_text16 TCL binding used for testing, ensure that there are at least 3 terminating zeros, so that there will always be a \u0000 character even if the original byte sequence is an odd number of bytes. (check-in: c23d092f37 user: drh tags: trunk) | |
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2021-03-26
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| 23:59 | In the sqlite3_bind_text and sqlite3_bind_text16 TCL commands of the test suite, ensure that the string is zero-terminated if the size argument is negative. (check-in: f472fd6443 user: drh tags: trunk) | |
| 14:04 | Merge up all the 3.35.3 changes into the begin-concurrent-pnu-wal2 branch. (check-in: 4d425e641d user: drh tags: begin-concurrent-pnu-wal2) | |
| 13:58 | Merge the 3.35.3 enhancements into the wal2 branch. (check-in: a1b8d9d213 user: drh tags: wal2) | |
| 13:47 | Merge patch 3.35.3 into the begin-concurrent-report branch. (check-in: 4ba9fc34c5 user: drh tags: begin-concurrent-report) | |
| 13:38 | Merge version 3.35.3 changes into the begin-concurrent-pnu branch. (check-in: 7e4c48afcc user: drh tags: begin-concurrent-pnu) | |
| 13:31 | Merge from 3.35.3 into the begin-concurrent branch. (check-in: 988da36c86 user: drh tags: begin-concurrent) | |
| 13:16 | Merge in changes for 3.35.3 (check-in: 76f19f4bcf user: drh tags: reuse-schema) | |
| 12:12 | Version 3.35.3 (check-in: 4c5e6c200a user: drh tags: release, branch-3.35, version-3.35.3) | |
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2021-03-24
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| 23:30 | Remove old testcases() macros. Also remove surplus end-of-line whitespace. (check-in: 54b41915ed user: drh tags: trunk) | |
| 19:57 | Add a comment to snapshotrevert.c warning of the undefined effects reverting to an old snapshot may have on newer readers. (Leaf check-in: 00af3bd254 user: dan tags: snapshot-revert) | |
| 19:54 | Add experimental extension "snapshotrevert". (check-in: 2d5ee3bad1 user: dan tags: snapshot-revert) | |
| 19:44 | Comment improvements to on the distinct-agg optimization. Show a line in the EQP output when using an ephemeral table to implement DISTINCT on an aggregate. (check-in: 037ca79e60 user: drh tags: trunk) | |
| 17:28 | Improvements to distinct aggregates such that they can sometimes avoid using an ephermeral table to test for duplicates if the column that is distinct is part of an index. (check-in: ef4ac0ddd2 user: drh tags: trunk) | |
| 17:04 | Fix a harmless compiler warning. (check-in: 26b005a95e user: drh tags: trunk) | |
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2021-03-23
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| 22:15 | Fix a problem with renaming a column when there is a quoted string immediately following the column name somewhere in the schema. (check-in: 4719fae626 user: dan tags: trunk) | |
| 21:02 | Add an ALWAYS() on a branch that is always taken. (check-in: 0646d2260c user: drh tags: trunk) | |
| 19:39 | Test result adjustments in test/misc7.test due to the EQP format change. (check-in: d3ade8c7fe user: drh tags: trunk) | |
| 16:34 | When doing schema updates, try to convert (incorrect) double-quoted strings into (SQL-standard) single-quoted strings. (check-in: 0770470488 user: drh tags: trunk) | |
| 15:39 | Tweaks to test/scanstatus.test to account for the new EQP format. (check-in: 2eb28afd01 user: drh tags: trunk) | |
| 15:07 | Changes to test/analyzeG.test to conform to the new EXPLAIN QUERY PLAN syntax. (check-in: d8afde1bf1 user: drh tags: trunk) | |
| 14:33 | Fix a test case in bigmmap.test so that it works with the new EXPLAIN QUERY PLAN output format. (check-in: 9ac064fe2a user: drh tags: trunk) | |
| 14:27 | Add the ExprList.nAlloc column and use it to make the sqlite3ExprListAppend() routine much faster. (check-in: 1d3c4662c2 user: drh tags: trunk) | |
| 01:06 | Enhance the EXPLAIN QUERY PLAN output to use symbolic names to describe subqueries, where possible, instead of cryptic subquery index numbers. And in other ways, make the EQP output cleaner and easier to read. Little code is changed, but many of the test results had to be tweaked to align with the new output format. (check-in: f8e28308fd user: drh tags: trunk) | |
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2021-03-22
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| 18:53 | Merge recent fixes from trunk. (Closed-Leaf check-in: 4a343698b4 user: drh tags: eqp-improvements) | |
| 16:50 | Increase the version number to 3.36.0 to begin the next development cycle. (check-in: 5cee689d64 user: drh tags: trunk) | |
| 16:47 | This branch for any further patches on 3.35. We anticipate 3.35.3 in a few days. Hopefully there will never be a need for 3.35.4. (check-in: 8de4cb984a user: drh tags: branch-3.35) | |
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2021-03-21
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| 18:23 | Fix an assert() that in preupdate-hook logic (not normally built) that can be false when running VACUUM on a corrupt database file under PRAGMA writable_schema=ON. (check-in: 6bb2134027 user: drh tags: trunk, same-as-3.35.3) | |
| 17:52 | Add a better comment and an assert() on the code inside sqlite3CreateIndex() that REPLACE indexes come at the end of the index list. forum post ceb51d83f7 (check-in: 71e4da136b user: drh tags: trunk) | |
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2021-03-20
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| 23:15 | Fix the "box" output mode in the shell when statement returns zero-column rows (for example from "PRAGMA incremental_vacuum"). (check-in: 34439fe3ae user: drh tags: trunk) | |
| 15:46 | Use the canonical name, not the AS name, when showing the MATERIALIZE or CO-ROUTINE lines for a CTE. (check-in: 1b83e232c4 user: drh tags: eqp-improvements) | |
| 15:11 | Revise tests cases to align with the new EXPLAIN QUERY PLAN output. (check-in: 50fbd53260 user: drh tags: eqp-improvements) | |
| 01:00 | Fix a faulty assert() in the OP_SkipScan opcode. dbsqlfuzz a15a9b2ca82e812ad52f62c86cc93dca0dc72f01. Test cases in TH3. (check-in: 1805b9aaf1 user: drh tags: trunk) | |