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348 check-ins using file src/func.c version 479f6929

2021-05-11
11:33
Merge changes from branch-3.35. Specifically, fixes for a running RBU with a cksumvfs VFS. (Leaf check-in: ca62c36b user: dan tags: reuse-schema-3.35)
11:25
Fixes for cksmvfs and rbu so that they work together. (Leaf check-in: ce8b589e user: dan tags: branch-3.35)
2021-04-19
19:07
Merge in the 3.35.5 patches. (check-in: 35d1c9a5 user: drh tags: reuse-schema-3.35)
18:32
Version 3.35.5 (check-in: 1b256d97 user: drh tags: release, branch-3.35, version-3.35.5)
12:05
Update the version number to 3.35.5. (check-in: d917b70a user: drh tags: branch-3.35)
2021-04-18
15:45
Create new branch named "auth-vac" (Leaf check-in: 5a7410ac user: larrybr tags: auth-vac)
06:03
Ensure that all records are updated by setting the OPFLAG_SAVEPOSITION flag when updating records as part of ALTER TABLE DROP COLUMN. Fix for [c88f3036a2]. (check-in: 11c368f2 user: dan tags: branch-3.35)
05:52
Modify the drop column code to handle WITHOUT ROWID tables for which a single column appears more than once in the primary key. (check-in: cfa8912a user: dan tags: branch-3.35)
2021-04-16
10:25
Dial back assumptions on compile option defaults to reflect actual conditionals. (check-in: cb312772 user: larrybr tags: compile_options)
01:03
Do not invoke sqlite3ExprAffinity() if there is a possibility that the Expr is incomplete due to a prior OOM. dbsqlfuzz b8a824706914488bd236da51118eb9174ceb870f (check-in: e8a1515b user: drh tags: trunk)
2021-04-15
23:43
Merge from (forked) trunk. Handle compile options that differ from default by being 0. (check-in: 6eb83f83 user: larrybr tags: compile_options)
19:09
Fix a bad interaction between constant propagation and transitive term handling causing patterns like "WHERE unlikely(t1.x=t1.y) AND t1.y=?" to return non-matching rows. See forum post c38462ab5e. (check-in: 2363a14c user: dan tags: trunk)
13:26
Add extra test case for OOM handling in where.c. (check-in: 7163de3d user: dan tags: trunk)
12:56
Make sure the WhereInfo.pExprMods list is properly cleared when existing sqlite3WhereBegin() early due to an OOM fault. dbsqlfuzz 1247a51318047aba42e7f6991dfa62577cb7a151. (check-in: 0e19af72 user: drh tags: trunk)
00:26
Bring pragma compile_options up to date. And make mkctimec.tcl help do so. (check-in: 63ea3e29 user: larrybr tags: compile_options)
2021-04-14
15:25
Prevent an assert() from failing if sqlite3_blob_reopen() is called on a blob-handle that has already hit an SQLITE_CORRUPT error. (check-in: b5dc7aba user: dan tags: trunk)
12:11
Fix a potential crash when using json_group_array() as a window function. (check-in: 3c266690 user: dan tags: trunk)
11:20
Fix an assert() in the code generator for expressions so that it is valid even after an OOM. (check-in: 427e83eb user: drh tags: trunk)
2021-04-13
18:39
Fix a problem with handling expressions like "(col IS NULL AND <expr1>) OR col == NULL" in WHERE clauses. Reported at https://sqlite.org/forum/forumpost/1c4f2fdcc4. (check-in: e8c7bd34 user: drh tags: branch-3.35)
17:45
Fix an undefined signed integer overflow in fts5. (check-in: e6f0adb0 user: dan tags: trunk)
13:48
Do not leave a WITHOUT ROWID table without a primary key index structure due to an OOM error. This prevents downstream troubles in the case of PRAGMA writable_schema=ON. dbsqlfuzz 69fb32cc82d59b4d790881566e3f6c727e616122 (check-in: 608b6644 user: drh tags: trunk)
13:20
The SQLITE_NoSchemaError flag should not apply to OOM errors while parsing the schema. (check-in: 9cc484ad user: drh tags: trunk)
13:01
Earlier detection empty_result_callbacks in sqlite3InitCallbac() to avoid problems with corrupt schemas an writable_schema=ON. dbsqlfuzz ca4ca43bdb22eab9859de4979aec615af851e111. (check-in: fb305fe0 user: drh tags: trunk)
12:28
In the rtreedepth() function, detect OOM when converting a zeroblob() on input. dbsqlfuzz ed23eda7cc3a8a054f85ea19d55c59ba2ca72744. (check-in: 69f843c8 user: drh tags: trunk)
01:12
Fix an error in the inversion function for json_group_array(). dbsqlfuzz 68a4b0f668b7bc27235e3f1c5cff8a2d94cfa17e. (check-in: e718a62e user: drh tags: trunk)
2021-04-12
23:18
Fix a faulty assert() inside sqlite3ExprDup(). (check-in: 59812e7e user: drh tags: trunk)
22:39
Fix an assert() in OP_ParseSchema so that it works even after an OOM. (check-in: 79b88353 user: drh tags: trunk)
18:32
Avoid taking the address of a NULL pointer following an OOM in FTS5. Doing so is harmless in actual practice, but it technically UB so we want to avoid it. (check-in: 1cfcd9dc user: drh tags: trunk)
17:34
Add an assert() to show that the SF_Resolved flag does not get set if errors are being suppressed. (check-in: f455c5b0 user: drh tags: trunk)
16:59
Fix a segfault that could occur if the ORDER BY clause of a compound SELECT contains a sub-select that uses one or more window functions. (check-in: 5ba15ebb user: dan tags: trunk)
12:58
Fix the display of SrcList in the sqlite3TreeView debugging routines. (check-in: 28ecb381 user: drh tags: trunk)
12:02
Avoid an assert() failure when a compound scalar sub-select is, due to a "WHERE (sub-select) AND (... OR ...)" clause, coded twice by the code generator. (check-in: a4e3f133 user: dan tags: trunk)
11:51
Fix harmless comment typo in main.c. (check-in: 785a553e user: drh tags: trunk)
2021-04-11
00:11
Add NEVER() to a branch that is no longer reachable due to check-in [a1d823f6879ce1ac]. (check-in: 5fda21fe user: drh tags: trunk)
2021-04-10
20:27
Avoid an uninitialized-memory valgrind error by tightening up corruption detection in internal routine defragmentPage(). (check-in: 8096f7ae user: dan tags: trunk)
20:21
Add NEVER() to a branch that became unreachable with check-in [58f36af2271517ab]. (check-in: e07ce463 user: drh tags: trunk)
15:34
Avoid invoking sqlite3Atoi64() will a null pointer following an error from ExpandBlob(). (check-in: 780412f2 user: drh tags: trunk)
14:49
Fix a problem with handling expressions like "(col IS NULL AND <expr1>) OR col == NULL" in WHERE clauses. Reported at https://sqlite.org/forum/forumpost/1c4f2fdcc4. (check-in: 40852ca8 user: dan tags: trunk)
13:37
Refactor NameContext.nErr into nNcErr to avoid confusion with Parse.nErr. Do not abandon sqlite3ResolveExprList() on nNcErr if nErr is still zero as we might have hit a problem with ORDER BY resolution that should be a suppressed error. dbsqlfuzz 41b9dad40919d3549ca7e52d893da81a6dded4ad (check-in: 7d674970 user: drh tags: trunk)
2021-04-09
22:34
Remove a NEVER() in a corruption detection conditional in defragmentPage(). dbsqlfuzz 9c61c33802600b2b01dfb09b0386ceb4ade02a19 (check-in: c174f5d3 user: drh tags: trunk)
22:20
Remove an ALWAYS() that is actually reachable following an OOM on an UPDATE FROM of a virtual table. dbsqlfuzz aa03237ef7c4a028c7cdaf8bbcde2b62e2bcd36e (check-in: 49eac389 user: drh tags: trunk)
20:50
Have the VFS in memdb.c return SQLITE_IOERR_NOMEM instead of SQLITE_NOMEM when an OOM error is encountered. This is required to get the pager module to handle such OOM errors correctly in some cases. (check-in: 09c96b4c user: dan tags: trunk)
2021-04-08
20:29
Fix a use-after-free error that could occur when processing "SELECT aggregate(DISTINCT <expr>)..." queries. (check-in: 0e478986 user: dan tags: trunk)
19:56
Remove an ALWAYS() that might be false under very unusual circumstances. dbsqlfuzz 300261f469ace7ecc57ed32ea7b0de3ea9d7dbf. Test case in TH3. (check-in: 466f5089 user: drh tags: trunk)
19:39
Handle the corruption fixed by the previous commit in a different way so as to also fix dbsqlfuzz crash 753de0a0ac5b25b18f1e4d41e650d3333cdc270c. (check-in: cb27ce25 user: dan tags: trunk)
15:19
Handle a special case of corruption that can present if "PRAGMA writable_schema=1" is set. Fix for dbsqlfuzz test case 6229ad63de49e3ba0630aaf0058868f36008bcca. (check-in: 58f36af2 user: dan tags: trunk)
14:15
Harden the filter_over grammar rule against OOM faults. dbsqlfuzz e47c54502a9c36778a5ed553199d5870e2ebd9f2 (check-in: f375f541 user: drh tags: trunk)
13:52
Remove an incorrect assert() from sqlite3EndTable(). dbsqlfuzz 4af45bcda779592449b1985433bca90b0e683b9b. (check-in: 38a1085c user: drh tags: trunk)
13:41
Fix an obscure memory leak in FTS3. dbsqlfuzz 26a51001beeff35649d2e328b05ec06f93c577a5 (check-in: be7cd9eb user: drh tags: trunk)
2021-04-07
18:17
Do not allow the use of rowid for views and subqueries unless compiled with -DSQLITE_ALLOW_ROWID_IN_VIEW. (check-in: a2ddb89b user: drh tags: trunk)
18:08
Add the SQLITE_ALLOW_ROWID_IN_VIEW option to omitttest.tcl. (Closed-Leaf check-in: 83b8e4c2 user: drh tags: no-rowid-on-view)
15:45
Also prohibit the use of rowid from a subquery. Add the SQLITE_ALLOW_ROWID_IN_VIEW compile-time option to restore legacy behavior in case somebody actually needs it. (check-in: 14b1d56e user: drh tags: no-rowid-on-view)
15:23
Merge version 3.35.4 with this branch. (check-in: 4b4f8791 user: dan tags: reuse-schema-3.35)
15:13
Update a broken assert() on this branch. (check-in: e69f2989 user: dan tags: reuse-schema)
13:20
Unnecessary local variable initialization to fix a harmless compiler warning. (check-in: c22e47c7 user: drh tags: trunk)
12:59
In FTS3, if the xBegin method fails to start a transaction due to an OOM error, then make sure that the virtual table is left in a consistent state. dbsqlfuzz 85ef48423fda4eef79a551654445d8ef3537a590. (check-in: dd553578 user: drh tags: trunk)
12:36
Fix an assert in the automatic-index constructor that can be false following an OOM error. dbsqlfuzz ee04d66c627ed5b5301e0ce09e24db47e0f1544e. (check-in: cc6463fe user: drh tags: trunk)
12:21
Earlier detection of page 1 on the freelist (which is impossible) and reporting of that as database corruption. dbsqlfuzz 6fe6c504b320be5e3eed66896cb0db28bfb38a93. (check-in: b1bf0d98 user: drh tags: trunk)
12:02
Fix a possible crash that could occur when executing a drop column operation on a corrupt database schema. (check-in: c3378494 user: dan tags: trunk)
09:31
Fix seg-fault upon appendvfs attempt to open non-existent file. (check-in: 04f6439f user: larrybr tags: trunk)
2021-04-06
23:29
Do not apply the optimization that omits DISTINCT if all result terms are part of a UNIQUE index if the index is also a partial index. Fix for the bug reported by forum post 66954e9ece. (check-in: c2f940b0 user: drh tags: trunk)
22:56
Detect OOM earlier in the geopoly extension. dbsqlfuzz 0986e7b020e6137fc6b96331f91d15753d18e42d. (check-in: 72371175 user: drh tags: trunk)
21:20
Modify the drop column code to handle WITHOUT ROWID tables for which a single column appears more than once in the primary key. (check-in: e0d25070 user: dan tags: trunk)
19:13
Raise an error if a query tries to access the "rowid" of a view, as views do not have rowids. (check-in: 7a73c616 user: drh tags: no-rowid-on-view)
18:40
Restructure a loop in window.c to avoid hitting an assert() following an OOM. dbsqlfuzz test case 6ef74a9659de87e9be3d8694ad062c448aa7ef1d. (check-in: 887c19a1 user: dan tags: trunk)
18:02
Update an assert statement that could fail when using "PRAGMA writable_schema = 1" to access a database with a corrupt schema. (check-in: 55cad6f6 user: dan tags: trunk)
17:51
Fix issue with failing --enable-debug --enable-fts5 build. (check-in: e7491acc user: dan tags: trunk)
16:55
New test cases added to fuzzdata8.db. (check-in: 039ad662 user: drh tags: trunk)
16:42
Silence an msan warning triggered by a corrupt database by initializing a local variable in sqlite3Insert(). (check-in: f64deece user: dan tags: trunk)
16:16
Avoid a use-after-free that may occur when accessing a corrupt database schema with "PRAGMA writable_schema = 1" set. (check-in: a1d823f6 user: dan tags: trunk)
14:46
Remove some test routines from release builds of fts5. (check-in: 3088bf15 user: dan tags: trunk)
13:57
Fix incorrect RETURNING test cases in wherelimit.test (check-in: 20d21ff9 user: dan tags: trunk)
13:56
Earlier detection of OOM errors during window function processing. dbsqlfuzz b08676f5a0437552c95d2a5d7ef285f8c451ea35. (check-in: 8e04f52e user: drh tags: trunk)
13:53
Handle "RETURNING rowid" clauses attached to INSERTs on views without causing an assert() to fail. Fixes dbsqlfuzz crash 0081f863d7b2002045ac2361879fc80dfebb98f1. (check-in: 9c5b7386 user: dan tags: trunk)
13:03
Further improvements (subsequent to [d91450847a3a3a72]) to handling of attempts to delete a journal using the memdb VFS. dbsqlfuzz ac61dab357279a6a531de067f040e9a4828d2df0. (check-in: a0839406 user: drh tags: trunk)
12:50
Earlier detection and handling of OOM problems. dbsqlfuzz 39f2963ea5559aa3a16e24e0e3cb42aac85a7371. (check-in: 8d46df73 user: drh tags: trunk)
2021-04-05
22:42
Relax an assertion on the sqlite3WhereEnd() routine after dbsqlfuzz found a counter-example. (check-in: e6b591e7 user: drh tags: trunk)
22:30
Add a missing CORRUPT_DB to an assert in the OP_ResultRow opcode. (check-in: 82f92d79 user: drh tags: trunk)
19:23
Adjust the README.md file so that build instructions work for Fossil version 2.12 and later. Forum post 51f28bb701. (check-in: 51f87adc user: drh tags: trunk)
19:05
Do not allow floating point rounding errors to cause a window function xInverse() function to be invoked before the corresponding xStep() call. (check-in: 7a19fed4 user: dan tags: trunk)
17:50
Fix an assert() that can be false when doing an incremental vacuum on a corrupt database file. dbsqlfuzz cced0668cfd4da4eb2382cb9dd26c17c64aaff76. (check-in: 15b80101 user: drh tags: trunk)
16:20
Avoid coding unindexed WHERE constraints if an equivalent transitive term has already been coded by an outer loop. (check-in: 644bb77f user: dan tags: trunk)
13:41
Do not invoke the xDelete method when converting to PRAGMA journal_mode=OFF if the underlying VFS does not support that method. dbsqlfuzz 39d6af88ef5242f866c4f9b21ede330c5c1e36a8. (check-in: d9145084 user: drh tags: trunk)
11:39
As a continuation of [1f66a85b7757754f], ensure that an OOM that occurs while checking the validity of the schema is reported out as SQLITE_NOMEM and not as SQLITE_SCHEMA. (check-in: 5045c8a7 user: drh tags: trunk)
2021-04-04
23:56
Fix an assert() in sqlite3BtreeLast() that needs an "|| CORRUPT_DB" term. Dbsqlfuzz case b92b72e4de80b5140c30ab71372ca719b8feb618. (check-in: ad718388 user: drh tags: trunk)
14:22
Avoid compile error when SQLITE_OMIT_VIRTUALTABLE defined. (check-in: 0ee0ef47 user: larrybr tags: trunk)
12:52
Make shell .parameter feature type-agnostic. Hush harmless compiler warning. (check-in: 35cf295e user: larrybr tags: trunk)
2021-04-03
23:30
Improved robustness to OOM conditions in the window function logic. dbsqlfuzz 0c123f7d80b29beaafc8411c12129e46f7ffdac3. (check-in: 35ff7cbf user: drh tags: trunk)
20:35
Take care not to change an SQLITE_NOMEM error into SQLITE_SCHEMA. (check-in: 1f66a85b user: drh tags: trunk)
19:23
Fix a crash in handling queries of the form "SELECT aggregate(DISTINCT tbl.col) FROM ... LEFT JOIN tbl ...". Fixes a problem introduced by [ef4ac0ddd297bbd3]. (check-in: 0dcf808d user: dan tags: trunk)
2021-04-02
20:43
Correctly capture the error when a RETURNING clause appears on an attempt to UPDATE an eponymous virtual table. dbsqlfuzz 486f791cbe2dc45839310073e71367a1d8ad22dd. (check-in: 778a9a6e user: drh tags: trunk)
19:55
Add experimental SQLITE_FCNTL_EXTERNAL_READER file control. (check-in: e16da5af user: dan tags: trunk)
18:59
Fix a problem with the geopoly_bbox() function. (check-in: f3a2eb97 user: drh tags: trunk)
15:20
Version 3.35.4 (check-in: 5d4c6577 user: dan tags: release, branch-3.35, version-3.35.4)
11:59
Fix incorrect RETURNING test cases in wherelimit.test (check-in: 64b0eb7e user: drh tags: branch-3.35)
2021-04-01
11:30
When resolving names in the RETURNING clause, do not accept trigger names even within subquires. (check-in: 8541c71b user: drh tags: branch-3.35)
2021-03-31
23:56
When resolving names in the RETURNING clause, do not accept trigger names even within subquires. See forum post 34c81d83c9177f46 for context. (check-in: fd4ea3f6 user: drh tags: trunk)
17:49
When resolving column names in the RETURNING clause, do not ignore an incorrect table name qualifier. Raise an error instead. (check-in: 3b916924 user: drh tags: branch-3.35)
17:42
When resolving column names in the RETURNING clause, do not ignore an incorrect table name qualifier. Raise an error instead. See forum post 85aef8bc01 for context. (check-in: 51d5c50b user: drh tags: trunk)
13:51
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: 77a30f3f user: drh tags: branch-3.35)
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: 2d179f58 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: c36b4358 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: 8b681b27 user: dan tags: trunk)
2021-03-30
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: 257e16f7 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: 3039bcaf user: drh tags: trunk)
2021-03-29
21:59
Increase the patch number to 3.35.4. (check-in: 4375cec2 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: 3bf8a357 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: d07e246f 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: 00455954 user: dan tags: trunk)
20:01
Simplify the comparison opcodes in the bytecode engine, for a performance improvement. (check-in: f2af5868 user: drh tags: trunk)
19:47
Fix VDBE coverage macros. (Closed-Leaf check-in: ebe100de 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: 380b4605 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: 93781b6f 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: bd00df8f user: drh tags: compare-opcode-opt)
2021-03-28
23:37
Alternative implementation of the comparison opcode speed-up of check-in [4a8805d9a66dc888] that should pass muster with UBSAN. (check-in: afb18f64 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: 36624d37 user: drh tags: trunk)
2021-03-27
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: 4a8805d9 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: c23d092f user: drh tags: trunk)
2021-03-26
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: f472fd64 user: drh tags: trunk)
13:58
Merge the 3.35.3 enhancements into the wal2 branch. (check-in: a1b8d9d2 user: drh tags: wal2)
13:16
Merge in changes for 3.35.3 (check-in: 76f19f4b user: drh tags: reuse-schema)
12:12
Version 3.35.3 (check-in: 4c5e6c20 user: drh tags: release, branch-3.35, version-3.35.3)
2021-03-24
23:30
Remove old testcases() macros. Also remove surplus end-of-line whitespace. (check-in: 54b41915 user: drh tags: trunk)
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: 037ca79e 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: ef4ac0dd user: drh tags: trunk)
17:04
Fix a harmless compiler warning. (check-in: 26b005a9 user: drh tags: trunk)
2021-03-23
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: 4719fae6 user: dan tags: trunk)
21:02
Add an ALWAYS() on a branch that is always taken. (check-in: 0646d226 user: drh tags: trunk)
19:39
Test result adjustments in test/misc7.test due to the EQP format change. (check-in: d3ade8c7 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: 07704704 user: drh tags: trunk)
15:39
Tweaks to test/scanstatus.test to account for the new EQP format. (check-in: 2eb28afd user: drh tags: trunk)
15:07
Changes to test/analyzeG.test to conform to the new EXPLAIN QUERY PLAN syntax. (check-in: d8afde1b 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: 9ac064fe user: drh tags: trunk)
14:27
Add the ExprList.nAlloc column and use it to make the sqlite3ExprListAppend() routine much faster. (check-in: 1d3c4662 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: f8e28308 user: drh tags: trunk)
2021-03-22
18:53
Merge recent fixes from trunk. (Closed-Leaf check-in: 4a343698 user: drh tags: eqp-improvements)
16:50
Increase the version number to 3.36.0 to begin the next development cycle. (check-in: 5cee689d 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: 8de4cb98 user: drh tags: branch-3.35)
2021-03-21
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: 6bb21340 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: 71e4da13 user: drh tags: trunk)
2021-03-20
23:15
Fix the "box" output mode in the shell when statement returns zero-column rows (for example from "PRAGMA incremental_vacuum"). (check-in: 34439fe3 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: 1b83e232 user: drh tags: eqp-improvements)
15:11
Revise tests cases to align with the new EXPLAIN QUERY PLAN output. (check-in: 50fbd532 user: drh tags: eqp-improvements)
01:00
Fix a faulty assert() in the OP_SkipScan opcode. dbsqlfuzz a15a9b2ca82e812ad52f62c86cc93dca0dc72f01. Test cases in TH3. (check-in: 1805b9aa user: drh tags: trunk)
2021-03-19
19:44
Further simplification of the EQP output. Only show "SUBQUERY n" if the subquery is anonymous. (check-in: 1fadd305 user: drh tags: eqp-improvements)
19:09
Merge enhancements from trunk. (check-in: d192d737 user: drh tags: eqp-improvements)
17:54
In the wholenumber virtual table, increase the cost penalty for running open-loop. This appears to fix the problem reported by forum post b52a020ce4. (check-in: f12b5404 user: drh tags: trunk)
16:29
Dbsqlfuzz found a new way to make that branch in codeVectorCompare reachable. (check-in: 959272c2 user: drh tags: trunk)
15:02
Fix tokenizer's classification of EBCDIC newline. (check-in: 8680f6a8 user: larrybr tags: trunk)
14:51
Restore the NEVER() that was taken out by [f481636f1a0333c6] because that case is no longer reachable after the previous check-in. (check-in: e3a78b2a user: drh tags: trunk)
14:26
Fix a crash that could occur when an INSERT has more than one ON CONFLICT clause, at least one of which contains an unresolvable symbol. (check-in: 74208386 user: dan tags: trunk)
13:53
Correlated CTEs should not generate a materialization subroutine. If they need to be materialized, each use case must be materialized separately. dbsqlfuzz 01b8355086998f0a452cb31208e80b9d29ca739a. (check-in: d72d865d user: drh tags: trunk)
13:00
Improved labeling of EXPLAIN QUERY PLAN output. Many test failures due to the different output format. (check-in: 6f8faec0 user: drh tags: eqp-improvements)
2021-03-18
20:04
Add a NEVER() on a branch that was made unreachable by the "circular reference" fix. (check-in: 114d9780 user: drh tags: trunk)
18:27
Disable a test case requiring generate_series when virtual tables are not available. (check-in: ee86e2f4 user: drh tags: trunk)
18:25
Fix a problem causing spurious "<cte>: circular reference" errors to be reported when there is actually a different error in the SQL statement. (check-in: 99812236 user: dan tags: trunk)
16:52
Increase the patch level to 3.35.3. (check-in: 259b7c3e user: drh tags: trunk)
16:47
Fix the OP_OpenDup opcode so that it is able to duplicate a cursor that was itself opened by OP_OpenDup. Add additional verification of ephemeral tables. Fix for ticket [bb8a9fd4a9b7fce5]. (check-in: bcbe5308 user: drh tags: trunk)
16:36
Remove unnecessary code from sqlite3BtreeClose() and add test cases. (Closed-Leaf check-in: edbfdcae user: drh tags: opendup-fix)
15:42
Further sanity checking of the OpenDup cursors. (check-in: 0ec71cf1 user: drh tags: opendup-fix)
14:36
Fix the dbsqlfuzz-derived authorizer in fuzzcheck to avoid creating junk files when running rogue tests. (check-in: eca21a62 user: drh tags: trunk)
14:31
Automatically close ephemeral b-trees when their last cursor is closed. (check-in: 39b5af18 user: dan tags: opendup-fix)
13:55
Fix a problem with the filename normalizer in unix, discovered by dbsqlfuzz. (check-in: ff1eca7f user: drh tags: trunk)
13:42
Allow instruction OP_OpenDup to duplicate cursors created by OP_OpenDup, as well as by OP_OpenEphemeral. (check-in: b8de980b user: dan tags: opendup-fix)
13:19
New assert statements associated with Ephemeral cursors in the bytecode engine. (check-in: a8ce73e2 user: drh tags: trunk)
12:36
Change the name of the iDataVersion field of Btree to iBDataVersion to make it distinct from Pager.iDataVersion. (check-in: e4c44c0b user: drh tags: trunk)
2021-03-17
19:52
Update to version 3.35.2 (check-in: 18bec0d2 user: drh tags: reuse-schema)
19:07
Version 3.35.2 (check-in: ea80f300 user: drh tags: trunk, release, version-3.35.2)
19:05
Fix a harmless compiler warning in the appendvfs.c extension. (check-in: 0ed7eb91 user: drh tags: trunk)
14:29
If there are already 500 or more simple SELECTs in a query, do not add more by flattening UNION ALL sub-queries into parent join queries. (check-in: 9520bed2 user: dan tags: trunk)
11:25
Fix a problem in sqldiff virtual table hanlding to do with tab and other non-space whitespace characters in the CREATE VIRTUAL TABLE statement. (check-in: 1737e4fd user: dan tags: trunk)
2021-03-16
18:41
Date/time functions with no arguments (ex: date() or time()) should be non-deterministic. Fix for ticket [2c6c8689fb5f3d2f]. (check-in: 1734c332 user: drh tags: trunk)
18:24
Add tests for sqlite_rename_quotefix(). Fix a memory leak in the same. (Closed-Leaf check-in: 53155005 user: dan tags: alter-quotefix)
16:14
Have ALTER TABLE RENAME COLUMN and DROP COLUMN use sqlite_rename_quotefix() to convert any double-quoted strings in the database schema to their single-quoted equivalents. (check-in: 6446c096 user: dan tags: alter-quotefix)
14:43
Increase the version number to 3.35.2. (check-in: 7a211b3f user: drh tags: trunk)
14:26
Fix recent breakage of the appendvfs extension. (check-in: 7dbbe5b3 user: drh tags: trunk)
14:12
Comment and stylistic changes to the appendvfs.c implementation. (Closed-Leaf check-in: 25c3186a user: drh tags: appendvfs_fix)
11:21
Merge trunk changes into this branch. (check-in: f15d5105 user: dan tags: alter-quotefix)
11:11
Fix a problem with ALTER TABLE RENAME COLUMN when used on a schema that features generated columns. Fix for [a753a856]. (check-in: 0e255b26 user: dan tags: trunk)
07:06
Fix assert typo. (check-in: 3aedf818 user: larrybr tags: appendvfs_fix)
06:50
Merge from trunk. (check-in: eae8236f user: larrybr tags: appendvfs_fix)
06:41
Fix appendvfs bug exposed with bigger files, and add tests for such conditions. (check-in: 19b1f53a user: larrybr tags: appendvfs_fix)
04:03
Create new branch named "appendvfs_fix" (check-in: 026edd60 user: larrybr tags: appendvfs_fix)
2021-03-15
20:22
Add internal SQL function sqlite_rename_quotefix(). For converting double-quoted strings to their single-quoted counterparts in DDL statements. (check-in: d874b300 user: dan tags: alter-quotefix)
19:34
Merge version 3.35.1 into the reuse-schema branch. (check-in: 0fe60a63 user: drh tags: reuse-schema)
16:53
Version 3.35.1 (check-in: aea12399 user: drh tags: trunk, release, version-3.35.1)
15:12
Improvements to the built-in ".dump" documentation in the CLI. (check-in: 0915f969 user: drh tags: trunk)
15:02
Bump the version number to 3.35.1. (check-in: 184d5a35 user: drh tags: trunk)
14:58
Improved detection of conflicting indexes when doing DROP COLUMN on a column whose name is quoted in the index definition. Fix for ticket [1c24a659e6d7f3a1]. (check-in: c450d0ad user: drh tags: trunk)
12:56
Make shell's .help output for .dump more accurate as to what can be dumped. (Closed-Leaf check-in: f91d8c09 user: larrybr tags: cli-tweaks)
12:32
Create new branch named "cli-tweaks" (check-in: 4cf056a5 user: larrybr tags: cli-tweaks)
2021-03-14
20:17
An additional test case (Closed-Leaf check-in: 7e2d7ca1 user: drh tags: tkt-1c24a659-b)
19:55
An alternative approach for fixing ticket [1c24a659e6d7f3a1]. (check-in: a2adae90 user: drh tags: tkt-1c24a659-b)
01:40
Never allow a double-quoted identifier that appears by itself in the argument list of an index to be interpreted as a string literal. Proposed fix for ticket [1c24a659e6d7f3a1]. (Closed-Leaf check-in: 7c8aa381 user: drh tags: tkt-1c24a659)
2021-03-13
18:23
Fix a memory leak in the new code on this branch. (Closed-Leaf check-in: 0817cf2e user: dan tags: distinct-agg-opt)
17:21
Fix typos in comments and add test cases. (check-in: 01312a3d user: dan tags: distinct-agg-opt)
2021-03-12
23:15
Update generated autoconf/Makefile.msc to reflect its source. (check-in: d9f8f488 user: larrybr tags: trunk)
21:59
Add test for autoconf/Makefile.msc current with respect to its generator input. (Leaf check-in: 4dfd8716 user: larrybr tags: derived_tests)
21:09
Fix a crash in new code on this branch. (check-in: c05ed2a8 user: dan tags: distinct-agg-opt)
20:29
Merge v3.35.0 release to this branch. (check-in: 6733ed76 user: larrybr tags: derived_tests)
20:24
Create new branch named "derived_tests" (check-in: 8dc765d3 user: larrybr tags: derived_tests)
18:33
Merge latest trunk changes into this branch. (check-in: 198bc510 user: dan tags: distinct-agg-opt)
18:24
Attempt to use an index for DISTINCT aggregate queries that have GROUP BY clauses. (check-in: 3bca003c user: dan tags: distinct-agg-opt)
17:26
Merge the 3.35.0 release into the reuse-schema branch. (check-in: c8237a02 user: drh tags: reuse-schema)
17:08
Merge the 3.35.0 release into the wal2 branch. (check-in: 03142e5f user: drh tags: wal2)
15:10
Version 3.35.0 (check-in: acd63062 user: drh tags: trunk, release, major-release, version-3.35.0)
13:49
Fix broken requirement marks. (check-in: 98d67152 user: drh tags: trunk)
01:49
Fix the ".read" command in the CLI so that SQLITE_OMIT_POPEN disables reading from a pipeline. (check-in: cea34f3c user: drh tags: trunk)
00:44
Conform description of sqlite3changeset_op() arguments to implemented behavior, some reformatting. This is a comment-only change; no code is affected. (check-in: 9d6e544c user: larrybr tags: trunk)
2021-03-11
21:00
Update this branch with latest fixes from trunk. (check-in: 12363f8e user: dan tags: reuse-schema)
19:42
Merge latest trunk changes into this branch. (check-in: 30f912d0 user: dan tags: wal2)
15:57
Fix a Tcl object leak in test_session.c. (check-in: 07150cf1 user: dan tags: trunk)
13:43
Bug fix in appendvfs.c: Adjust the size parameter for SQLITE_FCNTL_SIZE_HINT to account for the prefix. (check-in: 41df3bbe user: drh tags: trunk)
10:55
Merge latest trunk changes into this branch. (check-in: ef8c6e06 user: dan tags: reuse-schema)
08:49
Have the Tcl tests support environment variable SQLITE_TEST_PATTERN_LIST, so that if it is set it is interpreted as a list of patterns that are matched against tests file names. Only test files that match at least one pattern are run. (check-in: b7c92e1d user: dan tags: trunk)
2021-03-10
20:04
Fix sanitizer complaint in fts3 code. (check-in: 424b39ea user: dan tags: trunk)
19:32
Fix further sanitizer complaints in the fts5 code. (check-in: 4cb00b9d user: dan tags: trunk)
18:21
Improved testcase() related the SQLITE_MAX_ATTACHED vs. SQLITE_MAX_DB problem. (check-in: 27d3c00e user: drh tags: trunk)
17:52
Improvement to the ATTACH-abuse authorizer logic in fuzzcheck. (check-in: 88132f69 user: drh tags: trunk)
17:43
Do not run avfs.test when testing SQLITE_OMIT_VIRTUALTABLE builds. (check-in: 2ab6957a user: dan tags: trunk)
16:35
Do not confuse the constant SQLITE_MAX_ATTACHED with the maximum number of schemas. Add the new SQLITE_MAX_DB constant for the maximum number of schemas. Forum post a006d86f72. (check-in: 7b65fb9f user: drh tags: trunk)
15:10
Fix test file avfs.test so that it works with SQLITE_DEFAULT_AUTOVACUUM builds. Do not run avfs.test under test permutation "journaltest". (check-in: 2c6078eb user: dan tags: trunk)
14:57
Fix a few sanitizer complaints in fts5. (check-in: 4fe4fee0 user: dan tags: trunk)
10:43
Fix a problem preventing wapptest from setting SQLITE_ENABLE_LOCKING_STYLE for OSX tests. Also modify the "Sanitize" configuration in releasetest_data.tcl to subsume test item 6g. (check-in: f762d7df user: dan tags: trunk)
06:06
When shell has no .ar, fake its effect w.r.t. page_size and table creation/filling. (check-in: 959f5c65 user: larrybr tags: trunk)
2021-03-09
23:38
Add appendvfs.c to the MSVC makefile. (check-in: a6681fbb user: drh tags: trunk)
21:20
Update a comment in btree.h. (check-in: 9645fe1a user: dan tags: trunk)
20:58
Fix a bad comment (copy-paste error) in the byte code engine. No code changes. (check-in: 1c017457 user: drh tags: trunk)
19:52
Improved comments on the NOT NULL strength reduction optimization. (check-in: a85d7229 user: drh tags: trunk)
19:32
Extra comments and testcase() macros associated with the new sqlite3ParserAddCleanup() mechanism. No changes to release builds. (check-in: c3c86911 user: drh tags: trunk)
17:09
Add --enable-math to the amalgamation autoconf. On be default. Improved logging of the amalgamation autoconf. (check-in: 85d28b52 user: drh tags: trunk)
16:47
Add missing comment to new routine in select.c. (check-in: ef2f0cf2 user: dan tags: distinct-agg-opt)
16:35
Math functions are enabled by default in the main configure script. (check-in: b7456e07 user: drh tags: trunk)
16:06
Experimental optimization for distinct aggregates (e.g. "SELECT count(DISTINCT <expr) FROM ..."). (check-in: eb919611 user: dan tags: distinct-agg-opt)
13:53
Improvements to the configure script. Math functions are enabled by --enable-all. (check-in: c79c6d18 user: drh tags: trunk)
13:12
Update the authorizer in fuzzcheck to align with dbsqlfuzz. (check-in: f86d8fae user: drh tags: trunk)
2021-03-08
20:13
Add tests for too-tiny appended DBs, clarify align macro. (check-in: eb40a8de user: larrybr tags: trunk)
17:22
Add test cases for ALTER TABLE. (check-in: 9c9ba36e user: dan tags: trunk)
17:17
Fix a bad assert in RENAME COLUMN. dbsqlfuzz 3f0a7245b69cd08617d7d7781ebaedb0fe765a93. (check-in: f13e0d12 user: drh tags: trunk)
16:29
Fix a harmless compiler warning in appendvfs.c (check-in: f538961a user: drh tags: trunk)
16:13
Enable internal functions for fuzzcheck. (check-in: 79281603 user: drh tags: trunk)
14:32
Added test/avfs.test (missing from branch merge for some reason.) (check-in: 08fa6705 user: larrybr tags: trunk)
14:26
Merge appendvfs updates and testing. (check-in: 63fcf301 user: larrybr tags: trunk)
13:45
Require that the appendvfs suffix mark indicate that the appended database begins at an offset that is a muliple of 512 and that the appended database contains at least 512 bytes. (Leaf check-in: aeb87cc7 user: drh tags: appendvfs_tighten)
13:30
Correct the precendence order for rules that determine how a database is opened by appendvfs when a database is appended to another database. (check-in: 92989fc5 user: drh tags: appendvfs_tighten)
12:59
Minor comment and formatting changes. (check-in: cf2add06 user: drh tags: appendvfs_tighten)
01:31
Add tests for sqlite3 shell with -append flag. (check-in: d1790288 user: larrybr tags: appendvfs_tighten)
2021-03-07
18:55
Add grow/shrink tests. Fix truncate bug. Make appendvfs.c easier to inspect. (check-in: c9521fa5 user: larrybr tags: appendvfs_tighten)
2021-03-06
23:49
Merge from trunk. (check-in: 729117cd user: larrybr tags: appendvfs_tighten)
23:36
Create initial tests for appendvfs, and make it available as a statically loaded extension. (check-in: 9f33d451 user: larrybr tags: appendvfs_tighten)
15:13
Limit parenthesis nesting depth in FTS3 expressions to SQLITE_MAX_EXPR_DEPTH. (check-in: 5ddd8032 user: drh tags: trunk)
14:46
Ensure the correct collation sequence is used for comparisons when delimiting a RANGE window. (check-in: 01eae68e user: dan tags: trunk)
13:28
Fix a crash in fts3 that could occur when running a NEAR query on a corrupt database. (check-in: 609d9499 user: dan tags: trunk)
13:02
Fix a possible NULL pointer dereference when applying a DROP COLUMN to a corrupt database schema. dbsqlfuzz 419aa525df93db6e463772c686ac6da27b46da9e (check-in: 349ccf58 user: drh tags: trunk)
2021-03-05
20:52
Merge last day of trunk changes, reverify build. (check-in: 1d67ed1c user: larrybr tags: appendvfs_tighten)
20:46
Fix appendvfs bug exposed by docsapp build (in docsrc), and tighten/revise published behavior. (check-in: 7f0f2eac user: larrybr tags: appendvfs_tighten)
18:33
Modify the SQLITE_DBCONFIG_ENABLE_VIEW option so that it always permits TEMP views, just as SQLITE_DBCONFIG_ENABLE_TRIGGER always permits TEMP triggers. (check-in: 83dab8b3 user: drh tags: trunk)
15:42
Fix problems with RETURNING clauses attached to UPDATEs on tables with virtual columns. (check-in: 6b41b136 user: dan tags: trunk)
15:29
Fix another problem with RETURNING clauses in UPDATEs against tables with virtual columns. (Closed-Leaf check-in: f0ef5c76 user: dan tags: returning-fix)
15:10
Fix an assert() failure that could be triggered by a correlated sub-query in a RETURNING clause. (check-in: 551260c8 user: dan tags: returning-fix)
14:08
Fix the processing of implied LIMIT clauses when flattening a compound query. (check-in: 90c6b9fc user: drh tags: trunk)
09:42
Create new branch named "appendvfs_tighten" (check-in: 48c968bf user: larrybr tags: appendvfs_tighten)
2021-03-04
19:44
Mark the NotUsed parameter to the dropColumnFunc() function as unused, to avoid a harmless compiler warning. (check-in: 23459071 user: drh tags: trunk)
18:34
Put ALWAYS() on a branch that is now always true because of changes in OOM behavior due to check-in [9adf6e2469d18bc3]. (check-in: 8a1bb9c3 user: drh tags: trunk)
18:31
Update shell.c.in so that SQLITE_SHELL_IS_UTF8 is set to 0 if the -municode option is passed to gcc on windows. (check-in: 99e6a0f0 user: dan tags: trunk)
16:32
Remove a branch made unreachable by check-in [e893f88750ea64d4]. (check-in: 20d7dc12 user: drh tags: trunk)
16:10
Fix a segfault that could occur following an OOM condition. (check-in: 9adf6e24 user: dan tags: trunk)
16:03
Earlier detection of a misplaced ORDER BY or LIMIT clause in a compound SELECT. This prevents problems in recursive CTEs with multiple recursive terms in which there is an ORDER BY or LIMIT clause on the last non-recursive term. (check-in: e893f887 user: drh tags: trunk)
14:18
Fix a crash that could occur if a sub-select inside an EXISTS expression features an ORDER BY clause containing one or more window functions. (check-in: 9768e7db user: dan tags: trunk)
2021-03-03
19:54
Merge recent trunk enhancements into the reuse-schema branch. (check-in: 73bf458e user: drh tags: reuse-schema)
19:36
Fix a buffer overrun that could occur in fts5 when running a prefix query against a corrupt db. (check-in: 4da40620 user: dan tags: trunk)
19:32
Merge recent trunk enhancements into the wal2 branch. (check-in: 0ae81039 user: drh tags: wal2)
16:46
Remove the --timeout option from the valgrindfuzz Makefile target. (check-in: 3f520b8b user: dan tags: trunk)
16:00
Fix a case where fts3 was erroneously reporting corruption. (check-in: e6c7683c user: dan tags: trunk)
14:07
Fix a harmless assertion fault resulting from [6e6b3729e0549de0] that was discovered by dbsqlfuzz. Enhance .selecttrace output to show omitted ORDER BY clauses. New dbsqlfuzz test cases added. (check-in: 27a0388a user: drh tags: trunk)
11:00
Fix a problem with using ALTER TABLE commands on database schemas that contain expressions of the form "<expr> NOT NULL" or "<expr> IS NULL" that can be evaluated at prepare time. (check-in: d2630ffa user: dan tags: trunk)
2021-03-02
21:07
Cast a string size variable to 64-bit to avoid any possibility of integer overflow. (check-in: a5940294 user: drh tags: trunk)
16:27
Limit the size of the exponent input in the second argument to the ieee754() SQL function, to avoid integer overflow. Ticket [22dea1cfdb9151e4]. (check-in: 99aab32d user: drh tags: trunk)
13:50
Change the timeout for test case "valgrindfuzz" from 600 seconds to 1200. (check-in: 7c6aa6f3 user: dan tags: trunk)
13:36
Do not run test file windowpushd.test as part of the "no_optimization" permutation. (check-in: 275a75aa user: dan tags: trunk)
00:42
Add ALWAYS() to an always-true conditional. (check-in: fa3506db user: drh tags: trunk)
2021-03-01
21:43
Add #ifndef macros so that the build works again with -DSQLITE_OMIT_AUTHORIZATION and -DSQLITE_OMIT_WINDOWFUNC. (check-in: 9400bdc6 user: drh tags: trunk)
16:16
Fix a couple of memory-sanitizer complaints that could be triggered by a corrupt database. (check-in: 39c8686c user: dan tags: trunk)
16:15
Fix another msan complain triggered by a corrupt database. (Closed-Leaf check-in: d235d406 user: dan tags: msan-fix)
2021-02-28
08:24
Initialize extra field in PgHdr1 to fix an msan complaint. (check-in: 4cb2ea57 user: dan tags: msan-fix)
2021-02-27
15:32
Add OOM test case associated with the fix in the previous commit. (check-in: a631c38d user: dan tags: trunk)
15:12
Remove a NEVER() that might sometimes be tree following an OOM. (check-in: ccb8cf52 user: drh tags: trunk)
2021-02-26
21:39
Fix a segfault that could occur when optimizing a NOT NULL constraint against an IPK column of a sub-query. (check-in: e4d1970e user: dan tags: trunk)
20:39
Attempt to optimize "x IS NULL" and "x IS NOT NULL" expressions when x is a column with a NOT NULL constraint. This addresses the performance issue described by forum post a5fc33cf9d8f4ff5. (check-in: de9c86c9 user: dan tags: trunk)
20:14
Attempt to optimize "x IS NULL" and "x IS NOT NULL" expressions when x is a column with a NOT NULL constraint. (Closed-Leaf check-in: 5ecd8425 user: dan tags: ifnull-opt)
15:20
Minor simplification in resolve.c. (check-in: 310dac34 user: dan tags: trunk)
2021-02-25
18:28
Fix test case in altercorrupt.test so that it works with SQLITE_ENABLE_OVERSIZE_CELL_CHECK builds. (check-in: 062b338f user: dan tags: trunk)
18:23
Fix a problem with UPDATE and DELETE statements that use both INDEXED BY and LIMIT clauses in SQLITE_ENABLE_UPDATE_DELETE_LIMIT builds. (check-in: cc2b4b38 user: dan tags: trunk)
16:55
Fix handling of INSERT on views with implicitly named hidden columns in SQLITE_ENABLE_HIDDEN_COLUMNS builds. (check-in: 15795a96 user: dan tags: trunk)
15:50
Ensure that tests like "rbu.test" and "notify2.test" that are only run by specific configurations during release testing are run for both release and debug versions of the tests. (check-in: 911df43f user: dan tags: trunk)
2021-02-23
16:40
When a sub-transaction is released, if no pages required by containing sub-transactions were journaled, truncate the statement journal. This prevents out of control statement journal growth in some cases. See forum thread e78ffd751185a67e for context. (check-in: 23ca2389 user: dan tags: trunk)
15:53
Allow WHERE terms to be pushed down into sub-queries that contain window functions, provided that the WHERE term is made up of entirely of constants and copies of expressions found in the PARTITION BY clauses of all window functions in the sub-query. (check-in: 20689468 user: dan tags: trunk)
15:36
Further tests for the push-down optimization with window functions. (Closed-Leaf check-in: 4b089f70 user: dan tags: window-functions-pushdown)
2021-02-22
20:56
Allow WHERE terms to be pushed down into sub-queries that contain window functions, provided that the WHERE term is made up of entirely of constants and copies of expressions found in the PARTITION BY clauses of all window functions in the sub-query. (check-in: dac51f30 user: dan tags: window-functions-pushdown)
19:57
Add a few simple test cases for MATERIALIZED and NOT MATERIALIZED. (check-in: 64878124 user: drh tags: trunk)
16:42
Implement the MATERIALIZED and NOT MATERIALIZED hints on common table expressions. (check-in: b5a0778c user: drh tags: trunk)
15:44
When a sub-transaction is released, if no pages required by containing sub-transactions were journaled, truncate the statement journal. This might prevent out-of-control statement journal growth in some cases. (Closed-Leaf check-in: e36327fb user: dan tags: stmt-jrnl-truncate)
14:25
Add an ALWAYS() on a branch that is now unreachable. (Closed-Leaf check-in: ace54c5b user: drh tags: as-materialize-redux)
11:07
Fix inverted logic regarding the materialization hint on the push-down optimization. (check-in: b66a4957 user: drh tags: as-materialize-redux)
03:04
Add the AS MATERIALIZED and AS NOT MATERIALIZED syntax that works like it does in PostgreSQL. (check-in: a6bb272e user: drh tags: as-materialize-redux)
2021-02-21
23:44
Materialize any CTE that is used more than once. (check-in: ba59159f user: drh tags: as-materialize-redux)
21:04
Rename the "struct SrcList_item" object to the more succinct "SrcItem". This is a symbolic change only. The logic is unmodified. (check-in: bfd5bf2c user: drh tags: trunk)
01:19
Simplified resolution of CTE names. Slightly faster and about 100 bytes of code smaller. (check-in: 0d2c992f user: drh tags: trunk)
2021-02-20
21:20
Performance improvement in resolving the INDEXED BY index name for the common case where there is no INDEXED BY clause. (check-in: 554b286a user: drh tags: trunk)
19:22
Fix a case where FTS3/4 could pass a NULL pointer to memcpy() when handling a corrupt db. (check-in: 68bb541a user: dan tags: trunk)
18:02
Update sqlite3changeset_apply_v2() so that it handles no-op UPDATE changes (UPDATE changes that modify no columns). This fixes a regression introduced by [e4ccfac09b]. Also modify sqlite3rebaser_rebase() so that it does not output changesets containing such UPDATEs. (check-in: 0288a801 user: dan tags: trunk)
14:57
Break out the Cte object from the With object. This will make it simpler to add new kinds of Cte objects (ex: DML statements) and/or MATERIALIZED keywords in the future. It brings trunk into closer alignment with the experimental as-materialize branch. (check-in: f03efe90 user: drh tags: trunk)
13:36
Simplification to where.c manually cherrypicked from the as-materialize branch. (check-in: 03805a61 user: drh tags: trunk)
12:47
Merge changes from trunk. (Later:) Abandon this line of development. See the as-materialize-redux branch. (Closed-Leaf check-in: 7a90571e user: drh tags: as-materialize)
2021-02-19
18:39
Fix another problem handling corrupt database files in the ALTER TABLE DROP COLUMN code. (check-in: 9edf2ddc user: dan tags: trunk)
15:34
Add tests for ALTER TABLE DROP COLUMN commands. (check-in: 05dbea9b user: dan tags: trunk)
14:32
Add support for "ALTER TABLE ... DROP COLUMN ..." commands. (check-in: c844a331 user: dan tags: trunk)
14:13
Fix a crash that could occur in ALTER TABLE DROP COLUMN if the sqlite_schema table was corrupt. (Closed-Leaf check-in: 126ee1ec user: dan tags: alter-table-drop-column)
09:46
Omit an branch made unreachable by the improved error message from dropping the last column of a table. (check-in: c5719fc5 user: drh tags: alter-table-drop-column)
09:36
The COLUMN keyword in ALTER TABLE DROP COLUMN is optional. (check-in: a22f87fb user: drh tags: alter-table-drop-column)
09:09
Give a better error message on DROP COLUMN when attempting to drop the last column of a table. (check-in: 5e1f362b user: drh tags: alter-table-drop-column)
02:30
Add a NEVER() to an unreachable branch in the DROP COLUMN logic. (check-in: 963f498a user: drh tags: alter-table-drop-column)
2021-02-18
23:53
Add missing VdbeCoverage() macros. (check-in: 9bb720e6 user: drh tags: alter-table-drop-column)
23:03
Enhance renameParseSql() to better handle OOMs. (check-in: 68bcde7a user: drh tags: alter-table-drop-column)
22:47
Merge changes from trunk into the alter-table-drop-column branch. (check-in: 9ea64007 user: drh tags: alter-table-drop-column)
20:27
Fix DROP COLUMN so that it works even if the user has registered an authorizer callback. (check-in: e5f14418 user: dan tags: alter-table-drop-column)
19:25
Fix a problem with schema error detection when processing ALTER TABLE DROP COLUMN commands. (check-in: 565a6fd0 user: dan tags: alter-table-drop-column)
17:48
Add test cases for ALTER TABLE DROP COLUMN. (check-in: 204ee5e2 user: dan tags: alter-table-drop-column)
15:59
Avoid invoking the update or pre-update hooks during VACUUM operations. (check-in: 3c25cb4a user: dan tags: trunk)
15:45
Improvement to the INSERT optimization of check-in [16ac213c57196361] so that it works with SQLITE_ENABLE_HIDDEN_COLUMN but is also easier to maintain and a little faster as well. (check-in: f985a78e user: drh tags: trunk)
14:27
Disable the optimization of [16ac213c57196361] when the SQLITE_ENABLE_HIDDEN_COLUMN compile-time option is used, as the optimization does not work in that case. (check-in: 5168b06b user: drh tags: trunk)
12:18
Ensure that the pre-update hook is invoked for INSERT operations on WITHOUT ROWID tables that use the xfer optimization. (check-in: 66bbad23 user: dan tags: trunk)
01:02
Add missing VdbeCoverage() macros to some of the new RETURNING code. (check-in: 53a53909 user: drh tags: trunk)
00:59
Performance optimization in the resolver. (check-in: 1aafb94d user: drh tags: trunk)
00:26
Performance optimization in the code generator for INSERT for the common case where the target table has neither generated nor hidden columns. Also fix a redundant (and thus unreachable) branch in the resolver. (check-in: 16ac213c user: drh tags: trunk)
2021-02-17
21:13
Use the sqlite3ParserAddCleanup() mechanism to ensure that the AggInfo structure associated with an aggregate query is deallocated, for a performance increase and size reduction. (check-in: 7a139967 user: drh tags: trunk)
20:46
Fix a problem with OOM error handling in the new code on this branch. (check-in: ea999c9d user: dan tags: alter-table-drop-column)
20:19
Merge trunk changes into this branch. (check-in: 0cd5e2f9 user: dan tags: alter-table-drop-column)
20:08
Fix various issues with the changes on this branch. Add test cases for the same. (check-in: 10538ec6 user: dan tags: alter-table-drop-column)
13:19
Enhance the ".once" and ".output" commands in the CLI so that if the filename argument begins with "|" the name becomes the concatenation of all subsequent arguments. Hence, commands like ".once | open -f" become possible without the need for quotes. (check-in: c46a94a6 user: drh tags: trunk)
2021-02-16
20:43
Add experimental implementation of ALTER TABLE DROP COLUMN. Only some cases work so far. (check-in: f0217937 user: dan tags: alter-table-drop-column)
20:32
Simplification to the resolveAlias() routine. (check-in: 00bead39 user: drh tags: trunk)
20:01
New SELECTTRACE macros more clearly deliniate when the query planner is invoked in the middle of PRAGMA vdbe_addoptrace output. (check-in: 7c03ce49 user: drh tags: trunk)
19:29
Remove unnecessarily complexity from sqlite3WithReleaseByParse(). Improved TreeView output for the enhanced CTE structures. This code still does not work 100%. I'm saving my place in order to (maybe) come back to it later. (check-in: 30bb18b4 user: drh tags: as-materialize)
16:32
Trying to get the new AS MATERIALIZE syntax of CTEs to work. There are still performance and memory management issues. This is a WIP check-in. (check-in: bf0fd9b2 user: drh tags: as-materialize)
00:48
Change the syntax from "GENERATED AS" to "AS MATERIALIZED" so as to match the syntax of PostgreSQL 12+. (Closed-Leaf check-in: 78dcddd9 user: drh tags: with-generated-as)
2021-02-15
17:51
Merge the LIKE operator fix from trunk. (check-in: 8c861878 user: drh tags: with-generated-as)
17:02
Fix an issue with the LIKE operator when it includes the "ESCAPE '_'" clause. Ticket [c0aeea67d58ae0fd]. (check-in: 27d41179 user: drh tags: trunk)